IR Remote control LED countdown timer

Start the LED counter with the remote control for a 60 or 90 second countdown. The timer will beep to start and beep at the designated time.

Jan 20, 2021

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music

remote control

Components and supplies

5 mm LED: Yellow

Resistor 220 ohm

5 mm LED: Red

Arduino Mega 2560

5 mm LED: Green

SparkFun 7-Segment Serial Display - Red

IR receiver (generic)

Speaker: 3W, 4 ohms

Project description

Code

KungFuTimerNEC.ino

c_cpp

1/*
2  Kung Fu Timer 2021
3*/
4#define NEC 1
5//#define SONY 2
6#include   <IRLibAll.h>
7#include <Wire.h>
8#include <pitches.h>
9#include <Adafruit_LEDBackpack.h>
10
11
12//   I2C address of the display.  Stick with the default address of 0x70
13// unless   you've changed the address jumpers on the back of the display.
14#define DISPLAY_ADDRESS   0x70
15
16// Define sensor pin
17IRrecv myReceiver(5);//create the receiver,   use pin 5.
18
19
20#include <IRLib_P01_NEC.h>
21IRdecode myDecoder;
22
23//   Define LED pin constants
24const int LEDRED = 4;
25const int LEDYEL = 7;
26const   int LEDGRN = 8;
27
28
29//define musical tone
30#define NOTE_C 262 //Hz
31
32//Create   display objects.  These are global variables that
33//can be accessed from both   the setup and loop function below.
34Adafruit_7segment matrix = Adafruit_7segment();
35
36//Set   up buzzer
37const int BUZZER_PIN = 12;
38
39// Remember if the colon was drawn   on the display so it can be blinked
40// on and off every second.
41bool blinkColon   = false;
42
43//declare tot_Time
44int tot_Time = 60;
45
46int seconds;
47int   now;
48
49void setup()
50{
51
52  // Enable the IR Receiver
53  myReceiver.enableIRIn();//start   receiving
54
55  // Set LED pins as Outputs
56  pinMode(LEDRED, OUTPUT);
57   pinMode(LEDYEL, OUTPUT);
58  pinMode(LEDGRN, OUTPUT);
59
60  pinMode(BUZZER_PIN,   OUTPUT);
61
62  //Setup Serial port
63  Serial.begin(115200);
64  matrix.begin(0x70);
65
66   Serial.println("IR Remote Timer Adjustable");
67
68}
69
70
71
72
73void   countDown()
74{
75
76  //turn off LEDs
77  digitalWrite(LEDGRN, LOW);
78  digitalWrite(LEDRED,   LOW);
79  digitalWrite(LEDYEL, LOW);
80
81  tone(BUZZER_PIN, 262, 2000);
82   digitalWrite(LEDGRN, HIGH);
83  noTone(BUZZER_PIN);
84
85  int now = tot_Time;
86   matrix.print(now);
87  matrix.writeDisplay();
88
89  for (int i = 1; i <=  tot_Time;   i++)
90  {
91    int now = tot_Time - i;
92    int displayValue = now;
93    Serial.print("Seconds   = ");
94    Serial.println(now);
95
96    //Write to 7 segment display
97    matrix.print(now);
98     matrix.writeDisplay();
99    delay(1000);
100
101    //Control LEDs
102    if   (now <= 5 && now >= 2)
103      digitalWrite(LEDYEL, HIGH);
104    else
105      digitalWrite(LEDYEL,   LOW);
106
107    if (now <= 90 && now >= 5)
108      digitalWrite(LEDGRN, HIGH);
109     else
110      digitalWrite(LEDGRN, LOW);
111
112    if (now <= 2 && now >= 1)
113       digitalWrite (LEDRED, HIGH);
114    else
115      digitalWrite (LEDRED, LOW);
116
117
118     //Sound buzzer if now = 1;
119    if (now == 1)
120    {
121
122      tone(BUZZER_PIN,   262, 1000);
123      digitalWrite(LEDRED, HIGH);
124      delay(2000);
125      noTone(BUZZER_PIN);
126
127     }
128    else
129      noTone(BUZZER_PIN);
130
131  }
132
133  delay(1000);
134
135
136   Serial.print("tot_Time = ");
137  Serial.println(tot_Time);
138
139}
140
141
142void   loop()
143{
144
145  if (myReceiver.getResults()) {
146    //Continue looping until   it returns true
147    myDecoder.decode();// decode it
148    myDecoder.dumpResults(false);//now   print results
149
150
151    switch (myDecoder.value)
152
153      //NEC 1
154
155     case 0xFFE21D: //lft
156    { myReceiver.disableIRIn();      //stop receiver
157       tot_Time = 90;
158      matrix.writeDisplay();
159      matrix.print(90);
160       // Turn on LED
161      digitalWrite(LEDRED, HIGH);
162      digitalWrite(LEDGRN,   LOW);
163      digitalWrite(LEDYEL, LOW);
164      Serial.println("case 0xFFE21D");
165
166       break;
167
168
169
170    case 0xFF02FD: //#Rt
171      // Turn on LED
172       myReceiver.disableIRIn();      //stop receiver
173      tot_Time = 60;
174       matrix.writeDisplay();
175      matrix.print(60);
176      digitalWrite(LEDYEL,   HIGH);
177      digitalWrite(LEDRED, LOW);
178      digitalWrite(LEDGRN, LOW);
179
180       Serial.println("case 0xFF02FD");
181      break;
182
183
184    case 0xFF609F:   //up
185      // Turn on LED
186      myReceiver.disableIRIn();      //stop receiver
187
188       Serial.println("case FF609F");
189      digitalWrite(LEDGRN, HIGH);
190       digitalWrite(LEDYEL, LOW);
191      digitalWrite(LEDRED, LOW);
192      delay(500);
193       for (int k = 0; k < 4; k++)
194      {
195        digitalWrite(LEDGRN, LOW);
196         delay(500);
197        digitalWrite(LEDGRN, HIGH);
198        delay(500);
199       }
200
201      digitalWrite(LEDGRN, HIGH);
202
203
204      tone(BUZZER_PIN,   262, 1000);
205      delay(2000);
206      noTone(BUZZER_PIN);
207      digitalWrite(LEDGRN,   LOW);
208      countDown();
209      break;
210
211    }
212
213  }
214  myReceiver.enableIRIn();   //restart the receiver
215}
216

