deividsoncs · December 16, 2019 16:20
diff --git a/AnalysIR.h b/AnalysIR.h
 /*
 Author: AnalysIR
 Revision: 1.0 - Initial release
 Revision: 1.1 - update generic digitalPinToInterrupt to support most arduino platform

 This code is provided to overcome an issue with Arduino IR libraries
 It allows you to capture raw timings for signals longer than 255 marks & spaces.
 Typical use case is for long Air conditioner signals.

 You can use the output to plug back into IRremote, to resend the signal.

 This Software was written by AnalysIR.

 Usage: Free to use, subject to conditions posted on blog below.
 Please credit AnalysIR and provide a link to our website/blog, where possible.

 Copyright AnalysIR 2014-2019

 Please refer to the blog posting for conditions associated with use.
 http://www.analysir.com/blog/2014/03/19/air-conditioners-problems-recording-long-infrared-remote-control-signals-arduino/

 Connections:
 IR Receiver      Arduino
 V+          ->  +5v
 GND          ->  GND
 Signal Out   ->  Digital Pin 2
 (If using a 3V3 Arduino, you should connect V+ to +3V3)

 Tested on UNO only
 */

 #define LEDPIN 13
 //you may increase this value on Arduinos with greater than 2k SRAM
 #define maxLen 800
 #define rxPinIR 2 //pin D2 or D3 on standard arduinos. (other pins may be available on More mordern modules like MEga2560, DUE, ESP8266, ESP32)


 volatile  unsigned int irBuffer[maxLen]; //stores timings - volatile because changed by ISR
 volatile unsigned int x = 0; //Pointer thru irBuffer - volatile because changed by ISR

 void setup() {
  Serial.begin(115200); //change BAUD rate as required
  attachInterrupt(digitalPinToInterrupt(rxPinIR), rxIR_Interrupt_Handler, CHANGE);//set up ISR for receiving IR signal
 }

 void loop() {
  // put your main code here, to run repeatedly:

  Serial.println(F("Press the button on the remote now - once only"));
  delay(5000); // pause 5 secs
  if (x) { //if a signal is captured
    digitalWrite(LEDPIN, HIGH);//visual indicator that signal received
    Serial.println();
    Serial.print(F("Raw: (")); //dump raw header format - for library
    Serial.print((x - 1));
    Serial.print(F(") "));
    detachInterrupt(digitalPinToInterrupt(rxPinIR));//stop interrupts & capture until finshed here
    for (int i = 1; i < x; i++) { //now dump the times
      if (!(i & 0x1)) Serial.print(F("-"));
      Serial.print(irBuffer[i] - irBuffer[i - 1]);
      Serial.print(F(", "));
    }
    x = 0;
    Serial.println();
    Serial.println();
    digitalWrite(LEDPIN, LOW);//end of visual indicator, for this time
    attachInterrupt(digitalPinToInterrupt(rxPinIR), rxIR_Interrupt_Handler, CHANGE);//re-enable ISR for receiving IR signal
  }

 }

 void rxIR_Interrupt_Handler() {
  if (x > maxLen) return; //ignore if irBuffer is already full
  irBuffer[x++] = micros(); //just continually record the time-stamp of signal transitions

 }
	/*
	Author: AnalysIR
	Revision: 1.0 - Initial release
	Revision: 1.1 - update generic digitalPinToInterrupt to support most arduino platform

	This code is provided to overcome an issue with Arduino IR libraries
	It allows you to capture raw timings for signals longer than 255 marks & spaces.
	Typical use case is for long Air conditioner signals.

	You can use the output to plug back into IRremote, to resend the signal.

	This Software was written by AnalysIR.

	Usage: Free to use, subject to conditions posted on blog below.
	Please credit AnalysIR and provide a link to our website/blog, where possible.

	Copyright AnalysIR 2014-2019

	Please refer to the blog posting for conditions associated with use.
	http://www.analysir.com/blog/2014/03/19/air-conditioners-problems-recording-long-infrared-remote-control-signals-arduino/

	Connections:
	IR Receiver Arduino
	V+ -> +5v
	GND -> GND
	Signal Out -> Digital Pin 2
	(If using a 3V3 Arduino, you should connect V+ to +3V3)

	Tested on UNO only
	*/

	#define LEDPIN 13
	//you may increase this value on Arduinos with greater than 2k SRAM
	#define maxLen 800
	#define rxPinIR 2 //pin D2 or D3 on standard arduinos. (other pins may be available on More mordern modules like MEga2560, DUE, ESP8266, ESP32)


	volatile unsigned int irBuffer[maxLen]; //stores timings - volatile because changed by ISR
	volatile unsigned int x = 0; //Pointer thru irBuffer - volatile because changed by ISR

	void setup() {
	Serial.begin(115200); //change BAUD rate as required
	attachInterrupt(digitalPinToInterrupt(rxPinIR), rxIR_Interrupt_Handler, CHANGE);//set up ISR for receiving IR signal
	}

	void loop() {
	// put your main code here, to run repeatedly:

	Serial.println(F("Press the button on the remote now - once only"));
	delay(5000); // pause 5 secs
	if (x) { //if a signal is captured
	digitalWrite(LEDPIN, HIGH);//visual indicator that signal received
	Serial.println();
	Serial.print(F("Raw: (")); //dump raw header format - for library
	Serial.print((x - 1));
	Serial.print(F(") "));
	detachInterrupt(digitalPinToInterrupt(rxPinIR));//stop interrupts & capture until finshed here
	for (int i = 1; i < x; i++) { //now dump the times
	if (!(i & 0x1)) Serial.print(F("-"));
	Serial.print(irBuffer[i] - irBuffer[i - 1]);
	Serial.print(F(", "));
	}
	x = 0;
	Serial.println();
	Serial.println();
	digitalWrite(LEDPIN, LOW);//end of visual indicator, for this time
	attachInterrupt(digitalPinToInterrupt(rxPinIR), rxIR_Interrupt_Handler, CHANGE);//re-enable ISR for receiving IR signal
	}

	}

	void rxIR_Interrupt_Handler() {
	if (x > maxLen) return; //ignore if irBuffer is already full
	irBuffer[x++] = micros(); //just continually record the time-stamp of signal transitions

	}