IR Raw codes won't work

Everything related to protocols and IR codes
Post Reply
biglemon29
Posts: 1
Joined: Tue Mar 05, 2019 1:45 am

IR Raw codes won't work

Post by biglemon29 »

Hi, I am trying to create an IR remote for a lasko space heater I have. The transmitting code I wrote will not work, It will not turn on the heater

This is the sending code I have

Code: Select all

/*
 * IRremote: IRsendDemo - demonstrates sending IR codes with IRsend
 * An IR LED must be connected to Arduino PWM pin 3.
 * Version 0.1 July, 2009
 * Copyright 2009 Ken Shirriff
 * http://arcfn.com
 */ //   http://www.instructables.com/id/Arduino-Remote-Control-Less-10/?ALLSTEPS

#include <IRremote.h>

#include <SoftwareSerial.h>

SoftwareSerial BT(10, 11); // TX, RX
String readdata;

IRsend irsend;  // An IR LED must be connected to Arduino PWM pin 3.
 //here put your raw code//

unsigned int raw1[23] = {1250, 450, 1250, 400, 450, 1300, 1250, 400, 1250, 450, 400, 1300, 400, 1300, 400, 1300, 400, 1300, 400, 1300, 350, 1300, 1250,}; 








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



void loop() {


  delay(3000);
  irsend.sendRaw(raw1,23,38);
  Serial.println("Sending Code");
  
  

 
}
To obtain the RAW codes I tried 2 different sketches, they give me two different bit lengths

Here is the first sketch I used

Code: Select all

//------------------------------------------------------------------------------
// Include the IRremote library header
//
#include <IRremote.h>

//------------------------------------------------------------------------------
// Tell IRremote which Arduino pin is connected to the IR Receiver (TSOP4838)
//
int recvPin = 11;
IRrecv irrecv(recvPin);

//+=============================================================================
// Configure the Arduino
//
void  setup ( )
{
  Serial.begin(9600);   // Status message will be sent to PC at 9600 baud
  irrecv.enableIRIn();  // Start the receiver
}

//+=============================================================================
// Display IR code
//
void  ircode (decode_results *results)
{
  // Panasonic has an Address
  if (results->decode_type == PANASONIC) {
    Serial.print(results->address, HEX);
    Serial.print(":");
  }

  // Print Code
  Serial.print(results->value, HEX);
}

//+=============================================================================
// Display encoding type
//
void  encoding (decode_results *results)
{
  switch (results->decode_type) {
    default:
    case UNKNOWN:      Serial.print("UNKNOWN");       break ;
    case NEC:          Serial.print("NEC");           break ;
    case SONY:         Serial.print("SONY");          break ;
    case RC5:          Serial.print("RC5");           break ;
    case RC6:          Serial.print("RC6");           break ;
    case DISH:         Serial.print("DISH");          break ;
    case SHARP:        Serial.print("SHARP");         break ;
    case JVC:          Serial.print("JVC");           break ;
    case SANYO:        Serial.print("SANYO");         break ;
    case MITSUBISHI:   Serial.print("MITSUBISHI");    break ;
    case SAMSUNG:      Serial.print("SAMSUNG");       break ;
    case LG:           Serial.print("LG");            break ;
    case WHYNTER:      Serial.print("WHYNTER");       break ;
    case AIWA_RC_T501: Serial.print("AIWA_RC_T501");  break ;
    case PANASONIC:    Serial.print("PANASONIC");     break ;
    case DENON:        Serial.print("Denon");         break ;
  }
}

//+=============================================================================
// Dump out the decode_results structure.
//
void  dumpInfo (decode_results *results)
{
  // Check if the buffer overflowed
  if (results->overflow) {
    Serial.println("IR code too long. Edit IRremoteInt.h and increase RAWBUF");
    return;
  }

  // Show Encoding standard
  Serial.print("Encoding  : ");
  encoding(results);
  Serial.println("");

  // Show Code & length
  Serial.print("Code      : ");
  ircode(results);
  Serial.print(" (");
  Serial.print(results->bits, DEC);
  Serial.println(" bits)");
}

