Arduino Mini Computer

A small, low power computer with 11 apps. (and room for 13 more)

Jun 10, 2023

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Components and supplies

SSD1306 OLED Display

Arduino Mega 2560 Rev3

ELEGOO Upgraded 37 in 1 Sensor Modules Kit

Push Button

Box of 300 pcs 3-5 mm LED lights in various colors

Apps and platforms

Arduino IDE 2.0

Project description

Code

MiniComputer.ino

cpp

1/*
2
3  Mini Computer
4  by Keir Lahey
5  Current version: Sep 21, 2023
6
7*/
8
9#include <RTClib.h>  // Include libraries
10
11#include <DHT.h>
12#include <DHT_U.h>
13
14#include <Adafruit_SSD1306.h>
15#include "home_screen.h"
16#include "images.h"
17#include "game.h"
18
19Adafruit_SSD1306 disp(128, 64);  // Define display & sensors
20DHT dht(39, DHT11);
21RTC_DS1307 rtc;
22
23#define LEFT 2  // Buttons
24#define RIGHT 8
25#define SELECT 5
26#define EXIT 11
27
28#define FLASHLIGHT 14  // Output devices
29#define AUDIO 23
30
31uint8_t left_current;  // Current & previous states of LEFT
32uint8_t left_previous;
33
34uint8_t right_current;  // Current & previous states of RIGHT
35uint8_t right_previous;
36
37uint8_t select_current;  // Current & previous states of SELECT
38uint8_t select_previous;
39
40uint8_t exit_current;  // Current & previous states of EXIT
41uint8_t exit_previous;
42
43const unsigned char icon[] PROGMEM = {  // Program icon - a laptop
44  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
45  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x7f, 0xff, 0xf8, 0x00, 0x40, 0x00, 0x08,
46  0x00, 0x5f, 0xff, 0xe8, 0x00, 0x50, 0x00, 0x28, 0x00, 0x57, 0xfe, 0x28, 0x00, 0x50, 0x00, 0x28,
47  0x00, 0x57, 0x80, 0x28, 0x00, 0x50, 0x00, 0x28, 0x00, 0x57, 0xf0, 0x28, 0x00, 0x50, 0x00, 0x28,
48  0x00, 0x5f, 0xc0, 0x28, 0x00, 0x40, 0x7f, 0xe8, 0x00, 0x7f, 0x80, 0x08, 0x00, 0x80, 0x7f, 0xf8,
49  0x01, 0x95, 0x00, 0x08, 0x06, 0x2a, 0xaa, 0x10, 0x0c, 0x55, 0x54, 0x60, 0x10, 0x00, 0x00, 0xc0,
50  0x20, 0x1f, 0x83, 0x00, 0x7f, 0xff, 0xfe, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
51  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00
52};
53
54bool flashlight = false, audio = true, beep = true, booby_trap_mode = false;  // Settings
55uint8_t speed = 1;                                                            // Music playback speed
56
57void buttonPressBase() {  // Place this function at the start of every button click event
58  clicks++;
59  if (beep && audio) {     // What mini computer sketch would be complete without a little
60    tone(AUDIO, 300, 40);  // "beep" noise every time a button is pressed? Don't worry, you
61  }                        // can turn it off in Settings
62
63  if(booby_trap_mode){ // If this setting is on and someone touches this, you'll know
64    for(int i = 0; i < 40; i++){
65      tone(AUDIO, 750, 100);
66      delay(150);
67    }
68    booby_trap_mode = false;
69  }
70}
71
72//digitalWrite() & pinMode() combined
73void digitalWriteAndPinMode(uint8_t pin, uint8_t val) {
74  pinMode(pin, OUTPUT);
75  digitalWrite(pin, val);
76}
77
78void setup() {
79  pinMode(LEFT, INPUT_PULLUP);  // Setup buttons
80  digitalWriteAndPinMode(LEFT + 2, LOW); // Since the components attach directly to the board, extra code is required for powering them
81  pinMode(RIGHT, INPUT_PULLUP);
82  digitalWriteAndPinMode(RIGHT + 2, LOW);
83  pinMode(SELECT, INPUT_PULLUP);
84  digitalWriteAndPinMode(SELECT + 2, LOW);
85  pinMode(EXIT, INPUT_PULLUP);
86  digitalWriteAndPinMode(EXIT + 2, LOW);
87
88  pinMode(FLASHLIGHT, OUTPUT);  // Setup flashlight
89  digitalWriteAndPinMode(FLASHLIGHT + 1, LOW);
90  pinMode(AUDIO, OUTPUT);  // Setup audio
91  digitalWriteAndPinMode(27, LOW);
92
93  digitalWriteAndPinMode(18, LOW);  // Setup RTC
94  digitalWriteAndPinMode(19, HIGH);
95  rtc.begin();
96
97  disp.begin(SSD1306_SWITCHCAPVCC, 0x3c);  // Begin communication with display
98
99  dht.begin();  // Setup DHT
100  digitalWriteAndPinMode(37, HIGH);
101  digitalWriteAndPinMode(35, LOW);
102
103  //rtc.adjust(DateTime([date & time go here])); // Set date & time on RTC. Uncomment this, upload this sketch, comment this again, then upload 1 last time
104
105  disp.setTextColor(WHITE);  // Set text color and size
106  disp.setTextSize(1);
107  disp.setCursor(0, 0);
108  disp.setRotation(2);  // The display is placed upside-down, so this makes everything display upside-down
109
110  disp.clearDisplay();  // Bootup screen
111  disp.setCursor(0, 0);
112  disp.println(F("Mini Computer!"));
113  disp.println(F("Sep 21, 2023"));
114  disp.drawBitmap(47, 31, icon, 32, 32, WHITE);  // The laptop icon
115  disp.display();
116  delay(2500);
117
118  left_previous = digitalRead(LEFT);
119  right_previous = digitalRead(RIGHT);
120  select_previous = digitalRead(SELECT);
121  exit_previous = digitalRead(EXIT);
122}
123
124void loop() {
125  home_screen_loop();  // See home_screen.ino
126}

/*

  Mini Computer
  by Keir Lahey
  Current version: Sep 21, 2023

*/

#include <RTClib.h>  // Include libraries

#include <DHT.h>
#include <DHT_U.h>

#include <Adafruit_SSD1306.h>
#include "home_screen.h"
#include "images.h"
#include "game.h"

Adafruit_SSD1306 disp(128, 64);  // Define display & sensors
DHT dht(39, DHT11);
RTC_DS1307 rtc;

#define LEFT 2  // Buttons
#define RIGHT 8
#define SELECT 5
#define EXIT 11

#define FLASHLIGHT 14  // Output devices
#define AUDIO 23

uint8_t left_current;  // Current & previous states of LEFT
uint8_t left_previous;

uint8_t right_current;  // Current & previous states of RIGHT
uint8_t right_previous;

uint8_t select_current;  // Current & previous states of SELECT
uint8_t select_previous;

uint8_t exit_current;  // Current & previous states of EXIT
uint8_t exit_previous;

const unsigned char icon[] PROGMEM = {  // Program icon - a laptop
  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x7f, 0xff, 0xf8, 0x00, 0x40, 0x00, 0x08,
  0x00, 0x5f, 0xff, 0xe8, 0x00, 0x50, 0x00, 0x28, 0x00, 0x57, 0xfe, 0x28, 0x00, 0x50, 0x00, 0x28,
  0x00, 0x57, 0x80, 0x28, 0x00, 0x50, 0x00, 0x28, 0x00, 0x57, 0xf0, 0x28, 0x00, 0x50, 0x00, 0x28,
  0x00, 0x5f, 0xc0, 0x28, 0x00, 0x40, 0x7f, 0xe8, 0x00, 0x7f, 0x80, 0x08, 0x00, 0x80, 0x7f, 0xf8,
  0x01, 0x95, 0x00, 0x08, 0x06, 0x2a, 0xaa, 0x10, 0x0c, 0x55, 0x54, 0x60, 0x10, 0x00, 0x00, 0xc0,
  0x20, 0x1f, 0x83, 0x00, 0x7f, 0xff, 0xfe, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00
};

bool flashlight = false, audio = true, beep = true, booby_trap_mode = false;  // Settings
uint8_t speed = 1;                                                            // Music playback speed

void buttonPressBase() {  // Place this function at the start of every button click event
  clicks++;
  if (beep && audio) {     // What mini computer sketch would be complete without a little
    tone(AUDIO, 300, 40);  // "beep" noise every time a button is pressed? Don't worry, you
  }                        // can turn it off in Settings

  if(booby_trap_mode){ // If this setting is on and someone touches this, you'll know
    for(int i = 0; i < 40; i++){
      tone(AUDIO, 750, 100);
      delay(150);
    }
    booby_trap_mode = false;
  }
}

//digitalWrite() & pinMode() combined
void digitalWriteAndPinMode(uint8_t pin, uint8_t val) {
  pinMode(pin, OUTPUT);
  digitalWrite(pin, val);
}

void setup() {
  pinMode(LEFT, INPUT_PULLUP);  // Setup buttons
  digitalWriteAndPinMode(LEFT + 2, LOW); // Since the components attach directly to the board, extra code is required for powering them
  pinMode(RIGHT, INPUT_PULLUP);
  digitalWriteAndPinMode(RIGHT + 2, LOW);
  pinMode(SELECT, INPUT_PULLUP);
  digitalWriteAndPinMode(SELECT + 2, LOW);
  pinMode(EXIT, INPUT_PULLUP);
  digitalWriteAndPinMode(EXIT + 2, LOW);

  pinMode(FLASHLIGHT, OUTPUT);  // Setup flashlight
  digitalWriteAndPinMode(FLASHLIGHT + 1, LOW);
  pinMode(AUDIO, OUTPUT);  // Setup audio
  digitalWriteAndPinMode(27, LOW);

  digitalWriteAndPinMode(18, LOW);  // Setup RTC
  digitalWriteAndPinMode(19, HIGH);
  rtc.begin();

  disp.begin(SSD1306_SWITCHCAPVCC, 0x3c);  // Begin communication with display

  dht.begin();  // Setup DHT
  digitalWriteAndPinMode(37, HIGH);
  digitalWriteAndPinMode(35, LOW);

  //rtc.adjust(DateTime([date & time go here])); // Set date & time on RTC. Uncomment this, upload this sketch, comment this again, then upload 1 last time

  disp.setTextColor(WHITE);  // Set text color and size
  disp.setTextSize(1);
  disp.setCursor(0, 0);
  disp.setRotation(2);  // The display is placed upside-down, so this makes everything display upside-down

  disp.clearDisplay();  // Bootup screen
  disp.setCursor(0, 0);
  disp.println(F("Mini Computer!"));
  disp.println(F("Sep 21, 2023"));
  disp.drawBitmap(47, 31, icon, 32, 32, WHITE);  // The laptop icon
  disp.display();
  delay(2500);

  left_previous = digitalRead(LEFT);
  right_previous = digitalRead(RIGHT);
  select_previous = digitalRead(SELECT);
  exit_previous = digitalRead(EXIT);
}

void loop() {
  home_screen_loop();  // See home_screen.ino
}

clock.ino

cpp

1/*
2
3  clock.ino
4  Displays the time, also has a timer feature
5
6*/
7
8void clock_loop() {
9  delay(300);                          // Wait 300 ms, to prevent instantly opening the timer
10  while (true) {                       // Infinite loop, to simulate the loop() function
11    left_current = digitalRead(LEFT);  // Read buttons
12    right_current = digitalRead(RIGHT);
13    select_current = digitalRead(SELECT);
14    exit_current = digitalRead(EXIT);
15
16    if (left_previous == HIGH && left_current == LOW) {  // If left button pressed
17      clicks++;                                          // No beep, but it'll still count as a click
18    }
19    if (right_previous == HIGH && right_current == LOW) {  // If right button pressed
20      clicks++;
21    }
22    if (select_previous == HIGH && select_current == LOW) {  // If select button pressed
23      buttonPressBase();
24      timer_loop();  // Open timer
25    }
26    if (exit_previous == HIGH && exit_current == LOW) {  // If exit button pressed
27      clicks++;
28      break;
29    }
30
31    disp.clearDisplay();  // Refresh display
32    disp.setCursor(0, 0);
33    disp.setTextSize(2);
34
35    DateTime now = rtc.now();  // Display time. For now, there are no trailing 0's. So: 03:06 = 3:6
36    if(now.hour() < 10){ // Leading 0
37      disp.print("0");
38    }
39    disp.print(now.hour());
40    disp.print(":");
41    if(now.minute() < 10){ // Leading 0
42      disp.print("0");
43    }
44    disp.print(now.minute());
45
46    disp.setTextSize(1);
47    disp.println(F("\n\n"));
48    disp.println(F("Press SELECT to open timer"));
49    disp.display();
50
51    left_previous = left_current;  // Set previous button states
52    right_previous = right_current;
53    select_previous = select_current;
54    exit_previous = exit_current;
55  }
56}

/*

  clock.ino
  Displays the time, also has a timer feature

*/

void clock_loop() {
  delay(300);                          // Wait 300 ms, to prevent instantly opening the timer
  while (true) {                       // Infinite loop, to simulate the loop() function
    left_current = digitalRead(LEFT);  // Read buttons
    right_current = digitalRead(RIGHT);
    select_current = digitalRead(SELECT);
    exit_current = digitalRead(EXIT);

    if (left_previous == HIGH && left_current == LOW) {  // If left button pressed
      clicks++;                                          // No beep, but it'll still count as a click
    }
    if (right_previous == HIGH && right_current == LOW) {  // If right button pressed
      clicks++;
    }
    if (select_previous == HIGH && select_current == LOW) {  // If select button pressed
      buttonPressBase();
      timer_loop();  // Open timer
    }
    if (exit_previous == HIGH && exit_current == LOW) {  // If exit button pressed
      clicks++;
      break;
    }

    disp.clearDisplay();  // Refresh display
    disp.setCursor(0, 0);
    disp.setTextSize(2);

