Arduino IRremote demo | Zane's IceBox

IoT

Publish Date: 2019-12-28

Test environment

Mac OS

Arduino UNO

Arudino 1.8.9

Function

The project is one of the IoT End-to-end system, in order to control an infrared remote send signal form Rpi

UNO reads instructions from the Raspberry Pi serial port, and then send and receive to control the light turn on or turn off

Rpi will send the “XY” code, X is device, Y is command

PS

To prevent the infrared from being properly oriented, three signals were sent
Infrared coding has no scientific basis, just to test the demo
There is no define of Case 2 to Case 5
IRremote.h can be installed in “Arudino - tools - manage library”

/*
  IRsend Test of IoT demo
  Date:2019/12/28

  Receive command from Rpi and test the IRremote demo.
  PIN3 is defined in head file.
  IRsend PIN can only be defined in head file.
  Decode message,example:recData="XY",device = X, command = Y.
*/
#include <IRremote.h> 

IRsend irsend; //Create IRsent objects
int device;
int command;
String recData = "";


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

     while (Serial.available() > 0)  
    {
        recData += char(Serial.read());
        delay(2);
    }
    //Serial.println(recData);

    if (recData.length() > 0)
    {
        int temp = recData.toInt();
        command = temp % 10;
        device = (temp - command) / 10;

        //Switch command case
        if(device == 1 )
        {
        switch (command) {
      case 0:
        //Send command three times to make sure it can be received
        irsend.sendNEC(0xFF6897, 32);
        delay(100);
        break;

        irsend.sendNEC(0xFF6897, 32);
        delay(100);
        break;

        irsend.sendNEC(0xFF6897, 32);
        delay(100);
        break;

      case 1:
        irsend.sendNEC(0xFF02FD, 32);
        delay(100);
        break;

        irsend.sendNEC(0xFF02FD, 32);
        delay(100);
        break;

        irsend.sendNEC(0xFF02FD, 32);
        delay(100);
        break;

      case 2:
        digitalWrite(3, HIGH);
        break;
      case 3:
        digitalWrite(4, HIGH);
        break;
      case 4:
        digitalWrite(5, HIGH);
        break;
      case 5:
        digitalWrite(6, HIGH);
        break;
          }
        }

        //Reset received data
        recData = "";
    }
}

/*
  IRreceive Test of IoT demo
  Date:2019/12/28

  Receive signal from IRsend to turn on or turn off the light.
*/
#include <IRremote.h>
IRrecv irrecv(6); //Create IRreceive objects and choose the IRreceive pin
decode_results results; //Create the object of decode result
int LED_PIN=4;

void setup()
{
        irrecv.enableIRIn(); //Star reveiving
        Serial.begin(9600);
        pinMode(LED_PIN,OUTPUT);
}
void loop()
{
        if (irrecv.decode(&results))
        {
               Serial.println(results.value, HEX); //Output the received signal value in hexadecimal
               Serial.println();
               //Decode

               if(results.value == 0xFF6897)
               {
                digitalWrite(LED_PIN,LOW);//LED turn off
               }

               if(results.value == 0xFF02FD)
               {
                digitalWrite(LED_PIN,HIGH);//LED turn on
               }

               irrecv.resume(); //Receive next signal
        }
}