Remote Control Light Bulb using a Relay

Controlling a high voltage light bulb using a relay module with an Arduino

Jul 5, 2020

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3 respects

Devices & Components

Arduino Uno Rev3

IR receiver (generic)

Relay (generic)

Jumper wires (generic)

Project description

Code

Code snippet #1

text

1#include <IRremote.h>
2int relayPin = 2;
3int irPin = 7;
4IRrecv irRecive(irPin);
5decode_results   results;
6
7void setup() {
8  Serial.begin(9600);
9  irRecive.enableIRIn();
10  pinMode(relayPin,   OUTPUT);
11}
12
13void loop() {
14
15  if (irRecive.decode(&results)) {
16
17    Serial.print("Received   value = ");
18    Serial.println(results.value);
19    Serial.print("Received code   = ");
20    Serial.println(results.decode_type);
21    Serial.print("Received bits   = ");
22    Serial.println(results.bits);
23    
24    switch (results.value) {
25       case 16754775:
26        Serial.println("LIGHTS ON");
27        digitalWrite(relayPin,   HIGH);
28        break;
29
30      case 16769055:
31        Serial.println("LIGHTS   OFF");
32        digitalWrite(relayPin, LOW);
33        break;
34
35      default:
36         Serial.println("case: default");
37        delay(1000);
38    }
39    
40     irRecive.resume();
41  }
42
43}
44

#include <IRremote.h>
int relayPin = 2;
int irPin = 7;
IRrecv irRecive(irPin);
decode_results   results;

void setup() {
  Serial.begin(9600);
  irRecive.enableIRIn();
  pinMode(relayPin,   OUTPUT);
}

void loop() {

  if (irRecive.decode(&results)) {

    Serial.print("Received   value = ");
    Serial.println(results.value);
    Serial.print("Received code   = ");
    Serial.println(results.decode_type);
    Serial.print("Received bits   = ");
    Serial.println(results.bits);
    
    switch (results.value) {
       case 16754775:
        Serial.println("LIGHTS ON");
        digitalWrite(relayPin,   HIGH);
        break;

      case 16769055:
        Serial.println("LIGHTS   OFF");
        digitalWrite(relayPin, LOW);
        break;

      default:
         Serial.println("case: default");
        delay(1000);
    }
    
     irRecive.resume();
  }

}

Code snippet #2

text

1#include <IRremote.h>
2int relayPin = 2;
3int irPin = 7;
4IRrecv irRecive(irPin);
5decode_results  results;
6
7void setup() {
8  Serial.begin(9600);
9  irRecive.enableIRIn();
10  pinMode(relayPin,  OUTPUT);
11}
12
13void loop() {
14
15  if (irRecive.decode(&results)) {
16
17    Serial.print("Received  value = ");
18    Serial.println(results.value);
19    Serial.print("Received code  = ");
20    Serial.println(results.decode_type);
21    Serial.print("Received bits  = ");
22    Serial.println(results.bits);
23    
24    switch (results.value) {
25      case 16754775:
26        Serial.println("LIGHTS ON");
27        digitalWrite(relayPin,  HIGH);
28        break;
29
30      case 16769055:
31        Serial.println("LIGHTS  OFF");
32        digitalWrite(relayPin, LOW);
33        break;
34
35      default:
36        Serial.println("case: default");
37        delay(1000);
38    }
39    
40    irRecive.resume();
41  }
42
43}
44

#include <IRremote.h>
int relayPin = 2;
int irPin = 7;
IRrecv irRecive(irPin);
decode_results  results;

void setup() {
  Serial.begin(9600);
  irRecive.enableIRIn();
  pinMode(relayPin,  OUTPUT);
}

void loop() {

  if (irRecive.decode(&results)) {

    Serial.print("Received  value = ");
    Serial.println(results.value);
    Serial.print("Received code  = ");
    Serial.println(results.decode_type);
    Serial.print("Received bits  = ");
    Serial.println(results.bits);
    
    switch (results.value) {
      case 16754775:
        Serial.println("LIGHTS ON");
        digitalWrite(relayPin,  HIGH);
        break;

      case 16769055:
        Serial.println("LIGHTS  OFF");
        digitalWrite(relayPin, LOW);
        break;

      default:
        Serial.println("case: default");
        delay(1000);
    }
    
    irRecive.resume();
  }

}

Code snippet #1

text

1#include <IRremote.h>
2int relayPin = 2;
3int irPin = 7;
4IRrecv irRecive(irPin);
5decode_results  results;
6
7void setup() {
8  Serial.begin(9600);
9  irRecive.enableIRIn();
10  pinMode(relayPin,  OUTPUT);
11}
12
13void loop() {
14
15  if (irRecive.decode(&results)) {
16
17    Serial.print("Received  value = ");
18    Serial.println(results.value);
19    Serial.print("Received code  = ");
20    Serial.println(results.decode_type);
21    Serial.print("Received bits  = ");
22    Serial.println(results.bits);
23    
24    switch (results.value) {
25      case 16754775:
26        Serial.println("LIGHTS ON");
27        digitalWrite(relayPin,  HIGH);
28        break;
29
30      case 16769055:
31        Serial.println("LIGHTS  OFF");
32        digitalWrite(relayPin, LOW);
33        break;
34
35      default:
36        Serial.println("case: default");
37        delay(1000);
38    }
39    
40    irRecive.resume();
41  }
42
43}
44

#include <IRremote.h>
int relayPin = 2;
int irPin = 7;
IRrecv irRecive(irPin);
decode_results  results;

void setup() {
  Serial.begin(9600);
  irRecive.enableIRIn();
  pinMode(relayPin,  OUTPUT);
}

void loop() {

  if (irRecive.decode(&results)) {

    Serial.print("Received  value = ");
    Serial.println(results.value);
    Serial.print("Received code  = ");
    Serial.println(results.decode_type);
    Serial.print("Received bits  = ");
    Serial.println(results.bits);
    
    switch (results.value) {
      case 16754775:
        Serial.println("LIGHTS ON");
        digitalWrite(relayPin,  HIGH);
        break;

      case 16769055:
        Serial.println("LIGHTS  OFF");
        digitalWrite(relayPin, LOW);
        break;

      default:
        Serial.println("case: default");
        delay(1000);
    }
    
    irRecive.resume();
  }

}

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Circuit

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