    DateTime now = rtc.now();  // Display time. For now, there are no trailing 0's. So: 03:06 = 3:6
    if(now.hour() < 10){ // Leading 0
      disp.print("0");
    }
    disp.print(now.hour());
    disp.print(":");
    if(now.minute() < 10){ // Leading 0
      disp.print("0");
    }
    disp.print(now.minute());

    disp.setTextSize(1);
    disp.println(F("\n\n"));
    disp.println(F("Press SELECT to open timer"));
    disp.display();

    left_previous = left_current;  // Set previous button states
    right_previous = right_current;
    select_previous = select_current;
    exit_previous = exit_current;
  }
}

timer.ino

cpp

1/*
2
3  timer.ino
4  A simple timer, part of the Clock app
5
6*/
7
8uint32_t millis_start;  // The time when the timer was started
9uint8_t time = 5;       // The length of the timer (in mins)
10bool timer_started;     // Is the timer started?
11
12void timer_loop() {
13  delay(300);  // Wait 300 ms, to prevent the timer starting immediately
14  while (true) {
15    left_current = digitalRead(LEFT);  // Read buttons
16    right_current = digitalRead(RIGHT);
17    select_current = digitalRead(SELECT);
18    exit_current = digitalRead(EXIT);
19
20    if (left_previous == HIGH && left_current == LOW) {  // If left button pressed
21      buttonPressBase();
22      time--;
23      if (time < 1) {
24        time = 1;
25      }
26    }
27    if (right_previous == HIGH && right_current == LOW) {  // If right button pressed
28      buttonPressBase();
29      time++;
30      if (time > 240) {
31        time = 240;
32      }
33    }
34    if (select_previous == HIGH && select_current == LOW) {  // If select button pressed
35      buttonPressBase();
36      if (!timer_started) {
37        millis_start = millis();
38        timer_started = true;
39      }
40    }
41    if (exit_previous == HIGH && exit_current == LOW) {  // If exit button pressed
42      clicks++;                                          // No beep, but it'll still count as a click
43      break;
44    }
45
46    uint8_t mins = time - floor((millis() - millis_start) / 60000.0);  // Take care of timer stuff
47    if (timer_started && mins == 0) {                                  // Time up!
48      if (audio) {
49        tone(AUDIO, 1000, 1000);
50      }
51      timer_started = false;  // Make sure it doesn't think the timer is still going
52      delay(500);
53    }
54
55    disp.clearDisplay();  // Refresh display
56    disp.setCursor(0, 0);
57    if (timer_started) {
58      disp.println(F("Timer started!"));
59      disp.print(mins);
60      if (mins == 1) {  // If 1 min is left: display "1 min left" instead of "1 mins left"
61        disp.println(F(" min left"));
62      } else {
63        disp.println(F(" mins left"));
64      }
65    } else {
66      disp.println(F("Set timer:"));
67      disp.print(time);
68      disp.println(F(" mins"));
69    }
70    disp.setTextSize(1);
71    disp.display();
72
73    left_previous = left_current;  // Set previous button states
74    right_previous = right_current;
75    select_previous = select_current;
76    exit_previous = exit_current;
77  }
78}

/*

  timer.ino
  A simple timer, part of the Clock app

*/

uint32_t millis_start;  // The time when the timer was started
uint8_t time = 5;       // The length of the timer (in mins)
bool timer_started;     // Is the timer started?

void timer_loop() {
  delay(300);  // Wait 300 ms, to prevent the timer starting immediately
  while (true) {
    left_current = digitalRead(LEFT);  // Read buttons
    right_current = digitalRead(RIGHT);
    select_current = digitalRead(SELECT);
    exit_current = digitalRead(EXIT);

    if (left_previous == HIGH && left_current == LOW) {  // If left button pressed
      buttonPressBase();
      time--;
      if (time < 1) {
        time = 1;
      }
    }
    if (right_previous == HIGH && right_current == LOW) {  // If right button pressed
      buttonPressBase();
      time++;
      if (time > 240) {
        time = 240;
      }
    }
    if (select_previous == HIGH && select_current == LOW) {  // If select button pressed
      buttonPressBase();
      if (!timer_started) {
        millis_start = millis();
        timer_started = true;
      }
    }
    if (exit_previous == HIGH && exit_current == LOW) {  // If exit button pressed
      clicks++;                                          // No beep, but it'll still count as a click
      break;
    }

    uint8_t mins = time - floor((millis() - millis_start) / 60000.0);  // Take care of timer stuff
    if (timer_started && mins == 0) {                                  // Time up!
      if (audio) {
        tone(AUDIO, 1000, 1000);
      }
      timer_started = false;  // Make sure it doesn't think the timer is still going
      delay(500);
    }

    disp.clearDisplay();  // Refresh display
    disp.setCursor(0, 0);
    if (timer_started) {
      disp.println(F("Timer started!"));
      disp.print(mins);
      if (mins == 1) {  // If 1 min is left: display "1 min left" instead of "1 mins left"
        disp.println(F(" min left"));
      } else {
        disp.println(F(" mins left"));
      }
    } else {
      disp.println(F("Set timer:"));
      disp.print(time);
      disp.println(F(" mins"));
    }
    disp.setTextSize(1);
    disp.display();

    left_previous = left_current;  // Set previous button states
    right_previous = right_current;
    select_previous = select_current;
    exit_previous = exit_current;
  }
}

home_screen.h

cpp

1/*
2
3  home_screen.h - data about apps
4
5*/
6
7#define APPS 11          // Number of apps
8int8_t current_app = 0;  // The currently selected app
9uint16_t clicks = 0;     // Amount of times you pressed a button - used in the Stats app
10
11String app_names[11] = {  // The names of all the apps
12  "Clock",
13  "Calculator",
14  "Documents",
15  "Game",
16  "Music",
17  "Pictures",
18  "Settings",
19  "Temperature",
20  "Stats",
21  "Calendar",
22  "Info"
23};
24
25const unsigned char home_screen[] PROGMEM = {  // The home screen uses this background image for app icons. There is plenty of room for other apps, for if I think of another.
26  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
27  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
28  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
29  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
30  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
31  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
32  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
33  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
34  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
35  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
36  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
37  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
38  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
39  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
40  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
41  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
42  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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90};

/*

  home_screen.h - data about apps

*/

#define APPS 11          // Number of apps
int8_t current_app = 0;  // The currently selected app
uint16_t clicks = 0;     // Amount of times you pressed a button - used in the Stats app

String app_names[11] = {  // The names of all the apps
  "Clock",
  "Calculator",
  "Documents",
  "Game",
  "Music",
  "Pictures",
  "Settings",
  "Temperature",
  "Stats",
  "Calendar",
  "Info"
};

const unsigned char home_screen[] PROGMEM = {  // The home screen uses this background image for app icons. There is plenty of room for other apps, for if I think of another.
  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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  0x50, 0xda, 0x50, 0x0a, 0x43, 0x02, 0x40, 0x02, 0x40, 0x02, 0x40, 0x02, 0x40, 0x02, 0x40, 0x02,
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  0x56, 0xda, 0x50, 0x0a, 0x43, 0x02, 0x40, 0x02, 0x40, 0x02, 0x40, 0x02, 0x40, 0x02, 0x40, 0x02,
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  0x5f, 0xfa, 0x40, 0x02, 0x43, 0x82, 0x40, 0x02, 0x40, 0x02, 0x40, 0x02, 0x40, 0x02, 0x40, 0x02,
  0x40, 0x02, 0x40, 0x02, 0x40, 0x02, 0x40, 0x02, 0x40, 0x02, 0x40, 0x02, 0x40, 0x02, 0x40, 0x02,
  0x7f, 0xfe, 0x7f, 0xfe, 0x7f, 0xfe, 0x7f, 0xfe, 0x7f, 0xfe, 0x7f, 0xfe, 0x7f, 0xfe, 0x7f, 0xfe,
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  0x40, 0x02, 0x40, 0x02, 0x40, 0x02, 0x40, 0x02, 0x40, 0x02, 0x40, 0x02, 0x40, 0x02, 0x40, 0x02,
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  0x40, 0x02, 0x40, 0x02, 0x40, 0x02, 0x40, 0x02, 0x40, 0x02, 0x40, 0x02, 0x40, 0x02, 0x40, 0x02,
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  0x40, 0x02, 0x40, 0x02, 0x40, 0x02, 0x40, 0x02, 0x40, 0x02, 0x40, 0x02, 0x40, 0x02, 0x40, 0x02,
  0x40, 0x02, 0x40, 0x02, 0x40, 0x02, 0x40, 0x02, 0x40, 0x02, 0x40, 0x02, 0x40, 0x02, 0x40, 0x02,
  0x40, 0x02, 0x40, 0x02, 0x40, 0x02, 0x40, 0x02, 0x40, 0x02, 0x40, 0x02, 0x40, 0x02, 0x40, 0x02,
  0x7f, 0xfe, 0x7f, 0xfe, 0x7f, 0xfe, 0x7f, 0xfe, 0x7f, 0xfe, 0x7f, 0xfe, 0x7f, 0xfe, 0x7f, 0xfe,
  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00
};

home_screen.ino

cpp

1/*
2
3  home_screen.ino
4  You guessed it - this is the code for the home screen
5
6*/
7
8void home_screen_loop() {            // Main loop for the home screen
9  left_current = digitalRead(LEFT);  // Read button states
10  right_current = digitalRead(RIGHT);
11  select_current = digitalRead(SELECT);
12  exit_current = digitalRead(EXIT);
13
14  if (left_previous == HIGH && left_current == LOW) {  // If left button pressed
15    buttonPressBase();                                 // The base code of every button press event. See the main file for details
16    current_app--;
17    if (current_app < 0) {     // Make sure you don't select an app "-1", which doesn't exist
18      current_app = APPS - 1;  // APPS - 1, because we start counting from 0
19    }
20  }
21  if (right_previous == HIGH && right_current == LOW) {  // If right button pressed
22    buttonPressBase();
23    current_app++;
24    if (current_app >= APPS) {
25      current_app = 0;
26    }
27  }
28  if (select_previous == HIGH && select_current == LOW) {  // If select button pressed
29    buttonPressBase();
30    switch (current_app) {  // Open the selected app
31      case 0:  // Clock
32        clock_loop();
33        break;
34      case 1:  // Calculator
35        calc_loop();
36        break;
37      case 2:  // Docs
38        docs_loop();
39        break;
40      case 3:  // Game
41        game_main_menu();
42        break;
43      case 4:  // Music
44        music_loop();
45        break;
46      case 5:  // Images
47        images_loop();
48        break;
49      case 6:  // Settings
50        settings_loop();
51        break;
52      case 7:  // Temperature and humidity
53        th_loop();
54        break;
55      case 8:  // Stats
56        stats_loop();
57        break;
58      case 9:  // Calendar
59        calendar_loop();
60        break;
61      case 10:                // Info
62        disp.clearDisplay();  // Being a small app, I decided to program it here, instead of in it's own seperate file
63        disp.setCursor(0, 0);
64        disp.println(F("Mini Computer"));
65        disp.println(F("Sep 21, 2023"));
66        disp.drawBitmap(47, 31, icon, 32, 32, WHITE);
67        disp.display();
68        delay(2500);
69        break;
70      default:  // Others - If there is no code for an app, this is used instead
71        ni_loop();
72        break;
73    }
74  }
75
76  if (flashlight) {  // Flashlight
77    digitalWrite(FLASHLIGHT, HIGH);
78  } else {
79    digitalWrite(FLASHLIGHT, LOW);
80  }
81
82  disp.clearDisplay();  // Refresh display
83  disp.setCursor(0, 0);
84  disp.drawBitmap(0, 0, home_screen, 128, 64, WHITE);                                 // Base image
85  disp.drawRect((current_app % 8) * 16, 16 + (current_app / 8) * 16, 16, 16, WHITE);  // The rect around the seleected app is thicker, so this draws a larger rect to do that
86  disp.print(app_names[current_app]);
87  disp.display();
88
89  left_previous = left_current;  // Set previous button states
90  right_previous = right_current;
91  select_previous = select_current;
92  exit_previous = exit_current;
93}

/*

  home_screen.ino
  You guessed it - this is the code for the home screen

*/

void home_screen_loop() {            // Main loop for the home screen
  left_current = digitalRead(LEFT);  // Read button states
  right_current = digitalRead(RIGHT);
  select_current = digitalRead(SELECT);
  exit_current = digitalRead(EXIT);

  if (left_previous == HIGH && left_current == LOW) {  // If left button pressed
    buttonPressBase();                                 // The base code of every button press event. See the main file for details
    current_app--;
    if (current_app < 0) {     // Make sure you don't select an app "-1", which doesn't exist
      current_app = APPS - 1;  // APPS - 1, because we start counting from 0
    }
  }
  if (right_previous == HIGH && right_current == LOW) {  // If right button pressed
    buttonPressBase();
    current_app++;
    if (current_app >= APPS) {
      current_app = 0;
    }
  }
  if (select_previous == HIGH && select_current == LOW) {  // If select button pressed
    buttonPressBase();
    switch (current_app) {  // Open the selected app
      case 0:  // Clock
        clock_loop();
        break;
      case 1:  // Calculator
        calc_loop();
        break;
      case 2:  // Docs
        docs_loop();
        break;
      case 3:  // Game
        game_main_menu();
        break;
      case 4:  // Music
        music_loop();
        break;
      case 5:  // Images
        images_loop();
        break;
      case 6:  // Settings
        settings_loop();
        break;
      case 7:  // Temperature and humidity
        th_loop();
        break;
      case 8:  // Stats
        stats_loop();
        break;
      case 9:  // Calendar
        calendar_loop();
        break;
      case 10:                // Info
        disp.clearDisplay();  // Being a small app, I decided to program it here, instead of in it's own seperate file
        disp.setCursor(0, 0);
        disp.println(F("Mini Computer"));
        disp.println(F("Sep 21, 2023"));
        disp.drawBitmap(47, 31, icon, 32, 32, WHITE);
        disp.display();
        delay(2500);
        break;
      default:  // Others - If there is no code for an app, this is used instead
        ni_loop();
        break;
    }
  }

  if (flashlight) {  // Flashlight
    digitalWrite(FLASHLIGHT, HIGH);
  } else {
    digitalWrite(FLASHLIGHT, LOW);
  }

  disp.clearDisplay();  // Refresh display
  disp.setCursor(0, 0);
  disp.drawBitmap(0, 0, home_screen, 128, 64, WHITE);                                 // Base image
  disp.drawRect((current_app % 8) * 16, 16 + (current_app / 8) * 16, 16, 16, WHITE);  // The rect around the seleected app is thicker, so this draws a larger rect to do that
  disp.print(app_names[current_app]);
  disp.display();