/*
  Kung Fu Timer 2021
*/
#define NEC 1
//#define SONY 2
#include   <IRLibAll.h>
#include <Wire.h>
#include <pitches.h>
#include <Adafruit_LEDBackpack.h>


//   I2C address of the display.  Stick with the default address of 0x70
// unless   you've changed the address jumpers on the back of the display.
#define DISPLAY_ADDRESS   0x70

// Define sensor pin
IRrecv myReceiver(5);//create the receiver,   use pin 5.


#include <IRLib_P01_NEC.h>
IRdecode myDecoder;

//   Define LED pin constants
const int LEDRED = 4;
const int LEDYEL = 7;
const   int LEDGRN = 8;


//define musical tone
#define NOTE_C 262 //Hz

//Create   display objects.  These are global variables that
//can be accessed from both   the setup and loop function below.
Adafruit_7segment matrix = Adafruit_7segment();

//Set   up buzzer
const int BUZZER_PIN = 12;

// Remember if the colon was drawn   on the display so it can be blinked
// on and off every second.
bool blinkColon   = false;

//declare tot_Time
int tot_Time = 60;

int seconds;
int   now;

void setup()
{

  // Enable the IR Receiver
  myReceiver.enableIRIn();//start   receiving

  // Set LED pins as Outputs
  pinMode(LEDRED, OUTPUT);
   pinMode(LEDYEL, OUTPUT);
  pinMode(LEDGRN, OUTPUT);

  pinMode(BUZZER_PIN,   OUTPUT);

  //Setup Serial port
  Serial.begin(115200);
  matrix.begin(0x70);

   Serial.println("IR Remote Timer Adjustable");

}




void   countDown()
{

  //turn off LEDs
  digitalWrite(LEDGRN, LOW);
  digitalWrite(LEDRED,   LOW);
  digitalWrite(LEDYEL, LOW);

  tone(BUZZER_PIN, 262, 2000);
   digitalWrite(LEDGRN, HIGH);
  noTone(BUZZER_PIN);

  int now = tot_Time;
   matrix.print(now);
  matrix.writeDisplay();

  for (int i = 1; i <=  tot_Time;   i++)
  {
    int now = tot_Time - i;
    int displayValue = now;
    Serial.print("Seconds   = ");
    Serial.println(now);

    //Write to 7 segment display
    matrix.print(now);
     matrix.writeDisplay();
    delay(1000);

    //Control LEDs
    if   (now <= 5 && now >= 2)
      digitalWrite(LEDYEL, HIGH);
    else
      digitalWrite(LEDYEL,   LOW);

    if (now <= 90 && now >= 5)
      digitalWrite(LEDGRN, HIGH);
     else
      digitalWrite(LEDGRN, LOW);

    if (now <= 2 && now >= 1)
       digitalWrite (LEDRED, HIGH);
    else
      digitalWrite (LEDRED, LOW);


