/*both codes work, go back and pick which one is more efficient*/

#include <IRremote.h>

// IR receiver pin
//#define IR_RECEIVE   27 // receiver pin, adjust as needed
const uint16_t IR_RECEIVE = 27; // receiver pin, adjust as needed

IRrecv irrecv(IR_RECEIVE);

void setup() {
  Serial.begin(115200);
  irrecv.enableIRIn(); // starting IR receiver
  Serial.println("Ready to receive IR signals...");
}

void loop() {
  decode_results results; // varible to store the results of the IR decoding 
  if(irrecv.decode(&results)) { // if an IR signal is decoded
    /*Serial.println("Received IR signal!"); // successfully able to decode the received IR signal

    // printing out raw data for the received IR signal
    Serial.print("Raw data: ");
    for(int i =0; i < results.rawlen; i++) { // looping through all the intervals of the IR signal
      Serial.print(results.rawbuf[i]*USECPERTICK, DEC); // printing each interval duration in microseconds
      if(i+1 < results.rawlen) { // printing comma after each number 
        Serial.print(",");
      }
    }
    Serial.println(); // newline character*/

    /*new addition starts here*/

    if(results.rawlen == 2) { // checking to see is the length of raw data is 2 (character)
      char receivedChar = (char)results.rawbuf[0];
      if(receivedChar != 0xFFFF) { // checking if it's not the end of a character marker
        Serial.print(receivedChar);
      }
    }

    /*new addition starts here*/
    irrecv.resume(); // prepare for the next IR signal, clears the receiver's buffer and makes it ready to receive another signal
  }
}

/*#include <IRremote.h>

// IR receiver pin
//#define IR_RECEIVE   27 // receiver pin, adjust as needed
const uint16_t IR_RECEIVE = 27; // receiver pin, adjust as needed

IRrecv irrecv(IR_RECEIVE);

void setup() {
  Serial.begin(115200);
  irrecv.enableIRIn(); // starting IR receiver
  Serial.println("Ready to receive IR signals...");
}

void loop() {
  if(irrecv.decode()) { // if an IR signal is decoded
    Serial.println("Received IR signal!"); // reception of the signal
    
    // printing the protocol of the received IR signal 
    Serial.print("Protocol: ");
    Serial.println(irrecv.getProtocolString()); // converting the protocol to a string and printing it out 
    
    // printing the number of bits in the received IR signal 
    Serial.print("Bits: ");
    Serial.println(irrecv.decodedIRData.numberOfBits); // number of bits received

    // printing the value of the received IR signal in hex 
    Serial.print("Value: ");
    Serial.println(irrecv.decodedIRData.decodedRawData, HEX); // raw data of the signal
    
    irrecv.resume(); // prepare for the next IR signal, clears the receiver's buffer and makes it ready to receive another signal
  }
}*/