  left_previous = left_current;  // Set previous button states
  right_previous = right_current;
  select_previous = select_current;
  exit_previous = exit_current;
}

calculator.ino

cpp

1/*
2
3  calculator.ino
4  A simple calculator
5
6*/
7
8const uint8_t PROGMEM calc_sprite[] = {  // 12x8 calculator sprite
9  0b11111111,
10  0b11100001,
11  0b11111111,
12  0b10000001,
13  0b10000001,
14  0b11111111,
15  0b10101011,
16  0b11010101,
17  0b10101011,
18  0b11010101,
19  0b10101011,
20  0b11111111
21};
22
23String opA = "";  // Operand A & B
24String opB = "";
25float opA_final = 0;  // opA & opB, converted to floats
26float opB_final = 0;
27float result = 0;  // The final answer
28
29int8_t currentChracter;  // Current character
30int8_t oper;             // Operator
31
32uint8_t cursorTimer;  // Timer used to blink the cursor (|)
33
34bool current_operand;  // Are we editing opA (false) or opB (true)?
35bool answered;         // Has the answer generated?
36
37char* charList = "0123456789.+-x/^";  // 0-9, +,-,x,/
38char* charList2 = "0123456789.=";     // 0-9, =
39char* charList3 = "lr";               // r=sqrt, l=log : operators
40
41// Draws the UI
42// length: the amount of buttons to print
43// charList: the list of characters displayed in the buttons
44void drawUI(uint8_t length, char* charList) {
45  for (uint8_t x = 0; x < length; x++) {  // Draw buttons
46    if (currentChracter == x) {           // If this is the selected button, highlight it
47      disp.fillRect(0 + (x * 8), 13, 9, 11, WHITE);
48      disp.setTextColor(BLACK);
49    } else {
50      disp.drawRect(0 + (x * 8), 13, 9, 11, WHITE);
51      disp.setTextColor(WHITE);
52    }
53    disp.setCursor(2 + (x * 8), 15);
54    disp.print(charList[x]);  // Print the character corresponding to the button
55  }
56}
57
58// A special variant of drawUI - for charList3
59void drawUI3() {
60  for (uint8_t x = 0; x < 2; x++) {  // Draw buttons
61    if (currentChracter - 16 == x) {
62      disp.fillRect(0 + (x * 24), 24, 25, 11, WHITE);
63      disp.setTextColor(BLACK);
64    } else {
65      disp.drawRect(0 + (x * 24), 24, 25, 11, WHITE);
66      disp.setTextColor(WHITE);
67    }
68    disp.setCursor(3 + (x * 24), 25);
69    switch (charList3[x]) {  // These operators have displayed text longer than 1 character
70      case 'l':
71        disp.print(F("log"));
72        break;
73      case 'r':
74        disp.print(F("srt"));
75        break;
76    }
77  }
78}
79
80// Draw the "?" button
81void drawUIHelp() {
82  if (currentChracter == -1) {  // The "?" button is -1 in the code
83    disp.fillRect(118, 52, 9, 11, WHITE);
84    disp.setTextColor(BLACK);
85  } else {
86    disp.drawRect(118, 52, 9, 11, WHITE);
87    disp.setTextColor(WHITE);
88  }
89  disp.setCursor(120, 54);
90  disp.print(F("?"));
91}
92
93void drawCursor() {  // Draw cursor (|)
94  if (cursorTimer <= 6) {
95    disp.print(F("|"));
96  }
97}
98
99void calc_loop() {
100  delay(300);                          // Slight delay to prevent glitches.
101  while (true) {                       // Infinite loop to simulate the loop() function
102    left_current = digitalRead(LEFT);  // Read button states
103    right_current = digitalRead(RIGHT);
104    select_current = digitalRead(SELECT);
105    exit_current = digitalRead(EXIT);
106
107    if (right_previous == HIGH && right_current == LOW) {  // If right button pressed
108      buttonPressBase();
109      currentChracter++;
110      if (current_operand == false) {  // If opA is being edited, there are 18 buttons
111        if (currentChracter >= 18) {
112          currentChracter = -1;
113        }
114      } else if (current_operand == true) {  // If opB is being edited, there are only 12 buttons
115        if (currentChracter >= 12) {
116          currentChracter = -1;
117        }
118      }
119    }
120
121    if (left_previous == HIGH && left_current == LOW) {  // If left button pressed
122      buttonPressBase();
123      currentChracter--;               // Pretty simular to the code above
124      if (current_operand == false) {  // opA
125        if (currentChracter < -1) {
126          currentChracter = 17;
127        }
128      } else if (current_operand == true) {  // opB
129        if (currentChracter < -1) {
130          currentChracter = 11;
131        }
132      }
133    }
134
135    if (select_previous == HIGH && select_current == LOW) {  // Enter button
136      buttonPressBase();
137
138      if (currentChracter == -1) {  // Help button, displays info about the calculator
139        disp.clearDisplay();        // Info
140        disp.setTextColor(WHITE);
141        disp.setCursor(0, 0);
142        disp.println(F("Very simple\ncalculator\n09-18-2023"));
143        disp.drawBitmap(2, 50, calc_sprite, 8, 12, WHITE);
144        disp.display();
145        delay(2700);
146
147        disp.clearDisplay();  // What the operators are
148        disp.setCursor(0, 0);
149        disp.println(F("Operators:\nlog=log10, srt=sqrt"));
150        disp.drawBitmap(2, 50, calc_sprite, 8, 12, WHITE);
151        disp.display();
152        delay(2700);
153      }
154
155      if (currentChracter < 11 && currentChracter > -1) {  // If you pressed 0-9 or .
156        if (current_operand == false) {                    // opA
157          opA += charList[currentChracter];
158        } else if (current_operand == true) {  // opB
159          opB += charList[currentChracter];
160        }
161      }
162
163      else if (current_operand == 0 && currentChracter < 16 && currentChracter > -1) {  // +,-,x,/,^ - operators
164        oper = currentChracter;                                                         // Sets the operator to the one currently selected
165        currentChracter = 0;
166        current_operand = true;  // move on the opB
167      }
168
169      ///// CALCULATE!!! /////
170      else if (current_operand == false && currentChracter >= 16) {  // log,sqrt - unary operators
171        opA_final = opA.toDouble();                                  // Since these are unary operators, you don't need opB
172        oper = currentChracter;                                      // Sets the operator to the one currently selected
173
174        if (oper == 16) {  // log10
175          result = log10(opA_final);
176        } else if (oper == 17) {  // sqrt
177          result = sqrt(opA_final);
178        }
179
180        answered = true;
181      }
182
183      else if (current_operand == true && currentChracter == 11) {  // = - for binary operators
184        opA_final = opA.toDouble();                                 // Convert the operands from strings to numbers
185        opB_final = opB.toDouble();
186
187        if (oper == 11) {  // +
188          result = opA_final + opB_final;
189        } else if (oper == 12) {  // -
190          result = opA_final - opB_final;
191        } else if (oper == 13) {  // x
192          result = opA_final * opB_final;
193        } else if (oper == 14) {  // /
194          result = (double)opA_final / (double)opB_final;
195        } else if (oper == 15) {  // ^
196          result = pow(opA_final, opB_final);
197        }
198
199        answered = true;
200      }
201    }
202
203    if (exit_previous == HIGH && exit_current == LOW) {  // If exit button pressed
204      clicks++;
205      break;
206    }
207
208    cursorTimer++;  // Cursor timer stuff
209    if (cursorTimer > 12) {
210      cursorTimer = 0;
211    }
212
213    disp.clearDisplay();  // Refresh display
214
215    disp.setCursor(2, 2);
216    disp.setTextColor(WHITE);
217    disp.drawRect(0, 0, 128, 11, WHITE);                // Text box
218    disp.drawBitmap(2, 50, calc_sprite, 8, 12, WHITE);  // Calculator sprite
219
220    if (answered == true) {                  // If answer generated
221      if ((oper == 14 && opB_final == 0)) {  // Divide by 0
222        disp.print(F("ERROR"));
223      } else {                                   // Print the answer
224        if (result - floor(result) < 0.00001) {  // If the result doesn't have a decimal, don't display it (eg. instead of 313.00000, display 313)
225          disp.print((double)result, 0);
226        } else {  // Else, display a decimal
227          disp.print((double)result, 5);
228        }
229      }
230      drawUI(12, charList2);
231      drawUIHelp();
232      disp.display();
233      delay(6000); // Display answer for 6 seconds
234
235      answered = false;
236      opA_final = 0;
237      opB_final = 0;
238      opA = "";
239      opB = "";
240      currentChracter = 0;
241      current_operand = false;
242    }
243
244    else {                             // During typing
245      if (current_operand == false) {  // opA
246        disp.print(opA);
247        drawCursor();
248        drawUI(16, charList);
249        drawUI3();
250        drawUIHelp();
251      } else if (current_operand == true) {  // opB
252        disp.print(opA);
253        if (oper == 11) { // Print operator
254          disp.print(F("+"));
255        } else if (oper == 12) {
256          disp.print(F("-"));
257        } else if (oper == 13) {
258          disp.print(F("x"));
259        } else if (oper == 14) {
260          disp.print(F("/"));
261        } else if (oper == 15) {
262          disp.print(F("^"));
263        }
264        disp.print(opB);
265        drawCursor();
266        drawUI(12, charList2);
267        drawUIHelp();
268      }
269      disp.display();
270    }
271
272    left_previous = left_current;  // Set previous button states
273    right_previous = right_current;
274    select_previous = select_current;
275    exit_previous = exit_current;
276
277    delay(20);
278  }
279}

/*

  calculator.ino
  A simple calculator

*/

const uint8_t PROGMEM calc_sprite[] = {  // 12x8 calculator sprite
  0b11111111,
  0b11100001,
  0b11111111,
  0b10000001,
  0b10000001,
  0b11111111,
  0b10101011,
  0b11010101,
  0b10101011,
  0b11010101,
  0b10101011,
  0b11111111
};

String opA = "";  // Operand A & B
String opB = "";
float opA_final = 0;  // opA & opB, converted to floats
float opB_final = 0;
float result = 0;  // The final answer

int8_t currentChracter;  // Current character
int8_t oper;             // Operator

uint8_t cursorTimer;  // Timer used to blink the cursor (|)

bool current_operand;  // Are we editing opA (false) or opB (true)?
bool answered;         // Has the answer generated?

char* charList = "0123456789.+-x/^";  // 0-9, +,-,x,/
char* charList2 = "0123456789.=";     // 0-9, =
char* charList3 = "lr";               // r=sqrt, l=log : operators

// Draws the UI
// length: the amount of buttons to print
// charList: the list of characters displayed in the buttons
void drawUI(uint8_t length, char* charList) {
  for (uint8_t x = 0; x < length; x++) {  // Draw buttons
    if (currentChracter == x) {           // If this is the selected button, highlight it
      disp.fillRect(0 + (x * 8), 13, 9, 11, WHITE);
      disp.setTextColor(BLACK);
    } else {
      disp.drawRect(0 + (x * 8), 13, 9, 11, WHITE);
      disp.setTextColor(WHITE);
    }
    disp.setCursor(2 + (x * 8), 15);
    disp.print(charList[x]);  // Print the character corresponding to the button
  }
}

// A special variant of drawUI - for charList3
void drawUI3() {
  for (uint8_t x = 0; x < 2; x++) {  // Draw buttons
    if (currentChracter - 16 == x) {
      disp.fillRect(0 + (x * 24), 24, 25, 11, WHITE);
      disp.setTextColor(BLACK);
    } else {
      disp.drawRect(0 + (x * 24), 24, 25, 11, WHITE);
      disp.setTextColor(WHITE);
    }
    disp.setCursor(3 + (x * 24), 25);
    switch (charList3[x]) {  // These operators have displayed text longer than 1 character
      case 'l':
        disp.print(F("log"));
        break;
      case 'r':
        disp.print(F("srt"));
        break;
    }
  }
}

// Draw the "?" button
void drawUIHelp() {
  if (currentChracter == -1) {  // The "?" button is -1 in the code
    disp.fillRect(118, 52, 9, 11, WHITE);
    disp.setTextColor(BLACK);
  } else {
    disp.drawRect(118, 52, 9, 11, WHITE);
    disp.setTextColor(WHITE);
  }
  disp.setCursor(120, 54);
  disp.print(F("?"));
}

void drawCursor() {  // Draw cursor (|)
  if (cursorTimer <= 6) {
    disp.print(F("|"));
  }
}

void calc_loop() {
  delay(300);                          // Slight delay to prevent glitches.
  while (true) {                       // Infinite loop to simulate the loop() function
    left_current = digitalRead(LEFT);  // Read button states
    right_current = digitalRead(RIGHT);
    select_current = digitalRead(SELECT);
    exit_current = digitalRead(EXIT);

    if (right_previous == HIGH && right_current == LOW) {  // If right button pressed
      buttonPressBase();
      currentChracter++;
      if (current_operand == false) {  // If opA is being edited, there are 18 buttons
        if (currentChracter >= 18) {
          currentChracter = -1;
        }
      } else if (current_operand == true) {  // If opB is being edited, there are only 12 buttons
        if (currentChracter >= 12) {
          currentChracter = -1;
        }
      }
    }

    if (left_previous == HIGH && left_current == LOW) {  // If left button pressed
      buttonPressBase();
      currentChracter--;               // Pretty simular to the code above
      if (current_operand == false) {  // opA
        if (currentChracter < -1) {
          currentChracter = 17;
        }
      } else if (current_operand == true) {  // opB
        if (currentChracter < -1) {
          currentChracter = 11;
        }
      }
    }

    if (select_previous == HIGH && select_current == LOW) {  // Enter button
      buttonPressBase();

      if (currentChracter == -1) {  // Help button, displays info about the calculator
        disp.clearDisplay();        // Info
        disp.setTextColor(WHITE);
        disp.setCursor(0, 0);
        disp.println(F("Very simple\ncalculator\n09-18-2023"));
        disp.drawBitmap(2, 50, calc_sprite, 8, 12, WHITE);
        disp.display();
        delay(2700);

        disp.clearDisplay();  // What the operators are
        disp.setCursor(0, 0);
        disp.println(F("Operators:\nlog=log10, srt=sqrt"));
        disp.drawBitmap(2, 50, calc_sprite, 8, 12, WHITE);
        disp.display();
        delay(2700);
      }

      if (currentChracter < 11 && currentChracter > -1) {  // If you pressed 0-9 or .
        if (current_operand == false) {                    // opA
          opA += charList[currentChracter];
        } else if (current_operand == true) {  // opB
          opB += charList[currentChracter];
        }
      }

      else if (current_operand == 0 && currentChracter < 16 && currentChracter > -1) {  // +,-,x,/,^ - operators
        oper = currentChracter;                                                         // Sets the operator to the one currently selected
        currentChracter = 0;
        current_operand = true;  // move on the opB
      }