     //Sound buzzer if now = 1;
    if (now == 1)
    {

      tone(BUZZER_PIN,   262, 1000);
      digitalWrite(LEDRED, HIGH);
      delay(2000);
      noTone(BUZZER_PIN);

     }
    else
      noTone(BUZZER_PIN);

  }

  delay(1000);


   Serial.print("tot_Time = ");
  Serial.println(tot_Time);

}


void   loop()
{

  if (myReceiver.getResults()) {
    //Continue looping until   it returns true
    myDecoder.decode();// decode it
    myDecoder.dumpResults(false);//now   print results


    switch (myDecoder.value)

      //NEC 1

     case 0xFFE21D: //lft
    { myReceiver.disableIRIn();      //stop receiver
       tot_Time = 90;
      matrix.writeDisplay();
      matrix.print(90);
       // Turn on LED
      digitalWrite(LEDRED, HIGH);
      digitalWrite(LEDGRN,   LOW);
      digitalWrite(LEDYEL, LOW);
      Serial.println("case 0xFFE21D");

       break;



    case 0xFF02FD: //#Rt
      // Turn on LED
       myReceiver.disableIRIn();      //stop receiver
      tot_Time = 60;
       matrix.writeDisplay();
      matrix.print(60);
      digitalWrite(LEDYEL,   HIGH);
      digitalWrite(LEDRED, LOW);
      digitalWrite(LEDGRN, LOW);

       Serial.println("case 0xFF02FD");
      break;


    case 0xFF609F:   //up
      // Turn on LED
      myReceiver.disableIRIn();      //stop receiver

       Serial.println("case FF609F");
      digitalWrite(LEDGRN, HIGH);
       digitalWrite(LEDYEL, LOW);
      digitalWrite(LEDRED, LOW);
      delay(500);
       for (int k = 0; k < 4; k++)
      {
        digitalWrite(LEDGRN, LOW);
         delay(500);
        digitalWrite(LEDGRN, HIGH);
        delay(500);
       }

      digitalWrite(LEDGRN, HIGH);


      tone(BUZZER_PIN,   262, 1000);
      delay(2000);
      noTone(BUZZER_PIN);
      digitalWrite(LEDGRN,   LOW);
      countDown();
      break;

