Simple Arduino Hulda Clark ZAPPER with Timer function

1//Arduino ZAPPER
2
3#include <Arduino.h>
4#include <U8g2lib.h>
5
6//U8G2_ST7565_NHD_C12864_1_4W_SW_SPI u8g2(U8G2_R0, 10, 9, 12, 11, U8X8_PIN_NONE);
7//U8G2_SSD1306_128X64_NONAME_2_SW_I2C u8g2 (U8G2_R0, A5, A4);
8U8G2_ST7920_128X64_1_SW_SPI u8g2(U8G2_R0, /* clock=*/ 13, /* data=*/ 11, /* CS=*/ 10, /* reset=*/ 8);
9byte inPin1 = 5; // digital input sw-1
10byte outPin1 = 7; // digital output sw-3
11byte time_healing = 7; //time healingenia (30kHz generation)
12char time_healing_str[3];
13byte time_healing1;
14byte time_pause = 20; // break time until next healing in min.
15byte time_pause1;
16char time_pause_str[3];
17byte cycle = 4;
18char cycle_str[3];
19byte interruptPin = 2;
20byte ZapperPin = 4;
21char* message;
22
23void setup() {
24   u8g2.begin();
25   pinMode(inPin1, INPUT_PULLUP); //setting the pin as a digital input
26   pinMode(outPin1, OUTPUT); //output to the squeak
27   pinMode(13, OUTPUT);
28   digitalWrite (13, LOW); //turn on LCD backlight
29   pinMode(8, OUTPUT);
30   digitalWrite (8, LOW); // giving mass to power the LCD
31   pinMode(ZapperPin, OUTPUT); //declaration of Zapper output port
32   digitalWrite (ZapperPin, LOW);
33   Serial.begin(9600);
34}
35
36void loop() {
37   //waiting for Start
38   cycle = 0;
39   digitalWrite(inPin1, HIGH);
40   do {
41     message = "  PRESS START";
42     DisplayLCD();
43   } while (digitalRead(inPin1) == HIGH);
44   //Getting started
45   cycle = 3; beep(); Work();
46   beep(); Pause();
47   cycle = 2; beep(); Work();
48   beep(); Pause();
49   cycle = 1; beep(); Work();
50   beep(); delay(50); beep(); delay(50); beep();
51   time_healing1 = 0; time_pause1 = 0;
52}
53
54void Work() {
55   time_healing1 = time_healing + 1;
56   message = "HEALING";
57   for (byte j = 1; j <= time_healing; j++) {
58     time_healing1--;
59     strcpy(time_healing_str, u8x8_u8toa(time_healing1, 2)); // convert healing1 to a string with 2 digits
60     DisplayLCD();
61     Generate_30kHz();
62   }
63   time_healing1 = 0;
64}
65
66void Pause() { // generate pause
67   time_pause1 = time_pause + 1;
68   message = "PAUSE";
69   byte s, m, th;
70   for (th = 0; th < time_pause; th++) {
71     time_pause1--;
72     strcpy(time_pause_str, u8x8_u8toa(time_pause1, 2)); // convert pause to string with 2 digits
73     DisplayLCD();
74     for (s = 0; s < 60; s++) {
75       delay (1000);
76     }
77   }
78   time_pause1 = 0;
79}
80
81void Generate_30kHz() {
82   for (byte z = 1; z < 60; z++ ) {
83     for (int i = 1; i < 30000; i++) {
84       for (byte j = 1; j < 67; j++) {
85         PORTD = B00010000;
86       }
87
88       for (byte j = 1; j<66; j++) {
89         PORTD = B00000000;
90       }
91     }
92   }
93}
94
95void beep() {
96   digitalWrite(outPin1, HIGH);
97   delay(100);
98   digitalWrite(outPin1, LOW);
99}
100
101void DisplayLCD(){
102   strcpy(cycle_str, u8x8_u8toa(cycle, 1)); // convert cycle to string with 1 digit
103   u8g2.setFont(u8g2_font_6x12_tr);
104   u8g2.firstPage();
105   do {
106     u8g2.drawBox(0, 0, 128, 10); // draw a black background
107     u8g2.setDrawColor(2); // select the writing mode
108     u8g2.setFontMode(1); // white on black
109     u8g2.drawFrame(0,11,128,53);
110     u8g2.drawRFrame(2,13,124,49,10);
111     u8g2.drawStr(40, 8, " ZAPPER");
112     u8g2.setDrawColor(1); //return to writing mode
113     u8g2.setFontMode(1); //black on white
114     if (cycle == 0) {u8g2.drawStr(20, 40, message);}
115     if (cycle > 0) {
116     //if (time_healing1 > 0 or time_pause1 > 0) {
117       u8g2.setFont(u8g2_font_6x12_tr);
118       u8g2.drawStr(15, 50, message);
119       u8g2.drawStr(95, 50, "min.");
120       u8g2.setFont(u8g2_font_9x18_tn);
121       if (time_pause1 > 0 ) { u8g2.drawStr(70, 50, time_pause_str);}
122       if (time_healing1 > 0 ) {u8g2.drawStr(70, 50, time_healing_str);}
123       u8g2.drawStr(55, 30, cycle_str);
124     }
125   } while ( u8g2.nextPage() );
126}