      ///// CALCULATE!!! /////
      else if (current_operand == false && currentChracter >= 16) {  // log,sqrt - unary operators
        opA_final = opA.toDouble();                                  // Since these are unary operators, you don't need opB
        oper = currentChracter;                                      // Sets the operator to the one currently selected

        if (oper == 16) {  // log10
          result = log10(opA_final);
        } else if (oper == 17) {  // sqrt
          result = sqrt(opA_final);
        }

        answered = true;
      }

      else if (current_operand == true && currentChracter == 11) {  // = - for binary operators
        opA_final = opA.toDouble();                                 // Convert the operands from strings to numbers
        opB_final = opB.toDouble();

        if (oper == 11) {  // +
          result = opA_final + opB_final;
        } else if (oper == 12) {  // -
          result = opA_final - opB_final;
        } else if (oper == 13) {  // x
          result = opA_final * opB_final;
        } else if (oper == 14) {  // /
          result = (double)opA_final / (double)opB_final;
        } else if (oper == 15) {  // ^
          result = pow(opA_final, opB_final);
        }

        answered = true;
      }
    }

    if (exit_previous == HIGH && exit_current == LOW) {  // If exit button pressed
      clicks++;
      break;
    }

    cursorTimer++;  // Cursor timer stuff
    if (cursorTimer > 12) {
      cursorTimer = 0;
    }

    disp.clearDisplay();  // Refresh display

    disp.setCursor(2, 2);
    disp.setTextColor(WHITE);
    disp.drawRect(0, 0, 128, 11, WHITE);                // Text box
    disp.drawBitmap(2, 50, calc_sprite, 8, 12, WHITE);  // Calculator sprite

    if (answered == true) {                  // If answer generated
      if ((oper == 14 && opB_final == 0)) {  // Divide by 0
        disp.print(F("ERROR"));
      } else {                                   // Print the answer
        if (result - floor(result) < 0.00001) {  // If the result doesn't have a decimal, don't display it (eg. instead of 313.00000, display 313)
          disp.print((double)result, 0);
        } else {  // Else, display a decimal
          disp.print((double)result, 5);
        }
      }
      drawUI(12, charList2);
      drawUIHelp();
      disp.display();
      delay(6000); // Display answer for 6 seconds

      answered = false;
      opA_final = 0;
      opB_final = 0;
      opA = "";
      opB = "";
      currentChracter = 0;
      current_operand = false;
    }

    else {                             // During typing
      if (current_operand == false) {  // opA
        disp.print(opA);
        drawCursor();
        drawUI(16, charList);
        drawUI3();
        drawUIHelp();
      } else if (current_operand == true) {  // opB
        disp.print(opA);
        if (oper == 11) { // Print operator
          disp.print(F("+"));
        } else if (oper == 12) {
          disp.print(F("-"));
        } else if (oper == 13) {
          disp.print(F("x"));
        } else if (oper == 14) {
          disp.print(F("/"));
        } else if (oper == 15) {
          disp.print(F("^"));
        }
        disp.print(opB);
        drawCursor();
        drawUI(12, charList2);
        drawUIHelp();
      }
      disp.display();
    }

    left_previous = left_current;  // Set previous button states
    right_previous = right_current;
    select_previous = select_current;
    exit_previous = exit_current;

    delay(20);
  }
}

docs.ino

cpp

1/*
2
3  docs.ino
4  Up to 4 documents can be displayed here
5
6*/
7
8int8_t current_document; // Selected document
9
10void docs_loop() {
11  delay(300);  // Slight delay to prevent glitches.
12  while (true) {
13    left_current = digitalRead(LEFT);  // Read button states
14    right_current = digitalRead(RIGHT);
15    select_current = digitalRead(SELECT);
16    exit_current = digitalRead(EXIT);
17
18    if (left_previous == HIGH && left_current == LOW) {  // If left button pressed
19      buttonPressBase();
20      current_document--;
21      if (current_document < 0) {
22        current_document = 3;
23      }
24    }
25    if (right_previous == HIGH && right_current == LOW) {  // If right button pressed
26      buttonPressBase();
27      current_document++;
28      if (current_document >= 4) {
29        current_document = 0;
30      }
31    }
32    if (select_previous == HIGH && select_current == LOW) {  // If select button pressed
33      buttonPressBase();
34      disp.clearDisplay();
35      disp.setCursor(0, 0);
36      switch (current_document) {  // Document contents
37        case 0:
38          disp.print(F("Sample text for document 1"));  // You can replace this text with anything you want
39          break;
40        case 1:
41          disp.print(F("Sample text for document 2"));
42          break;
43        case 2:
44          disp.print(F("Sample text for document 3"));
45          break;
46        case 3:
47          disp.print(F("Sample text for document 4"));
48          break;
49      }
50      disp.display();
51      delay(5000);  // Display contents for 5 seconds
52    }
53    if (exit_previous == HIGH && exit_current == LOW) {  // If exit button pressed
54      clicks++;
55      break;
56    }
57
58    disp.clearDisplay();  // Refresh display
59    disp.setCursor(0, 0);
60    disp.print(F("Documents"));
61    for (int i = 0; i < 4; i++) {
62      disp.drawRect(0, i * 12 + 12, 128, 12, WHITE);
63      disp.setCursor(2, i * 12 + 14);
64      if (current_document == i) { // Adds a ">" to the start of the selected documents name
65        disp.print(F(">"));
66      }
67      switch (i) {  // Document names
68        case 0:
69          disp.print(F("Doc1"));  // You can replace this text with anything you want
70          break;
71        case 1:
72          disp.print(F("Doc2"));
73          break;
74        case 2:
75          disp.print(F("Doc3"));
76          break;
77        case 3:
78          disp.print(F("Doc4"));
79          break;
80      }
81    }
82    disp.display();
83
84    left_previous = left_current;  // Set previous states
85    right_previous = right_current;
86    select_previous = select_current;
87    exit_previous = exit_current;
88  }
89}

/*

  docs.ino
  Up to 4 documents can be displayed here

*/

int8_t current_document; // Selected document

void docs_loop() {
  delay(300);  // Slight delay to prevent glitches.
  while (true) {
    left_current = digitalRead(LEFT);  // Read button states
    right_current = digitalRead(RIGHT);
    select_current = digitalRead(SELECT);
    exit_current = digitalRead(EXIT);

    if (left_previous == HIGH && left_current == LOW) {  // If left button pressed
      buttonPressBase();
      current_document--;
      if (current_document < 0) {
        current_document = 3;
      }
    }
    if (right_previous == HIGH && right_current == LOW) {  // If right button pressed
      buttonPressBase();
      current_document++;
      if (current_document >= 4) {
        current_document = 0;
      }
    }
    if (select_previous == HIGH && select_current == LOW) {  // If select button pressed
      buttonPressBase();
      disp.clearDisplay();
      disp.setCursor(0, 0);
      switch (current_document) {  // Document contents
        case 0:
          disp.print(F("Sample text for document 1"));  // You can replace this text with anything you want
          break;
        case 1:
          disp.print(F("Sample text for document 2"));
          break;
        case 2:
          disp.print(F("Sample text for document 3"));
          break;
        case 3:
          disp.print(F("Sample text for document 4"));
          break;
      }
      disp.display();
      delay(5000);  // Display contents for 5 seconds
    }
    if (exit_previous == HIGH && exit_current == LOW) {  // If exit button pressed
      clicks++;
      break;
    }

    disp.clearDisplay();  // Refresh display
    disp.setCursor(0, 0);
    disp.print(F("Documents"));
    for (int i = 0; i < 4; i++) {
      disp.drawRect(0, i * 12 + 12, 128, 12, WHITE);
      disp.setCursor(2, i * 12 + 14);
      if (current_document == i) { // Adds a ">" to the start of the selected documents name
        disp.print(F(">"));
      }
      switch (i) {  // Document names
        case 0:
          disp.print(F("Doc1"));  // You can replace this text with anything you want
          break;
        case 1:
          disp.print(F("Doc2"));
          break;
        case 2:
          disp.print(F("Doc3"));
          break;
        case 3:
          disp.print(F("Doc4"));
          break;
      }
    }
    disp.display();

    left_previous = left_current;  // Set previous states
    right_previous = right_current;
    select_previous = select_current;
    exit_previous = exit_current;
  }
}

game.h

cpp

1/*
2
3  game.h
4  The Point and Rect classes, as well as other game data 
5
6*/
7
8#include <math.h>
9#include <stdint.h>
10
11uint8_t difficulty = 1; // Difficulty. Controls the speed of the ball. Range: 1-5
12
13class Point {
14public:
15  int x;
16  int y;
17  bool simulated = true;
18  Point(int x_, int y_) {
19    x = x_;
20    y = y_;
21  }
22  Point() {
23    x = 0;
24    y = 0;
25  }
26  static bool Equals(Point a, Point b) {
27    if (a.x == b.x && a.y == b.y) {
28      return true;
29    } else {
30      return false;
31    }
32  }
33  float distanceTo(Point b){
34    int distX = b.x - x;
35    int distY = b.y - y;
36    distX *= distX;
37    distY *= distY;
38    return sqrtf(distX + distY);
39  }
40};
41
42class Rect {
43public:
44  int x;
45  int y;
46  int w;
47  int h;
48  bool simulated = true;
49  Rect(int x_, int y_, int w_, int h_) {
50    x = x_;
51    y = y_;
52    w = w_;
53    h = h_;
54  }
55  Rect(Point origin, int w_, int h_) {
56    x = origin.x;
57    y = origin.y;
58    w = w_;
59    h = h_;
60  }
61  Rect() { 
62    x = 0;
63    y = 0;
64    w = 0;
65    h = 0;
66  }
67  bool pointInRect(Point otherPoint, int rectInflation = 0) {
68    if (
69      (otherPoint.x >= x - rectInflation && 
70      otherPoint.x <= x + w + rectInflation) && 
71      (otherPoint.y >= y - rectInflation && 
72      otherPoint.y <= y + h + rectInflation)) {
73      return true;
74    } else {
75      return false;
76    }
77  }
78  bool touching(Rect otherRect, int rectInflation = 0) {
79    if (
80      pointInRect(Point(otherRect.x, otherRect.y), rectInflation) ||
81      pointInRect(Point(otherRect.x + otherRect.w, otherRect.y), rectInflation) ||
82      pointInRect(Point(otherRect.x, otherRect.y + otherRect.h), rectInflation) || 
83      pointInRect(Point(otherRect.x + otherRect.w, otherRect.y + otherRect.h), rectInflation)) {
84      return true;
85    } else {
86      return false;
87    }
88  }
89};

/*

  game.h
  The Point and Rect classes, as well as other game data 

*/

#include <math.h>
#include <stdint.h>

uint8_t difficulty = 1; // Difficulty. Controls the speed of the ball. Range: 1-5

class Point {
public:
  int x;
  int y;
  bool simulated = true;
  Point(int x_, int y_) {
    x = x_;
    y = y_;
  }
  Point() {
    x = 0;
    y = 0;
  }
  static bool Equals(Point a, Point b) {
    if (a.x == b.x && a.y == b.y) {
      return true;
    } else {
      return false;
    }
  }
  float distanceTo(Point b){
    int distX = b.x - x;
    int distY = b.y - y;
    distX *= distX;
    distY *= distY;
    return sqrtf(distX + distY);
  }
};

class Rect {
public:
  int x;
  int y;
  int w;
  int h;
  bool simulated = true;
  Rect(int x_, int y_, int w_, int h_) {
    x = x_;
    y = y_;
    w = w_;
    h = h_;
  }
  Rect(Point origin, int w_, int h_) {
    x = origin.x;
    y = origin.y;
    w = w_;
    h = h_;
  }
  Rect() { 
    x = 0;
    y = 0;
    w = 0;
    h = 0;
  }
  bool pointInRect(Point otherPoint, int rectInflation = 0) {
    if (
      (otherPoint.x >= x - rectInflation && 
      otherPoint.x <= x + w + rectInflation) && 
      (otherPoint.y >= y - rectInflation && 
      otherPoint.y <= y + h + rectInflation)) {
      return true;
    } else {
      return false;
    }
  }
  bool touching(Rect otherRect, int rectInflation = 0) {
    if (
      pointInRect(Point(otherRect.x, otherRect.y), rectInflation) ||
      pointInRect(Point(otherRect.x + otherRect.w, otherRect.y), rectInflation) ||
      pointInRect(Point(otherRect.x, otherRect.y + otherRect.h), rectInflation) || 
      pointInRect(Point(otherRect.x + otherRect.w, otherRect.y + otherRect.h), rectInflation)) {
      return true;
    } else {
      return false;
    }
  }
};