    }

  }
  myReceiver.enableIRIn();   //restart the receiver
}

KungFuTimerNEC.ino

c_cpp

1/*
2  Kung Fu Timer 2021
3*/
4#define NEC 1
5//#define SONY 2
6#include  <IRLibAll.h>
7#include <Wire.h>
8#include <pitches.h>
9#include <Adafruit_LEDBackpack.h>
10
11
12//  I2C address of the display.  Stick with the default address of 0x70
13// unless  you've changed the address jumpers on the back of the display.
14#define DISPLAY_ADDRESS  0x70
15
16// Define sensor pin
17IRrecv myReceiver(5);//create the receiver,  use pin 5.
18
19
20#include <IRLib_P01_NEC.h>
21IRdecode myDecoder;
22
23//  Define LED pin constants
24const int LEDRED = 4;
25const int LEDYEL = 7;
26const  int LEDGRN = 8;
27
28
29//define musical tone
30#define NOTE_C 262 //Hz
31
32//Create  display objects.  These are global variables that
33//can be accessed from both  the setup and loop function below.
34Adafruit_7segment matrix = Adafruit_7segment();
35
36//Set  up buzzer
37const int BUZZER_PIN = 12;
38
39// Remember if the colon was drawn  on the display so it can be blinked
40// on and off every second.
41bool blinkColon  = false;
42
43//declare tot_Time
44int tot_Time = 60;
45
46int seconds;
47int  now;
48
49void setup()
50{
51
52  // Enable the IR Receiver
53  myReceiver.enableIRIn();//start  receiving
54
55  // Set LED pins as Outputs
56  pinMode(LEDRED, OUTPUT);
57  pinMode(LEDYEL, OUTPUT);
58  pinMode(LEDGRN, OUTPUT);
59
60  pinMode(BUZZER_PIN,  OUTPUT);
61
62  //Setup Serial port
63  Serial.begin(115200);
64  matrix.begin(0x70);
65
66  Serial.println("IR Remote Timer Adjustable");
67
68}
69
70
71
72
73void  countDown()
74{
75
76  //turn off LEDs
77  digitalWrite(LEDGRN, LOW);
78  digitalWrite(LEDRED,  LOW);
79  digitalWrite(LEDYEL, LOW);
80
81  tone(BUZZER_PIN, 262, 2000);
82  digitalWrite(LEDGRN, HIGH);
83  noTone(BUZZER_PIN);
84
85  int now = tot_Time;
86  matrix.print(now);
87  matrix.writeDisplay();
88
89  for (int i = 1; i <=  tot_Time;  i++)
90  {
91    int now = tot_Time - i;
92    int displayValue = now;
93    Serial.print("Seconds  = ");
94    Serial.println(now);
95
96    //Write to 7 segment display
97    matrix.print(now);
98    matrix.writeDisplay();
99    delay(1000);
100
101    //Control LEDs
102    if  (now <= 5 && now >= 2)
103      digitalWrite(LEDYEL, HIGH);
104    else
105      digitalWrite(LEDYEL,  LOW);
106
107    if (now <= 90 && now >= 5)
108      digitalWrite(LEDGRN, HIGH);
109    else
110      digitalWrite(LEDGRN, LOW);
111
112    if (now <= 2 && now >= 1)
113      digitalWrite (LEDRED, HIGH);
114    else
115      digitalWrite (LEDRED, LOW);
116
117
118    //Sound buzzer if now = 1;
119    if (now == 1)
120    {
121
122      tone(BUZZER_PIN,  262, 1000);
123      digitalWrite(LEDRED, HIGH);
124      delay(2000);
125      noTone(BUZZER_PIN);
126
127    }
128    else
129      noTone(BUZZER_PIN);
130
131  }
132
133  delay(1000);
134
135
136  Serial.print("tot_Time = ");
137  Serial.println(tot_Time);
138
139}
140
141
142void  loop()
143{
144
145  if (myReceiver.getResults()) {
146    //Continue looping until  it returns true
147    myDecoder.decode();// decode it
148    myDecoder.dumpResults(false);//now  print results
149
150
151    switch (myDecoder.value)
152
153      //NEC 1
154
155    case 0xFFE21D: //lft
156    { myReceiver.disableIRIn();      //stop receiver
157      tot_Time = 90;
158      matrix.writeDisplay();
159      matrix.print(90);
160      // Turn on LED
161      digitalWrite(LEDRED, HIGH);
162      digitalWrite(LEDGRN,  LOW);
163      digitalWrite(LEDYEL, LOW);
164      Serial.println("case 0xFFE21D");
165
166      break;
167
168
169
170    case 0xFF02FD: //#Rt
171      // Turn on LED
172      myReceiver.disableIRIn();      //stop receiver
173      tot_Time = 60;
174      matrix.writeDisplay();
175      matrix.print(60);
176      digitalWrite(LEDYEL,  HIGH);
177      digitalWrite(LEDRED, LOW);
178      digitalWrite(LEDGRN, LOW);
179
180      Serial.println("case 0xFF02FD");
181      break;
182
183
184    case 0xFF609F:  //up
185      // Turn on LED
186      myReceiver.disableIRIn();      //stop receiver
187
188      Serial.println("case FF609F");
189      digitalWrite(LEDGRN, HIGH);
190      digitalWrite(LEDYEL, LOW);
191      digitalWrite(LEDRED, LOW);
192      delay(500);
193      for (int k = 0; k < 4; k++)
194      {
195        digitalWrite(LEDGRN, LOW);
196        delay(500);
197        digitalWrite(LEDGRN, HIGH);
198        delay(500);
199      }
200
201      digitalWrite(LEDGRN, HIGH);
202
203
204      tone(BUZZER_PIN,  262, 1000);
205      delay(2000);
206      noTone(BUZZER_PIN);
207      digitalWrite(LEDGRN,  LOW);
208      countDown();
209      break;
210
211    }
212
213  }
214  myReceiver.enableIRIn();  //restart the receiver
215}
216

/*
  Kung Fu Timer 2021
*/
#define NEC 1
//#define SONY 2
#include  <IRLibAll.h>
#include <Wire.h>
#include <pitches.h>
#include <Adafruit_LEDBackpack.h>


//  I2C address of the display.  Stick with the default address of 0x70
// unless  you've changed the address jumpers on the back of the display.
#define DISPLAY_ADDRESS  0x70

// Define sensor pin
IRrecv myReceiver(5);//create the receiver,  use pin 5.


