Project Details

/* hello guys this code is designed by Sagar saini,  youtube channel- sagar networks 
 *  follow us on hackster using this link
 * If the code not work, try to update IR libraries or download new and compatible library from my website.
 * link: https://drive.google.com/file/d/14ooV9b64H_579zfkCLHSwh-WmZjaBadH/view?usp=sharing  this code is 4 channel relay/ but work fine on this 3 channel relay pcb.
 * To decode the data of any universal ir remote follow this link:
https://www.hackster.io/sainisagar7294/arduino-based-ir-remote-decoder-ac67c4
 * I am always available on Instagram so please check out me there: saini_sagar_7294
 */

#include <IRremote.h>
const int RECV_PIN=8;
IRrecv irrecv(RECV_PIN);
decode_results results;

#define Relay1 12  // Load1 Pin Out
#define Relay2 11  // Load2 Pin Out
#define Relay3 10  // Load3 Pin Out
#define Relay4 9  // Load4 Pin Out

int load1, load2, load3, load4, power;


void setup()
{
  Serial.begin(9600);

  pinMode(Relay1, OUTPUT); // declare as output for Load1 Pin Relay1     
  pinMode(Relay2, OUTPUT); // declare as output for Load2 Pin Relay2 
  pinMode(Relay3, OUTPUT); // declare as output for Load3 Pin Relay3  
  pinMode(Relay4, OUTPUT); // declare as output for Load4 Pin Relay4 
  
 digitalWrite(Relay1, 0); // Turn Off Load1
 digitalWrite(Relay2, 1); // Turn Off Load2
 digitalWrite(Relay3, 1); // Turn Off Load3
 digitalWrite(Relay4, 1); // Turn Off Load4
  
  irrecv.enableIRIn(); // Start the receiver
  irrecv.blink13(true);
}
void loop() {
 

 if (IrReceiver.decode()) 
  {
    Serial.println(IrReceiver.decodedIRData.decodedRawData, HEX);


     if(IrReceiver.decodedIRData.decodedRawData==0xED127F80){ // For Load1 ON ( change the hex value ED127F80 to your remote value)
load1 = 0;  
}
else if(IrReceiver.decodedIRData.decodedRawData==0xE51A7F80){ // For Load1 Off 
load1 = 1; 
}

else if(IrReceiver.decodedIRData.decodedRawData==0xFE017F80){ // For Load2 On 
load2 = 0; 
}
else if(IrReceiver.decodedIRData.decodedRawData==0xFD027F80){ // For Load2 Off 
load2 = 1;  
}

else if(IrReceiver.decodedIRData.decodedRawData==0xFB047F80){ // For Load3 On 
load3 = 0;  
}
else if(IrReceiver.decodedIRData.decodedRawData==0xFA057F80){ // For Load3 Off 
load3 = 1;  
}

else if(IrReceiver.decodedIRData.decodedRawData==0xF8077F80){ // For Load4 On 
load4 = 0;   
}
else if(IrReceiver.decodedIRData.decodedRawData==0xF7087F80){ // For Load4 Off 
load4 = 1;
}
else if(IrReceiver.decodedIRData.decodedRawData==0xE11E7F80){ // For Load4 Off 
load1=0;
load2=0;
load3=0;
load4=0;
}
else if(IrReceiver.decodedIRData.decodedRawData==0xFC037F80){ // For Load4 Off 
load1=1;
load2=1;
load3=1;
load4=1;
}
 irrecv.resume(); // Receive the next value
 delay(100);
 }

if(power==1){  
 digitalWrite(Relay1, 1); // Turn Off Load1
 digitalWrite(Relay2, 1); // Turn Off Load2
 digitalWrite(Relay3, 1); // Turn Off Load3
 digitalWrite(Relay4, 1); // Turn Off Load4
}else{
digitalWrite(Relay1, load1); 
digitalWrite(Relay2, load2); 
digitalWrite(Relay3, load3); 
digitalWrite(Relay4, load4);
}
  
delay(500);  
}

Implementation:

We can put this circuit in our house mains electric board to control the electrical appliances. Here is the best example of this:

We can connect different loads to different channels and control this with TV remote, there is no need of any type of internet, Wi-Fi or Bluetooth connection.

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Circuit modifications and updates:

In future updates we will make this circuit more compact and increase the microcontroller speed- just changing it with STM version. We will make an EEPROM function in code and maybe, will come back with new PCB design having Bluetooth or Wi-Fi connectivity.

Here is the remote decoder project using Arduino.

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