game.ino

cpp

1/*
2
3  game.ino
4  The Game app itself. A Breakout style game
5
6*/
7
8Rect blocks[25];  // Blocks
9
10Rect ball;
11bool ball_dir_x;  // Direction of ball in x axis: false=left, true=right
12bool ball_dir_y;  // Direction of ball in y axis: false=up, true=down
13bool lost;        // Have you lost the game?
14Rect paddle;
15
16uint16_t score;
17
18void game_start() {
19  randomSeed(analogRead(5) - millis());  // Set seed for random number
20  uint8_t x = 103;                       // Setup blocks
21  uint8_t y = 2;
22  for (uint8_t i = 0; i < 25; i++) {
23    blocks[i] = Rect(x, y, 3, 10);
24    blocks[i].simulated = true;
25    x += 5;
26    if (x > 123) {
27      x = 103;
28      y += 12;
29    }
30  }
31  ball = Rect(random(61, 65), random(30, 32), 2, 2);  // Setup ball, paddle & score
32  paddle = Rect(1, 4, 2, 8);
33  score = 0;
34}
35
36void game_loop() {
37  delay(300);  // Wait 300 ms, to prevent glitches
38  while (true) {
39    if (millis() % 50 < 4) { // Attempts to keep the frame rate down to 20 fps
40      left_current = digitalRead(LEFT);  // Read button states
41      right_current = digitalRead(RIGHT);
42      select_current = digitalRead(SELECT);
43      exit_current = digitalRead(EXIT);
44
45      //paddle.y = ball.y - 4; // For cheat mode
46
47      if (left_current == LOW) {  // If left button pressed - as long as button stays pressed, event executes
48        paddle.y -= 2;            // Move paddle down
49        if (paddle.y < 0) {
50          paddle.y = 0;
51        }
52      }
53      if (right_current == LOW) {  // If right button pressed - as long as button stays pressed, event executes
54        paddle.y += 2;             // Move paddle up
55        if (paddle.y + paddle.h > 63) {
56          paddle.y = 63 - paddle.h;
57        }
58      }
59      if (select_previous == HIGH && select_current == LOW) {  // If select button pressed
60        buttonPressBase();
61      }
62      if (exit_previous == HIGH && exit_current == LOW) {  // If exit button pressed
63        clicks++;
64        break;
65      }
66
67      for (int i = 0; i < difficulty; i++) {  // Update ball position
68        ball.x += ball_dir_x ? 1 : -1;
69        ball.y += ball_dir_y ? 1 : -1;
70
71        if (ball.x < 0) {  // If the ball is not caught by the paddle, you lose
72          disp.setCursor(5, 5);
73          disp.clearDisplay();
74          disp.print(F("YOU LOSE"));
75          disp.display();
76          tone(AUDIO, 100, 300);
77          delay(2000);
78
79          lost = true;
80          break; // Break out (no pun intended) of the for loop, so at higher difficulties, the message doesn't show multiple times
81        }
82
83        if (ball.y <= 0 || ball.y >= 63) {  // If the ball hits the top or bottom wall
84          ball_dir_y = !ball_dir_y;
85          tone(AUDIO, 200, 50);
86        }
87        if (ball.x >= 127) {   // If the ball hits the right wall
88          ball_dir_x = false;  // The ball should always bounce left
89          tone(AUDIO, 200, 50);
90        }
91
92        if (ball.touching(paddle, 1)) {  // If ball touches paddle
93          ball_dir_x = true;             // The ball should always bounce right
94          ball.x++;                      // Sometimes the ball seems to get "stuck" on the paddle for a bit, so this should help fix it
95          tone(AUDIO, 200, 50);
96        }
97        for (uint8_t j = 0; j < 25; j++) {  // Check if ball touches a block
98          if (blocks[j].simulated && blocks[j].touching(ball)) {
99            tone(AUDIO, 300 + (score * 4), 50);  // Pitch increases with score
100            score++;
101            blocks[j].simulated = false;
102            ball_dir_x = !ball_dir_x;
103          }
104        }
105      }
106
107      if (lost) {  // If you lost the game
108        lost = false;
109        break;
110      }
111
112      disp.clearDisplay();  // Refresh display
113
114      disp.drawRect(-1, 0, 129, 64, WHITE);  // Draw wall
115      for (uint8_t i = 0; i < 25; i++) {     // Draw blocks
116        if (blocks[i].simulated) {
117          disp.fillRect(blocks[i].x, blocks[i].y, blocks[i].w, blocks[i].h, WHITE);
118        }
119      }
120      disp.fillRect(ball.x, ball.y, ball.w, ball.h, WHITE);          // Draw ball
121      disp.fillRect(paddle.x, paddle.y, paddle.w, paddle.h, WHITE);  // Draw paddle
122
123      disp.setCursor(0, 53);  // Score
124      disp.print("Score:");
125      disp.print(score);
126
127      disp.display();
128
129      left_previous = left_current;  // Set previous button states
130      right_previous = right_current;
131      select_previous = select_current;
132      exit_previous = exit_current;
133    }
134  }
135}

/*

  game.ino
  The Game app itself. A Breakout style game

*/

Rect blocks[25];  // Blocks

Rect ball;
bool ball_dir_x;  // Direction of ball in x axis: false=left, true=right
bool ball_dir_y;  // Direction of ball in y axis: false=up, true=down
bool lost;        // Have you lost the game?
Rect paddle;

uint16_t score;

void game_start() {
  randomSeed(analogRead(5) - millis());  // Set seed for random number
  uint8_t x = 103;                       // Setup blocks
  uint8_t y = 2;
  for (uint8_t i = 0; i < 25; i++) {
    blocks[i] = Rect(x, y, 3, 10);
    blocks[i].simulated = true;
    x += 5;
    if (x > 123) {
      x = 103;
      y += 12;
    }
  }
  ball = Rect(random(61, 65), random(30, 32), 2, 2);  // Setup ball, paddle & score
  paddle = Rect(1, 4, 2, 8);
  score = 0;
}

void game_loop() {
  delay(300);  // Wait 300 ms, to prevent glitches
  while (true) {
    if (millis() % 50 < 4) { // Attempts to keep the frame rate down to 20 fps
      left_current = digitalRead(LEFT);  // Read button states
      right_current = digitalRead(RIGHT);
      select_current = digitalRead(SELECT);
      exit_current = digitalRead(EXIT);

      //paddle.y = ball.y - 4; // For cheat mode

      if (left_current == LOW) {  // If left button pressed - as long as button stays pressed, event executes
        paddle.y -= 2;            // Move paddle down
        if (paddle.y < 0) {
          paddle.y = 0;
        }
      }
      if (right_current == LOW) {  // If right button pressed - as long as button stays pressed, event executes
        paddle.y += 2;             // Move paddle up
        if (paddle.y + paddle.h > 63) {
          paddle.y = 63 - paddle.h;
        }
      }
      if (select_previous == HIGH && select_current == LOW) {  // If select button pressed
        buttonPressBase();
      }
      if (exit_previous == HIGH && exit_current == LOW) {  // If exit button pressed
        clicks++;
        break;
      }

      for (int i = 0; i < difficulty; i++) {  // Update ball position
        ball.x += ball_dir_x ? 1 : -1;
        ball.y += ball_dir_y ? 1 : -1;

        if (ball.x < 0) {  // If the ball is not caught by the paddle, you lose
          disp.setCursor(5, 5);
          disp.clearDisplay();
          disp.print(F("YOU LOSE"));
          disp.display();
          tone(AUDIO, 100, 300);
          delay(2000);

          lost = true;
          break; // Break out (no pun intended) of the for loop, so at higher difficulties, the message doesn't show multiple times
        }

        if (ball.y <= 0 || ball.y >= 63) {  // If the ball hits the top or bottom wall
          ball_dir_y = !ball_dir_y;
          tone(AUDIO, 200, 50);
        }
        if (ball.x >= 127) {   // If the ball hits the right wall
          ball_dir_x = false;  // The ball should always bounce left
          tone(AUDIO, 200, 50);
        }

        if (ball.touching(paddle, 1)) {  // If ball touches paddle
          ball_dir_x = true;             // The ball should always bounce right
          ball.x++;                      // Sometimes the ball seems to get "stuck" on the paddle for a bit, so this should help fix it
          tone(AUDIO, 200, 50);
        }
        for (uint8_t j = 0; j < 25; j++) {  // Check if ball touches a block
          if (blocks[j].simulated && blocks[j].touching(ball)) {
            tone(AUDIO, 300 + (score * 4), 50);  // Pitch increases with score
            score++;
            blocks[j].simulated = false;
            ball_dir_x = !ball_dir_x;
          }
        }
      }

      if (lost) {  // If you lost the game
        lost = false;
        break;
      }

      disp.clearDisplay();  // Refresh display

      disp.drawRect(-1, 0, 129, 64, WHITE);  // Draw wall
      for (uint8_t i = 0; i < 25; i++) {     // Draw blocks
        if (blocks[i].simulated) {
          disp.fillRect(blocks[i].x, blocks[i].y, blocks[i].w, blocks[i].h, WHITE);
        }
      }
      disp.fillRect(ball.x, ball.y, ball.w, ball.h, WHITE);          // Draw ball
      disp.fillRect(paddle.x, paddle.y, paddle.w, paddle.h, WHITE);  // Draw paddle

      disp.setCursor(0, 53);  // Score
      disp.print("Score:");
      disp.print(score);

      disp.display();

      left_previous = left_current;  // Set previous button states
      right_previous = right_current;
      select_previous = select_current;
      exit_previous = exit_current;
    }
  }
}

songs.ino

cpp

1/*
2
3  songs.ino
4  The songs in the Music app are defined here
5
6*/
7
8#include <pitches.h>
9
10// Basically the tone() function, but with delay. Speed is adjusted with the speed variable
11void play_note(int freq, int dur) {
12  tone(AUDIO, freq, dur / speed);
13  delay((dur / speed) * 1.1);
14}
15
16void c_major() {
17  if (audio) {
18    play_note(NOTE_C4, 250);
19    play_note(NOTE_D4, 250);
20    play_note(NOTE_E4, 250);
21    play_note(NOTE_F4, 250);
22    play_note(NOTE_G4, 250);
23    play_note(NOTE_A4, 250);
24    play_note(NOTE_B4, 250);
25    play_note(NOTE_C5, 500);
26
27
28    play_note(NOTE_C5, 250);
29    play_note(NOTE_B4, 250);
30    play_note(NOTE_A4, 250);
31    play_note(NOTE_G4, 250);
32    play_note(NOTE_F4, 250);
33    play_note(NOTE_E4, 250);
34    play_note(NOTE_D4, 250);
35    play_note(NOTE_C4, 500);
36  }
37}
38
39void twinkle_twinkle() {
40  if (audio) {
41    play_note(NOTE_C4, 500);
42    play_note(NOTE_C4, 500);
43    play_note(NOTE_G4, 500);
44    play_note(NOTE_G4, 500);
45    play_note(NOTE_A4, 500);
46    play_note(NOTE_A4, 500);
47    play_note(NOTE_G4, 1000);
48    
49    play_note(NOTE_F4, 500);
50    play_note(NOTE_F4, 500);
51    play_note(NOTE_E4, 500);
52    play_note(NOTE_E4, 500);
53    play_note(NOTE_D4, 500);
54    play_note(NOTE_D4, 500);
55    play_note(NOTE_C4, 1000);
56
57    for(int i = 0; i < 2; i++){
58      play_note(NOTE_G4, 500);
59      play_note(NOTE_G4, 500);
60      play_note(NOTE_F4, 500);
61      play_note(NOTE_F4, 500);
62      play_note(NOTE_E4, 500);
63      play_note(NOTE_E4, 500);
64      play_note(NOTE_D4, 1000);
65    }
66
67    play_note(NOTE_C4, 500);
68    play_note(NOTE_C4, 500);
69    play_note(NOTE_G4, 500);
70    play_note(NOTE_G4, 500);
71    play_note(NOTE_A4, 500);
72    play_note(NOTE_A4, 500);
73    play_note(NOTE_G4, 1000);
74    
75    play_note(NOTE_F4, 500);
76    play_note(NOTE_F4, 500);
77    play_note(NOTE_E4, 500);
78    play_note(NOTE_E4, 500);
79    play_note(NOTE_D4, 500);
80    play_note(NOTE_D4, 500);
81    play_note(NOTE_C4, 1000);
82  }
83}

/*

  songs.ino
  The songs in the Music app are defined here

*/

#include <pitches.h>

// Basically the tone() function, but with delay. Speed is adjusted with the speed variable
void play_note(int freq, int dur) {
  tone(AUDIO, freq, dur / speed);
  delay((dur / speed) * 1.1);
}

void c_major() {
  if (audio) {
    play_note(NOTE_C4, 250);
    play_note(NOTE_D4, 250);
    play_note(NOTE_E4, 250);
    play_note(NOTE_F4, 250);
    play_note(NOTE_G4, 250);
    play_note(NOTE_A4, 250);
    play_note(NOTE_B4, 250);
    play_note(NOTE_C5, 500);


    play_note(NOTE_C5, 250);
    play_note(NOTE_B4, 250);
    play_note(NOTE_A4, 250);
    play_note(NOTE_G4, 250);
    play_note(NOTE_F4, 250);
    play_note(NOTE_E4, 250);
    play_note(NOTE_D4, 250);
    play_note(NOTE_C4, 500);
  }
}

void twinkle_twinkle() {
  if (audio) {
    play_note(NOTE_C4, 500);
    play_note(NOTE_C4, 500);
    play_note(NOTE_G4, 500);
    play_note(NOTE_G4, 500);
    play_note(NOTE_A4, 500);
    play_note(NOTE_A4, 500);
    play_note(NOTE_G4, 1000);
    
    play_note(NOTE_F4, 500);
    play_note(NOTE_F4, 500);
    play_note(NOTE_E4, 500);
    play_note(NOTE_E4, 500);
    play_note(NOTE_D4, 500);
    play_note(NOTE_D4, 500);
    play_note(NOTE_C4, 1000);

    for(int i = 0; i < 2; i++){
      play_note(NOTE_G4, 500);
      play_note(NOTE_G4, 500);
      play_note(NOTE_F4, 500);
      play_note(NOTE_F4, 500);
      play_note(NOTE_E4, 500);
      play_note(NOTE_E4, 500);
      play_note(NOTE_D4, 1000);
    }

    play_note(NOTE_C4, 500);
    play_note(NOTE_C4, 500);
    play_note(NOTE_G4, 500);
    play_note(NOTE_G4, 500);
    play_note(NOTE_A4, 500);
    play_note(NOTE_A4, 500);
    play_note(NOTE_G4, 1000);
    
    play_note(NOTE_F4, 500);
    play_note(NOTE_F4, 500);
    play_note(NOTE_E4, 500);
    play_note(NOTE_E4, 500);
    play_note(NOTE_D4, 500);
    play_note(NOTE_D4, 500);
    play_note(NOTE_C4, 1000);
  }
}

images.ino

cpp

1/*
2
3  images.ino
4  Up to 4 images can be displayed here
5
6*/
7
8int8_t current_image; // The selected image
9
10void images_loop() {
11  delay(300);  // Slight delay to prevent glitches.
12  while (true) {
13    left_current = digitalRead(LEFT);  // Read buttons states
14    right_current = digitalRead(RIGHT);
15    select_current = digitalRead(SELECT);
16    exit_current = digitalRead(EXIT);
17
18    if (left_previous == HIGH && left_current == LOW) {  // If left button pressed
19      buttonPressBase();
20      current_image--;
21      if (current_image < 0) {
22        current_image = 3;
23      }
24    }
25    if (right_previous == HIGH && right_current == LOW) {  // If right button pressed
26      buttonPressBase();
27      current_image++;
28      if (current_image >= 4) {
29        current_image = 0;
30      }
31    }
32    if (select_previous == HIGH && select_current == LOW) {  // If select button pressed
33      buttonPressBase();
34      disp.clearDisplay();
35      disp.setCursor(0, 0);
36      switch (current_image) { // Images
37        case 0:
38          disp.drawBitmap(0, 0, arduino_image, 128, 64, WHITE); // Sample image
39          break;
40        case 1:
41          //disp.drawBitmap(0, 0, [Your Image Here], 128, 64, WHITE); // Place custom images here
42          break;
43        case 2:
44          //disp.drawBitmap(0, 0, [Your Image Here], 128, 64, WHITE);
45          break;
46        case 3:
47          //disp.drawBitmap(0, 0, [Your Image Here], 128, 64, WHITE);
48          break;
49      }
50      disp.display();
51      delay(5000); // Images are displayed for 5 seconds
52    }
53    if (exit_previous == HIGH && exit_current == LOW) {  // If exit button pressed
54      clicks++;
55      break;
56    }
57
58    disp.clearDisplay();  // Refresh display
59    disp.setCursor(0, 0);
60    disp.print(F("Pictures"));
61    for (int i = 0; i < 4; i++) {
62      disp.drawRect(0, i * 12 + 12, 128, 12, WHITE);
63      disp.setCursor(2, i * 12 + 14);
64      if (current_image == i) { // Adds a ">" to the start of the selected images name
65        disp.print(F(">"));
66      }
67      switch (i) { // Image names
68        case 0:
69          disp.print(F("Arduino"));
70          break;
71        case 1:
72          disp.print(F("")); // If you make custom images, make sure to give them names
73          break;
74        case 2:
75          disp.print(F(""));
76          break;
77        case 3:
78          disp.print(F(""));
79          break;
80      }
81    }
82    disp.display();
83
84    left_previous = left_current;  // Set previous states
85    right_previous = right_current;
86    select_previous = select_current;
87    exit_previous = exit_current;
88  }
89}