#include <IRLib_P01_NEC.h>
IRdecode myDecoder;

//  Define LED pin constants
const int LEDRED = 4;
const int LEDYEL = 7;
const  int LEDGRN = 8;


//define musical tone
#define NOTE_C 262 //Hz

//Create  display objects.  These are global variables that
//can be accessed from both  the setup and loop function below.
Adafruit_7segment matrix = Adafruit_7segment();

//Set  up buzzer
const int BUZZER_PIN = 12;

// Remember if the colon was drawn  on the display so it can be blinked
// on and off every second.
bool blinkColon  = false;

//declare tot_Time
int tot_Time = 60;

int seconds;
int  now;

void setup()
{

  // Enable the IR Receiver
  myReceiver.enableIRIn();//start  receiving

  // Set LED pins as Outputs
  pinMode(LEDRED, OUTPUT);
  pinMode(LEDYEL, OUTPUT);
  pinMode(LEDGRN, OUTPUT);

  pinMode(BUZZER_PIN,  OUTPUT);

  //Setup Serial port
  Serial.begin(115200);
  matrix.begin(0x70);

  Serial.println("IR Remote Timer Adjustable");

}




void  countDown()
{

  //turn off LEDs
  digitalWrite(LEDGRN, LOW);
  digitalWrite(LEDRED,  LOW);
  digitalWrite(LEDYEL, LOW);

  tone(BUZZER_PIN, 262, 2000);
  digitalWrite(LEDGRN, HIGH);
  noTone(BUZZER_PIN);

  int now = tot_Time;
  matrix.print(now);
  matrix.writeDisplay();

  for (int i = 1; i <=  tot_Time;  i++)
  {
    int now = tot_Time - i;
    int displayValue = now;
    Serial.print("Seconds  = ");
    Serial.println(now);

    //Write to 7 segment display
    matrix.print(now);
    matrix.writeDisplay();
    delay(1000);

    //Control LEDs
    if  (now <= 5 && now >= 2)
      digitalWrite(LEDYEL, HIGH);
    else
      digitalWrite(LEDYEL,  LOW);

    if (now <= 90 && now >= 5)
      digitalWrite(LEDGRN, HIGH);
    else
      digitalWrite(LEDGRN, LOW);

    if (now <= 2 && now >= 1)
      digitalWrite (LEDRED, HIGH);
    else
      digitalWrite (LEDRED, LOW);


    //Sound buzzer if now = 1;
    if (now == 1)
    {

      tone(BUZZER_PIN,  262, 1000);
      digitalWrite(LEDRED, HIGH);
      delay(2000);
      noTone(BUZZER_PIN);

    }
    else
      noTone(BUZZER_PIN);

  }

  delay(1000);


  Serial.print("tot_Time = ");
  Serial.println(tot_Time);

}


void  loop()
{

  if (myReceiver.getResults()) {
    //Continue looping until  it returns true
    myDecoder.decode();// decode it
    myDecoder.dumpResults(false);//now  print results


    switch (myDecoder.value)

      //NEC 1

    case 0xFFE21D: //lft
    { myReceiver.disableIRIn();      //stop receiver
      tot_Time = 90;
      matrix.writeDisplay();
      matrix.print(90);
      // Turn on LED
      digitalWrite(LEDRED, HIGH);
      digitalWrite(LEDGRN,  LOW);
      digitalWrite(LEDYEL, LOW);
      Serial.println("case 0xFFE21D");

      break;



    case 0xFF02FD: //#Rt
      // Turn on LED
      myReceiver.disableIRIn();      //stop receiver
      tot_Time = 60;
      matrix.writeDisplay();
      matrix.print(60);
      digitalWrite(LEDYEL,  HIGH);
      digitalWrite(LEDRED, LOW);
      digitalWrite(LEDGRN, LOW);

      Serial.println("case 0xFF02FD");
      break;


    case 0xFF609F:  //up
      // Turn on LED
      myReceiver.disableIRIn();      //stop receiver

      Serial.println("case FF609F");
      digitalWrite(LEDGRN, HIGH);
      digitalWrite(LEDYEL, LOW);
      digitalWrite(LEDRED, LOW);
      delay(500);
      for (int k = 0; k < 4; k++)
      {
        digitalWrite(LEDGRN, LOW);
        delay(500);
        digitalWrite(LEDGRN, HIGH);
        delay(500);
      }

      digitalWrite(LEDGRN, HIGH);


      tone(BUZZER_PIN,  262, 1000);
      delay(2000);
      noTone(BUZZER_PIN);
      digitalWrite(LEDGRN,  LOW);
      countDown();
      break;

    }

  }
  myReceiver.enableIRIn();  //restart the receiver
}

Downloadable files

IR Remote Timer

It is an adjustable IR Remote Timer.

IR Remote Timer

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