/*

  images.ino
  Up to 4 images can be displayed here

*/

int8_t current_image; // The selected image

void images_loop() {
  delay(300);  // Slight delay to prevent glitches.
  while (true) {
    left_current = digitalRead(LEFT);  // Read buttons states
    right_current = digitalRead(RIGHT);
    select_current = digitalRead(SELECT);
    exit_current = digitalRead(EXIT);

    if (left_previous == HIGH && left_current == LOW) {  // If left button pressed
      buttonPressBase();
      current_image--;
      if (current_image < 0) {
        current_image = 3;
      }
    }
    if (right_previous == HIGH && right_current == LOW) {  // If right button pressed
      buttonPressBase();
      current_image++;
      if (current_image >= 4) {
        current_image = 0;
      }
    }
    if (select_previous == HIGH && select_current == LOW) {  // If select button pressed
      buttonPressBase();
      disp.clearDisplay();
      disp.setCursor(0, 0);
      switch (current_image) { // Images
        case 0:
          disp.drawBitmap(0, 0, arduino_image, 128, 64, WHITE); // Sample image
          break;
        case 1:
          //disp.drawBitmap(0, 0, [Your Image Here], 128, 64, WHITE); // Place custom images here
          break;
        case 2:
          //disp.drawBitmap(0, 0, [Your Image Here], 128, 64, WHITE);
          break;
        case 3:
          //disp.drawBitmap(0, 0, [Your Image Here], 128, 64, WHITE);
          break;
      }
      disp.display();
      delay(5000); // Images are displayed for 5 seconds
    }
    if (exit_previous == HIGH && exit_current == LOW) {  // If exit button pressed
      clicks++;
      break;
    }

    disp.clearDisplay();  // Refresh display
    disp.setCursor(0, 0);
    disp.print(F("Pictures"));
    for (int i = 0; i < 4; i++) {
      disp.drawRect(0, i * 12 + 12, 128, 12, WHITE);
      disp.setCursor(2, i * 12 + 14);
      if (current_image == i) { // Adds a ">" to the start of the selected images name
        disp.print(F(">"));
      }
      switch (i) { // Image names
        case 0:
          disp.print(F("Arduino"));
          break;
        case 1:
          disp.print(F("")); // If you make custom images, make sure to give them names
          break;
        case 2:
          disp.print(F(""));
          break;
        case 3:
          disp.print(F(""));
          break;
      }
    }
    disp.display();

    left_previous = left_current;  // Set previous states
    right_previous = right_current;
    select_previous = select_current;
    exit_previous = exit_current;
  }
}

settings.ino

cpp

1/*
2
3  settings.ino
4  Flashlight, audio and beep can be turned on or off here
5
6*/
7
8int8_t current_setting;
9
10void settings_loop() {
11  delay(300);  // Slight delay to prevent glitches.
12  while (true) {
13    left_current = digitalRead(LEFT);  // Read button states
14    right_current = digitalRead(RIGHT);
15    select_current = digitalRead(SELECT);
16    exit_current = digitalRead(EXIT);
17
18    if (left_previous == HIGH && left_current == LOW) {  // If left button pressed
19      buttonPressBase();
20      current_setting--;
21      if (current_setting < 0) {
22        current_setting = 3;
23      }
24    }
25    if (right_previous == HIGH && right_current == LOW) {  // If right button pressed
26      buttonPressBase();
27      current_setting++;
28      if (current_setting >= 4) {
29        current_setting = 0;
30      }
31    }
32    if (select_previous == HIGH && select_current == LOW) {  // If select button pressed
33      buttonPressBase();
34      switch (current_setting) {
35        case 0:
36          flashlight = !flashlight;
37          break;
38        case 1:
39          audio = !audio;
40          break;
41        case 2:
42          beep = !beep;
43          break;
44        case 3:
45          booby_trap_mode = !booby_trap_mode;
46          break;
47      }
48    }
49    if (exit_previous == HIGH && exit_current == LOW) {  // If exit button pressed
50      clicks++;
51      break;
52    }
53
54    if (flashlight) {  // Flashlight
55      digitalWrite(FLASHLIGHT, HIGH);
56    } else {
57      digitalWrite(FLASHLIGHT, LOW);
58    }
59
60    disp.clearDisplay();  // Refresh display
61    disp.setCursor(0, 0);
62    disp.print(F("Settings"));
63    for (int i = 0; i < 4; i++) {
64      disp.setCursor(2, i * 12 + 14);
65      disp.drawRect(0, i * 12 + 12, 128, 12, WHITE);
66      if (current_setting == i) { // Adds a ">" to the start of the selected settings name
67        disp.print(F(">"));
68      }
69      switch (i) { // Setting names and states
70        case 0:
71          disp.print(F("Flashlight - "));
72          disp.print(flashlight ? "on" : "off");
73          break;
74        case 1:
75          disp.print(F("Audio - "));
76          disp.print(audio ? "on" : "off");
77          break;
78        case 2:
79          disp.print(F("Beep - "));
80          disp.print(beep ? "on" : "off");
81          break;
82        case 3:
83          disp.print(F("Booby trap - "));
84          disp.print(booby_trap_mode ? "on" : "off");
85          break;
86      }
87    }
88    disp.display();
89
90    left_previous = left_current;  // Set previous states
91    right_previous = right_current;
92    select_previous = select_current;
93    exit_previous = exit_current;
94  }
95}

/*

  settings.ino
  Flashlight, audio and beep can be turned on or off here

*/

int8_t current_setting;

void settings_loop() {
  delay(300);  // Slight delay to prevent glitches.
  while (true) {
    left_current = digitalRead(LEFT);  // Read button states
    right_current = digitalRead(RIGHT);
    select_current = digitalRead(SELECT);
    exit_current = digitalRead(EXIT);

    if (left_previous == HIGH && left_current == LOW) {  // If left button pressed
      buttonPressBase();
      current_setting--;
      if (current_setting < 0) {
        current_setting = 3;
      }
    }
    if (right_previous == HIGH && right_current == LOW) {  // If right button pressed
      buttonPressBase();
      current_setting++;
      if (current_setting >= 4) {
        current_setting = 0;
      }
    }
    if (select_previous == HIGH && select_current == LOW) {  // If select button pressed
      buttonPressBase();
      switch (current_setting) {
        case 0:
          flashlight = !flashlight;
          break;
        case 1:
          audio = !audio;
          break;
        case 2:
          beep = !beep;
          break;
        case 3:
          booby_trap_mode = !booby_trap_mode;
          break;
      }
    }
    if (exit_previous == HIGH && exit_current == LOW) {  // If exit button pressed
      clicks++;
      break;
    }

    if (flashlight) {  // Flashlight
      digitalWrite(FLASHLIGHT, HIGH);
    } else {
      digitalWrite(FLASHLIGHT, LOW);
    }

    disp.clearDisplay();  // Refresh display
    disp.setCursor(0, 0);
    disp.print(F("Settings"));
    for (int i = 0; i < 4; i++) {
      disp.setCursor(2, i * 12 + 14);
      disp.drawRect(0, i * 12 + 12, 128, 12, WHITE);
      if (current_setting == i) { // Adds a ">" to the start of the selected settings name
        disp.print(F(">"));
      }
      switch (i) { // Setting names and states
        case 0:
          disp.print(F("Flashlight - "));
          disp.print(flashlight ? "on" : "off");
          break;
        case 1:
          disp.print(F("Audio - "));
          disp.print(audio ? "on" : "off");
          break;
        case 2:
          disp.print(F("Beep - "));
          disp.print(beep ? "on" : "off");
          break;
        case 3:
          disp.print(F("Booby trap - "));
          disp.print(booby_trap_mode ? "on" : "off");
          break;
      }
    }
    disp.display();

    left_previous = left_current;  // Set previous states
    right_previous = right_current;
    select_previous = select_current;
    exit_previous = exit_current;
  }
}

stats.ino

cpp

1/*
2
3  stats.ino
4  millis() and amount of clicks are displayed here
5
6*/
7
8void stats_loop() {
9  delay(300);  // Slight delay to prevent glitches.
10  while (true) {
11    left_current = digitalRead(LEFT);  // Read button states
12    right_current = digitalRead(RIGHT);
13    select_current = digitalRead(SELECT);
14    exit_current = digitalRead(EXIT);
15
16    if (left_previous == HIGH && left_current == LOW) {  // If left button pressed
17      clicks++;
18    }
19    if (right_previous == HIGH && right_current == LOW) {  // If right button pressed
20      clicks++;
21    }
22    if (select_previous == HIGH && select_current == LOW) {  // If select button pressed
23      clicks++;
24    }
25    if (exit_previous == HIGH && exit_current == LOW) {  // If exit button pressed
26      clicks++;
27      break;
28    }
29
30    disp.clearDisplay();
31    disp.setCursor(0, 0);
32    disp.print(F("millis():"));
33    disp.println(millis());
34    disp.print(F("Clicks:"));
35    disp.println(clicks);
36    disp.display();
37
38    left_previous = left_current;  // Set previous states
39    right_previous = right_current;
40    select_previous = select_current;
41    exit_previous = exit_current;
42  }
43}

/*

  stats.ino
  millis() and amount of clicks are displayed here

*/

void stats_loop() {
  delay(300);  // Slight delay to prevent glitches.
  while (true) {
    left_current = digitalRead(LEFT);  // Read button states
    right_current = digitalRead(RIGHT);
    select_current = digitalRead(SELECT);
    exit_current = digitalRead(EXIT);

    if (left_previous == HIGH && left_current == LOW) {  // If left button pressed
      clicks++;
    }
    if (right_previous == HIGH && right_current == LOW) {  // If right button pressed
      clicks++;
    }
    if (select_previous == HIGH && select_current == LOW) {  // If select button pressed
      clicks++;
    }
    if (exit_previous == HIGH && exit_current == LOW) {  // If exit button pressed
      clicks++;
      break;
    }

    disp.clearDisplay();
    disp.setCursor(0, 0);
    disp.print(F("millis():"));
    disp.println(millis());
    disp.print(F("Clicks:"));
    disp.println(clicks);
    disp.display();

    left_previous = left_current;  // Set previous states
    right_previous = right_current;
    select_previous = select_current;
    exit_previous = exit_current;
  }
}

music.ino

cpp

1/*
2
3  music.ino
4  Plays 1 bit songs at 6 different speeds
5
6*/
7
8int8_t current_song;
9
10void music_loop() {
11  delay(300);  // Slight delay to prevent glitches.
12  while (true) {
13    left_current = digitalRead(LEFT);  // Read button states
14    right_current = digitalRead(RIGHT);
15    select_current = digitalRead(SELECT);
16    exit_current = digitalRead(EXIT);
17
18    if (left_previous == HIGH && left_current == LOW) {  // If left button pressed
19      buttonPressBase();
20      current_song--;
21      if (current_song < 0) {
22        current_song = 3;
23      }
24    }
25    if (right_previous == HIGH && right_current == LOW) {  // If right button pressed
26      buttonPressBase();
27      current_song++;
28      if (current_song >= 4) {
29        current_song = 0;
30      }
31    }
32    if (select_previous == HIGH && select_current == LOW) {  // If select button pressed
33      buttonPressBase();
34      switch (current_song) {
35        case 0:
36          c_major();
37          break;
38        case 1:
39          twinkle_twinkle();
40          break;
41        case 2:
42          // custom music here
43          break;
44        case 3: // Speed
45          speed *= 2;
46          if(speed > 32){
47            speed = 1;
48          }
49          break;
50      }
51    }
52    if (exit_previous == HIGH && exit_current == LOW) {  // If exit button pressed
53      clicks++;
54      break;
55    }
56
57    disp.clearDisplay();  // Refresh display
58    disp.setCursor(0, 0);
59    disp.print(F("Music"));
60    for (int i = 0; i < 4; i++) {
61      disp.drawRect(0, i * 12 + 12, 128, 12, WHITE);
62      disp.setCursor(2, i * 12 + 14);
63      if (current_song == i) { // Adds a ">" to the start of the selected songs name
64        disp.print(F(">"));
65      }
66      switch (i) {
67        case 0:
68          disp.print(F("C major scale"));
69          break;
70        case 1:
71          disp.print(F("Twinkle twinkle"));
72          break;
73        case 2:
74          // disp.print(F("Custom song name"));
75          break;
76        case 3:
77          disp.print(F("Speed: "));
78          disp.print(speed);
79          break;
80      }
81    }
82    disp.display();
83
84    left_previous = left_current;  // Set previous states
85    right_previous = right_current;
86    select_previous = select_current;
87    exit_previous = exit_current;
88  }
89}

/*

  music.ino
  Plays 1 bit songs at 6 different speeds

*/

int8_t current_song;

void music_loop() {
  delay(300);  // Slight delay to prevent glitches.
  while (true) {
    left_current = digitalRead(LEFT);  // Read button states
    right_current = digitalRead(RIGHT);
    select_current = digitalRead(SELECT);
    exit_current = digitalRead(EXIT);

    if (left_previous == HIGH && left_current == LOW) {  // If left button pressed
      buttonPressBase();
      current_song--;
      if (current_song < 0) {
        current_song = 3;
      }
    }
    if (right_previous == HIGH && right_current == LOW) {  // If right button pressed
      buttonPressBase();
      current_song++;
      if (current_song >= 4) {
        current_song = 0;
      }
    }
    if (select_previous == HIGH && select_current == LOW) {  // If select button pressed
      buttonPressBase();
      switch (current_song) {
        case 0:
          c_major();
          break;
        case 1:
          twinkle_twinkle();
          break;
        case 2:
          // custom music here
          break;
        case 3: // Speed
          speed *= 2;
          if(speed > 32){
            speed = 1;
          }
          break;
      }
    }
    if (exit_previous == HIGH && exit_current == LOW) {  // If exit button pressed
      clicks++;
      break;
    }

    disp.clearDisplay();  // Refresh display
    disp.setCursor(0, 0);
    disp.print(F("Music"));
    for (int i = 0; i < 4; i++) {
      disp.drawRect(0, i * 12 + 12, 128, 12, WHITE);
      disp.setCursor(2, i * 12 + 14);
      if (current_song == i) { // Adds a ">" to the start of the selected songs name
        disp.print(F(">"));
      }
      switch (i) {
        case 0:
          disp.print(F("C major scale"));
          break;
        case 1:
          disp.print(F("Twinkle twinkle"));
          break;
        case 2:
          // disp.print(F("Custom song name"));
          break;
        case 3:
          disp.print(F("Speed: "));
          disp.print(speed);
          break;
      }
    }
    disp.display();

    left_previous = left_current;  // Set previous states
    right_previous = right_current;
    select_previous = select_current;
    exit_previous = exit_current;
  }
}

temp_and_hmdt.ino

cpp

1/*
2
3  temp_and_hmdt.ino
4  Temperature & humidity from DHT11 sensor
5
6*/
7
8void th_loop() {
9  delay(300);  // Slight delay to prevent glitches.
10  while (true) {
11    left_current = digitalRead(LEFT);  // Read button states
12    right_current = digitalRead(RIGHT);
13    select_current = digitalRead(SELECT);
14    exit_current = digitalRead(EXIT);
15
16    if (left_previous == HIGH && left_current == LOW) {  // If left button pressed
17      clicks++;
18    }
19    if (right_previous == HIGH && right_current == LOW) {  // If right button pressed
20      clicks++;
21    }
22    if (select_previous == HIGH && select_current == LOW) {  // If select button pressed
23      clicks++;
24    }
25    if (exit_previous == HIGH && exit_current == LOW) {  // If exit button pressed
26      clicks++;
27      break;
28    }
29
30    float t = dht.readTemperature(); // Read temperature & humidity from the DHT11
31    float h = dht.readHumidity();
32
33    disp.clearDisplay();  // Refresh display
34    disp.setCursor(0, 0);
35
36    disp.println(F("Temperture: "));  // Temperature
37    disp.print(t, 1);
38    disp.println(F("oC"));
39    disp.drawRect(0, 16, 127, 5, WHITE); // A bar that shows the temprature. Range: 0-40oC
40    disp.fillRect(0, 16, (t / 40.0) * 127, 5, WHITE);
41
42    disp.println(F("\nHumidity: "));  // Humidity
43    disp.print(h, 1);
44    disp.println(F("%"));
45    disp.drawRect(0, 40, 127, 5, WHITE); // A bar that shows the humidity. Range: 0-100%
46    disp.fillRect(0, 40, (h / 100.0) * 127, 5, WHITE);
47
48    disp.display();
49
50    left_previous = left_current;  // Set previous states
51    right_previous = right_current;
52    select_previous = select_current;
53    exit_previous = exit_current;
54  }
55}

/*

  temp_and_hmdt.ino
  Temperature & humidity from DHT11 sensor

*/

void th_loop() {
  delay(300);  // Slight delay to prevent glitches.
  while (true) {
    left_current = digitalRead(LEFT);  // Read button states
    right_current = digitalRead(RIGHT);
    select_current = digitalRead(SELECT);
    exit_current = digitalRead(EXIT);

    if (left_previous == HIGH && left_current == LOW) {  // If left button pressed
      clicks++;
    }
    if (right_previous == HIGH && right_current == LOW) {  // If right button pressed
      clicks++;
    }
    if (select_previous == HIGH && select_current == LOW) {  // If select button pressed
      clicks++;
    }
    if (exit_previous == HIGH && exit_current == LOW) {  // If exit button pressed
      clicks++;
      break;
    }

    float t = dht.readTemperature(); // Read temperature & humidity from the DHT11
    float h = dht.readHumidity();

    disp.clearDisplay();  // Refresh display
    disp.setCursor(0, 0);

    disp.println(F("Temperture: "));  // Temperature
    disp.print(t, 1);
    disp.println(F("oC"));
    disp.drawRect(0, 16, 127, 5, WHITE); // A bar that shows the temprature. Range: 0-40oC
    disp.fillRect(0, 16, (t / 40.0) * 127, 5, WHITE);

    disp.println(F("\nHumidity: "));  // Humidity
    disp.print(h, 1);
    disp.println(F("%"));
    disp.drawRect(0, 40, 127, 5, WHITE); // A bar that shows the humidity. Range: 0-100%
    disp.fillRect(0, 40, (h / 100.0) * 127, 5, WHITE);

    disp.display();

    left_previous = left_current;  // Set previous states
    right_previous = right_current;
    select_previous = select_current;
    exit_previous = exit_current;
  }
}

calendar.ino

cpp

1/*
2
3  calendar.ino
4  A calendar for Sep-Dec 2023
5  If you are planning on making this, be sure to check back yearly for updates
6
7*/
8
9#define YEAR 2023  // As of app creation, it's 2023, and will be for 3 months longer
10
11#define SUN 0  // Days of week
12#define MON 1
13#define TUS 2
14#define WED 3
15#define THU 4
16#define FRI 5
17#define SAT 6
18
19#define FIRST_OF_SEP FRI  // Sep 1, 2023 was on a Friday
20#define FIRST_OF_OCT SUN  // Oct 1, 2023 was on a Sunday
21#define FIRST_OF_NOV WED  // Nov 1, 2023 was... you get it
22#define FIRST_OF_DEC FRI
23
24uint8_t displayed_month = 9; // The current month being displayed
25uint8_t current_month; // The month today is in. Do not get confused with displayed_month, see above
26uint8_t current_day; // The current day
27
28void draw_calendar(uint8_t first_of_month, uint8_t number_of_days){ // Draws the calendar (except for days of week)
29  for (int i = 0; i < number_of_days; i++) {
30    uint8_t x = ((i + first_of_month) % 7) * 18;  // Complex looking math for positions of the days
31    uint8_t y = 16 + ((i + first_of_month) / 7) * 8;
32    if (current_day == i + 1 && current_month == displayed_month) { // If day being displayed is today
33      disp.setTextColor(BLACK, WHITE);
34    } else {
35      disp.setTextColor(WHITE, BLACK);
36    }
37    disp.setCursor(x, y);
38    disp.print(i + 1);  // Because i is off by 1, we have to add 1 to i so it lines up with the days of the month
39  }
40}
41
42void calendar_loop() {
43  delay(300);  // Slight delay to prevent glitches.
44  while (true) {
45    left_current = digitalRead(LEFT);  // Read button states
46    right_current = digitalRead(RIGHT);
47    select_current = digitalRead(SELECT);
48    exit_current = digitalRead(EXIT);
49
50    if (left_previous == HIGH && left_current == LOW) {  // If left button pressed
51      buttonPressBase();
52      displayed_month --;
53      if(displayed_month < 9){
54        displayed_month = 9;
55      }
56    }
57    if (right_previous == HIGH && right_current == LOW) {  // If right button pressed
58      buttonPressBase();
59      displayed_month ++;
60      if(displayed_month > 12){
61        displayed_month = 12;
62      }
63    }
64    if (select_previous == HIGH && select_current == LOW) {  // If select button pressed
65      clicks++;
66    }
67    if (exit_previous == HIGH && exit_current == LOW) {  // If exit button pressed
68      clicks++;
69      break;
70    }
71
72    DateTime now = rtc.now(); // Get data about the month and day from RTC
73    current_day = now.day();
74    current_month = now.month();
75
76    disp.clearDisplay();  // Refresh display
77    disp.setCursor(0, 0);
78    switch(displayed_month){ // Convert month number to 3 letter abbreviation
79      case 8:
80        disp.print(F("Aug"));
81        break;
82      case 9:
83        disp.print(F("Sep"));
84        break;
85      case 10:
86        disp.print(F("Oct"));
87        break;
88      case 11:
89        disp.print(F("Nov"));
90        break;
91      case 12:
92        disp.print(F("Dec"));
93        break;
94    }
95    disp.print(" ");
96    disp.println(YEAR);
97    disp.println(F("Su Mo Tu We Th Fr Sa"));  // The days of the week
98
99    switch(displayed_month){ // Draw calender
100      case 9:
101        draw_calendar(FIRST_OF_SEP, 30);
102        break;
103      case 10:
104        draw_calendar(FIRST_OF_OCT, 31);
105        break;
106      case 11:
107        draw_calendar(FIRST_OF_NOV, 30);
108        break;
109      case 12:
110        draw_calendar(FIRST_OF_DEC, 31);
111        break;
112    }
113
114    disp.display();
115
116    left_previous = left_current;  // Set previous button states
117    right_previous = right_current;
118    select_previous = select_current;
119    exit_previous = exit_current;
120  }
121}

/*

  calendar.ino
  A calendar for Sep-Dec 2023
  If you are planning on making this, be sure to check back yearly for updates

*/

#define YEAR 2023  // As of app creation, it's 2023, and will be for 3 months longer

#define SUN 0  // Days of week
#define MON 1
#define TUS 2
#define WED 3
#define THU 4
#define FRI 5
#define SAT 6

#define FIRST_OF_SEP FRI  // Sep 1, 2023 was on a Friday
#define FIRST_OF_OCT SUN  // Oct 1, 2023 was on a Sunday
#define FIRST_OF_NOV WED  // Nov 1, 2023 was... you get it
#define FIRST_OF_DEC FRI

uint8_t displayed_month = 9; // The current month being displayed
uint8_t current_month; // The month today is in. Do not get confused with displayed_month, see above
uint8_t current_day; // The current day

void draw_calendar(uint8_t first_of_month, uint8_t number_of_days){ // Draws the calendar (except for days of week)
  for (int i = 0; i < number_of_days; i++) {
    uint8_t x = ((i + first_of_month) % 7) * 18;  // Complex looking math for positions of the days
    uint8_t y = 16 + ((i + first_of_month) / 7) * 8;
    if (current_day == i + 1 && current_month == displayed_month) { // If day being displayed is today
      disp.setTextColor(BLACK, WHITE);
    } else {
      disp.setTextColor(WHITE, BLACK);
    }
    disp.setCursor(x, y);
    disp.print(i + 1);  // Because i is off by 1, we have to add 1 to i so it lines up with the days of the month
  }
}

void calendar_loop() {
  delay(300);  // Slight delay to prevent glitches.
  while (true) {
    left_current = digitalRead(LEFT);  // Read button states
    right_current = digitalRead(RIGHT);
    select_current = digitalRead(SELECT);
    exit_current = digitalRead(EXIT);

    if (left_previous == HIGH && left_current == LOW) {  // If left button pressed
      buttonPressBase();
      displayed_month --;
      if(displayed_month < 9){
        displayed_month = 9;
      }
    }
    if (right_previous == HIGH && right_current == LOW) {  // If right button pressed
      buttonPressBase();
      displayed_month ++;
      if(displayed_month > 12){
        displayed_month = 12;
      }
    }
    if (select_previous == HIGH && select_current == LOW) {  // If select button pressed
      clicks++;
    }
    if (exit_previous == HIGH && exit_current == LOW) {  // If exit button pressed
      clicks++;
      break;
    }

    DateTime now = rtc.now(); // Get data about the month and day from RTC
    current_day = now.day();
    current_month = now.month();

    disp.clearDisplay();  // Refresh display
    disp.setCursor(0, 0);
    switch(displayed_month){ // Convert month number to 3 letter abbreviation
      case 8:
        disp.print(F("Aug"));
        break;
      case 9:
        disp.print(F("Sep"));
        break;
      case 10:
        disp.print(F("Oct"));
        break;
      case 11:
        disp.print(F("Nov"));
        break;
      case 12:
        disp.print(F("Dec"));
        break;
    }
    disp.print(" ");
    disp.println(YEAR);
    disp.println(F("Su Mo Tu We Th Fr Sa"));  // The days of the week

    switch(displayed_month){ // Draw calender
      case 9:
        draw_calendar(FIRST_OF_SEP, 30);
        break;
      case 10:
        draw_calendar(FIRST_OF_OCT, 31);
        break;
      case 11:
        draw_calendar(FIRST_OF_NOV, 30);
        break;
      case 12:
        draw_calendar(FIRST_OF_DEC, 31);
        break;
    }

    disp.display();

    left_previous = left_current;  // Set previous button states
    right_previous = right_current;
    select_previous = select_current;
    exit_previous = exit_current;
  }
}

game_main_menu.ino

cpp

1/*
2
3  game_main_menu.ino
4  Main menu for the Game app
5
6*/
7
8void game_main_menu() { // Main menu of the game
9  delay(300); // Wait 300 ms, to prevent glitches
10  while (true) {
11    left_current = digitalRead(LEFT);  // Read button states
12    right_current = digitalRead(RIGHT);
13    select_current = digitalRead(SELECT);
14    exit_current = digitalRead(EXIT);
15
16    if (left_previous == HIGH && left_current == LOW) {  // If left button pressed
17      buttonPressBase();
18      difficulty--;
19      if(difficulty < 1){
20        difficulty = 1;
21      }
22    }
23    if (right_previous == HIGH && right_current == LOW) {  // If right button pressed
24      buttonPressBase();
25      difficulty++;
26      if(difficulty > 5){
27        difficulty = 5;
28      }
29    }
30    if (select_previous == HIGH && select_current == LOW) {  // If select button pressed
31      buttonPressBase();
32      game_start(); // Unlike most apps, this game needs initial setup
33      game_loop();
34    }
35    if (exit_previous == HIGH && exit_current == LOW) {  // If exit button pressed
36      clicks++; 
37      break;
38    }
39
40    disp.clearDisplay();  // Refresh display
41    disp.setCursor(0, 0);
42    disp.print(F("Difficulty: "));
43    disp.print(difficulty);
44    disp.fillRect(0, 16, 34, 12, WHITE); // Start button
45    disp.setCursor(2, 18);
46    disp.setTextColor(BLACK);
47    disp.print(F("Start"));
48    disp.setTextColor(WHITE);
49    disp.display();
50
51    left_previous = left_current;  // Set previous button states
52    right_previous = right_current;
53    select_previous = select_current;
54    exit_previous = exit_current;
55  }
56}

/*

  game_main_menu.ino
  Main menu for the Game app

*/

void game_main_menu() { // Main menu of the game
  delay(300); // Wait 300 ms, to prevent glitches
  while (true) {
    left_current = digitalRead(LEFT);  // Read button states
    right_current = digitalRead(RIGHT);
    select_current = digitalRead(SELECT);
    exit_current = digitalRead(EXIT);

    if (left_previous == HIGH && left_current == LOW) {  // If left button pressed
      buttonPressBase();
      difficulty--;
      if(difficulty < 1){
        difficulty = 1;
      }
    }
    if (right_previous == HIGH && right_current == LOW) {  // If right button pressed
      buttonPressBase();
      difficulty++;
      if(difficulty > 5){
        difficulty = 5;
      }
    }
    if (select_previous == HIGH && select_current == LOW) {  // If select button pressed
      buttonPressBase();
      game_start(); // Unlike most apps, this game needs initial setup
      game_loop();
    }
    if (exit_previous == HIGH && exit_current == LOW) {  // If exit button pressed
      clicks++; 
      break;
    }

    disp.clearDisplay();  // Refresh display
    disp.setCursor(0, 0);
    disp.print(F("Difficulty: "));
    disp.print(difficulty);
    disp.fillRect(0, 16, 34, 12, WHITE); // Start button
    disp.setCursor(2, 18);
    disp.setTextColor(BLACK);
    disp.print(F("Start"));
    disp.setTextColor(WHITE);
    disp.display();

    left_previous = left_current;  // Set previous button states
    right_previous = right_current;
    select_previous = select_current;
    exit_previous = exit_current;
  }
}

images.h

cpp

1/*
2
3  images.h
4  Define images here. There is a sample image of the Arduino Mega too.
5
6*/
7
8const unsigned char arduino_image[] PROGMEM = {
9  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
10  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01, 0x40, 0x84, 0x00, 0x00, 0x00,
11  0x00, 0x00, 0x00, 0x00, 0xb0, 0x10, 0x03, 0x56, 0xd3, 0xdb, 0x44, 0x04, 0x96, 0x10, 0x00, 0x00,
12  0x00, 0x00, 0x00, 0x04, 0x90, 0x92, 0x42, 0x52, 0x52, 0x49, 0x01, 0x84, 0x10, 0x00, 0x00, 0x00,
13  0x00, 0x00, 0x00, 0x04, 0x97, 0xff, 0x7f, 0xde, 0xff, 0xff, 0xc0, 0x20, 0x4f, 0xf0, 0x24, 0x00,
14  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
15  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x20, 0x00, 0x00, 0x30, 0x00, 0x00, 0x03, 0x14, 0x00,
16  0x00, 0x03, 0xff, 0x92, 0x00, 0x00, 0x00, 0x20, 0x00, 0x00, 0x30, 0x00, 0x00, 0x03, 0x00, 0x00,
17  0x01, 0x3f, 0xf0, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x30, 0x00, 0x00, 0x00, 0x00, 0x00,
18  0x3f, 0xff, 0xf0, 0x16, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x30, 0x00, 0x00, 0x02, 0x02, 0x00,
19  0x3f, 0xff, 0xf0, 0x60, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x30, 0x00, 0x00, 0x1f, 0x00, 0x00,
20  0x3f, 0xff, 0xf8, 0x70, 0x00, 0x00, 0x00, 0x10, 0x00, 0x00, 0x20, 0x00, 0x00, 0x3f, 0x00, 0x00,
21  0x3f, 0xff, 0xf8, 0x60, 0x00, 0x00, 0x00, 0x10, 0x00, 0x00, 0x20, 0x00, 0x00, 0x2f, 0x00, 0x00,
22  0x3f, 0xff, 0xf7, 0x70, 0x00, 0x00, 0x00, 0x10, 0x00, 0x00, 0xf4, 0x00, 0x00, 0x7f, 0x00, 0x00,
23  0x7f, 0xff, 0xf2, 0x60, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xf4, 0x00, 0x00, 0x7e, 0x02, 0x00,
24  0x7f, 0xff, 0xe1, 0xe0, 0x00, 0x00, 0x00, 0x78, 0x00, 0x00, 0xf6, 0x00, 0x00, 0x7f, 0x80, 0x00,
25  0x7f, 0xff, 0xe9, 0xe0, 0x20, 0x60, 0x00, 0x10, 0x00, 0x01, 0xf6, 0x00, 0x00, 0x7f, 0x00, 0x00,
26  0x7f, 0xff, 0xe1, 0x63, 0x60, 0xe0, 0x00, 0x00, 0x00, 0x07, 0xff, 0xf8, 0x00, 0x7b, 0x80, 0x00,
27  0x7f, 0xff, 0xe9, 0xfb, 0x60, 0xe1, 0x00, 0x00, 0x00, 0x1f, 0xff, 0xff, 0xff, 0xfb, 0x80, 0x00,
28  0x7f, 0xff, 0xef, 0x5f, 0x60, 0xfa, 0x00, 0x00, 0x00, 0x38, 0x21, 0x40, 0x00, 0x13, 0x80, 0x00,
29  0xff, 0xff, 0xe1, 0xcb, 0xe7, 0xe4, 0x00, 0x78, 0x00, 0x00, 0x00, 0xc3, 0x18, 0x1b, 0x80, 0x00,
30  0x00, 0x00, 0x01, 0xc3, 0xee, 0xe0, 0x00, 0x4f, 0x53, 0x80, 0x02, 0x47, 0x98, 0x10, 0x00, 0x00,
31  0x00, 0x00, 0x09, 0xc7, 0xf7, 0xf0, 0x00, 0x9f, 0xff, 0xc0, 0x00, 0x17, 0xbc, 0x01, 0x80, 0x00,
32  0x00, 0x00, 0x01, 0xcf, 0xfe, 0xd8, 0x00, 0xff, 0xff, 0xe0, 0x80, 0xcf, 0x80, 0x09, 0x80, 0x40,
33  0x00, 0x00, 0x0b, 0xcf, 0xff, 0xe8, 0x03, 0xff, 0xff, 0xf8, 0x00, 0x03, 0x80, 0x08, 0x00, 0x00,
34  0x00, 0x00, 0x02, 0x5f, 0xff, 0xe8, 0x03, 0xff, 0xff, 0xf8, 0xb0, 0xff, 0xfe, 0x0b, 0xc0, 0x20,
35  0x00, 0x00, 0x00, 0x07, 0xff, 0xe8, 0x07, 0xff, 0xff, 0xfc, 0xfc, 0xbf, 0xe0, 0x09, 0x00, 0x00,
36  0x00, 0x03, 0x03, 0xc0, 0x19, 0xe8, 0x07, 0xff, 0xff, 0xf9, 0xb5, 0xff, 0xfc, 0x09, 0xc0, 0x20,
37  0x00, 0x00, 0x03, 0xe1, 0xfd, 0xf8, 0x0f, 0xff, 0xff, 0xf9, 0xb5, 0xff, 0xff, 0x0d, 0xf0, 0x00,
38  0x00, 0x00, 0x03, 0xff, 0xff, 0x3c, 0x04, 0xff, 0xff, 0xf8, 0xf5, 0xff, 0xff, 0x0e, 0x30, 0x00,
39  0x00, 0x07, 0x80, 0xff, 0xfa, 0x3c, 0x01, 0xff, 0xff, 0xf8, 0x90, 0xff, 0xff, 0x0d, 0xf8, 0x00,
40  0x00, 0x00, 0x00, 0xff, 0xf9, 0xdc, 0x0f, 0xff, 0xff, 0xf8, 0xb4, 0xbf, 0xc0, 0x08, 0xf0, 0x00,
41  0x00, 0x06, 0x0d, 0xff, 0xfd, 0xd8, 0x1f, 0xff, 0xff, 0xfe, 0xb4, 0xff, 0xc0, 0x04, 0x10, 0x00,
42  0x00, 0x07, 0x21, 0xff, 0x9d, 0xf8, 0x3a, 0xff, 0xff, 0xff, 0xa0, 0x40, 0x7c, 0x06, 0xf0, 0x00,
43  0x00, 0x07, 0x09, 0x80, 0x1e, 0x38, 0x30, 0xff, 0xff, 0xff, 0x00, 0x00, 0x38, 0x04, 0x10, 0x00,
44  0x00, 0x0f, 0x00, 0x40, 0x00, 0x18, 0x09, 0xff, 0xff, 0xfe, 0x02, 0x35, 0x80, 0x04, 0x70, 0x10,
45  0x00, 0x00, 0x00, 0x00, 0x00, 0x18, 0x3f, 0xff, 0xff, 0xf8, 0x03, 0xb1, 0x80, 0x04, 0xf8, 0x10,
46  0x00, 0x00, 0x00, 0x01, 0x83, 0xd8, 0x2c, 0xdf, 0xff, 0x8a, 0x07, 0xf8, 0x7c, 0x04, 0x10, 0x00,
47  0x00, 0x00, 0x80, 0x39, 0x83, 0x50, 0x01, 0x00, 0x00, 0x00, 0x00, 0x9f, 0xff, 0x04, 0xf8, 0x00,
48  0x00, 0x01, 0x8f, 0x31, 0x80, 0x00, 0x30, 0x1f, 0xff, 0xc0, 0x00, 0x93, 0x00, 0x04, 0x68, 0x00,
49  0x00, 0x07, 0x86, 0x00, 0x00, 0x00, 0x00, 0x15, 0x91, 0x42, 0x00, 0x00, 0x00, 0x04, 0x08, 0x00,
50  0x00, 0x07, 0x8e, 0xcc, 0x03, 0xc0, 0x04, 0xc0, 0x00, 0x00, 0xf3, 0xf3, 0xf0, 0x04, 0x68, 0x08,
51  0x38, 0x07, 0x8e, 0x8f, 0xe2, 0x40, 0x00, 0x00, 0x00, 0x00, 0xf3, 0xff, 0xf8, 0x07, 0x78, 0x00,
52  0x38, 0x0f, 0x84, 0x9f, 0x43, 0xc1, 0xd8, 0x00, 0x00, 0x00, 0xfb, 0xfe, 0xd8, 0x03, 0x08, 0x00,
53  0x38, 0x0f, 0x0e, 0x1e, 0x03, 0xc3, 0xdf, 0x00, 0x00, 0x00, 0xff, 0xff, 0xf8, 0x03, 0x7e, 0x08,
54  0x33, 0xff, 0xc2, 0x34, 0x1f, 0xc2, 0x1f, 0x00, 0x00, 0x00, 0xfd, 0x99, 0x00, 0x03, 0x38, 0x00,
55  0x37, 0xff, 0xcc, 0x7c, 0x7f, 0xe3, 0xdb, 0x00, 0x00, 0x00, 0xbe, 0xbf, 0xbc, 0x03, 0xfc, 0x00,
56  0x37, 0xff, 0xc8, 0xfe, 0xff, 0x03, 0xca, 0x00, 0x00, 0x00, 0xff, 0xbf, 0xfc, 0x03, 0xfe, 0x00,
57  0x70, 0x00, 0x61, 0xff, 0xff, 0x01, 0xc0, 0x00, 0x00, 0x00, 0xff, 0xff, 0xbc, 0x03, 0xb4, 0x00,
58  0x20, 0x00, 0x21, 0xff, 0xff, 0x80, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x03, 0xf4, 0x00,
59  0x70, 0x00, 0x1f, 0xff, 0xff, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x03, 0xf6, 0x00,
60  0x10, 0x00, 0x1f, 0x71, 0x81, 0x80, 0x80, 0x00, 0x00, 0x00, 0x00, 0x00, 0xff, 0xfe, 0x34, 0x00,
61  0x00, 0x00, 0x1f, 0x01, 0x80, 0x34, 0xff, 0xfc, 0x3f, 0xff, 0xe1, 0xfe, 0xca, 0x01, 0xf4, 0x0c,
62  0x00, 0x00, 0x07, 0x00, 0x80, 0x76, 0xdf, 0xf8, 0x7f, 0xce, 0x00, 0x00, 0x19, 0x7d, 0xb4, 0x00,
63  0x00, 0x00, 0x06, 0x00, 0x80, 0xfe, 0xbf, 0xfc, 0x37, 0x88, 0x00, 0x06, 0x5b, 0x7c, 0x00, 0x1e,
64  0x00, 0x00, 0x04, 0x00, 0x80, 0x00, 0x00, 0x20, 0x60, 0x00, 0x00, 0x04, 0x00, 0x00, 0x00, 0x14,
65  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x0e,
66  0x00, 0x00, 0x00, 0x00, 0xc6, 0x49, 0x66, 0x8c, 0x26, 0x59, 0xb6, 0x20, 0x00, 0x40, 0x00, 0x00,
67  0x00, 0x00, 0x00, 0x08, 0x10, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
68  0x00, 0x01, 0xe0, 0x18, 0x10, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
69  0x00, 0x01, 0xc0, 0x08, 0x10, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
70  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
71  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
72  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00
73};

/*

  images.h
  Define images here. There is a sample image of the Arduino Mega too.

*/

const unsigned char arduino_image[] PROGMEM = {
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dart91

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