//+=============================================================================
// Dump out the decode_results structure.
//
void  dumpRaw (decode_results *results)
{
  // Print Raw data
  Serial.print("Timing[");
  Serial.print(results->rawlen-1, DEC);
  Serial.println("]: ");

  for (int i = 1;  i < results->rawlen;  i++) {
    unsigned long  x = results->rawbuf[i] * USECPERTICK;
    if (!(i & 1)) {  // even
      Serial.print("-");
      if (x < 1000)  Serial.print(" ") ;
      if (x < 100)   Serial.print(" ") ;
      Serial.print(x, DEC);
    } else {  // odd
      Serial.print("     ");
      Serial.print("+");
      if (x < 1000)  Serial.print(" ") ;
      if (x < 100)   Serial.print(" ") ;
      Serial.print(x, DEC);
      if (i < results->rawlen-1) Serial.print(", "); //',' not needed for last one
    }
    if (!(i % 8))  Serial.println("");
  }
  Serial.println("");                    // Newline
}

//+=============================================================================
// Dump out the decode_results structure.
//
void  dumpCode (decode_results *results)
{
  // Start declaration
  Serial.print("unsigned int  ");          // variable type
  Serial.print("rawData[");                // array name
  Serial.print(results->rawlen - 1, DEC);  // array size
  Serial.print("] = {");                   // Start declaration

  // Dump data
  for (int i = 1;  i < results->rawlen;  i++) {
    Serial.print(results->rawbuf[i] * USECPERTICK, DEC);
    if ( i < results->rawlen-1 ) Serial.print(","); // ',' not needed on last one
    if (!(i & 1))  Serial.print(" ");
  }

  // End declaration
  Serial.print("};");  // 

  // Comment
  Serial.print("  // ");
  encoding(results);
  Serial.print(" ");
  ircode(results);

  // Newline
  Serial.println("");

  // Now dump "known" codes
  if (results->decode_type != UNKNOWN) {

    // Some protocols have an address
    if (results->decode_type == PANASONIC) {
      Serial.print("unsigned int  addr = 0x");
      Serial.print(results->address, HEX);
      Serial.println(";");
    }

    // All protocols have data
    Serial.print("unsigned int  data = 0x");
    Serial.print(results->value, HEX);
    Serial.println(";");
  }
}

//+=============================================================================
// The repeating section of the code
//
void  loop ( )
{
  decode_results  results;        // Somewhere to store the results

  if (irrecv.decode(&results)) {  // Grab an IR code
    dumpInfo(&results);           // Output the results
    dumpRaw(&results);            // Output the results in RAW format
    dumpCode(&results);           // Output the results as source code
    Serial.println("");           // Blank line between entries
    irrecv.resume();              // Prepare for the next value
  }
}
This gave me a 23 bit array

Code: Select all

Encoding  : UNKNOWN
Code      : A32AB931 (32 bits)
Timing[23]: 
     +1250, - 450     +1250, - 450     + 400, -1300     +1200, - 500
     +1200, - 500     + 350, -1300     + 400, -1300     + 400, -1300
     + 400, -1300     + 400, -1300     + 350, -1300     +1250
unsigned int  rawData[23] = {1250,450, 1250,450, 400,1300, 1200,500, 1200,500, 350,1300, 400,1300, 400,1300, 400,1300, 400,1300, 350,1300, 1250};  // UNKNOWN A32AB931

This was the next sketch

Code: Select all

#include <IRremoteInt.h>
#include <IRremote.h>

// If one keypress results in multiple codes being output, then
// change in IRremoteInt.h:
// #define _GAP 50000
// This sketchThis sketch was obtained from:
//  For more info:
//  jason welsh
//   https://www.youtube.com/watch?v=eR8sQq3pl20
//  https://docs.google.com/document/d/1QgmFbFlB0aI3swrhQkacRe3C-cIS0p1t0TV36-i2lLo/edit

//   http://www.instructables.com/id/Arduino-Remote-Control-Less-10/?ALLSTEPS
/////////////////////////////////
//  I made a few small changes

#include <IRremote.h>

int RECV_PIN = 11;
IRrecv irrecv(RECV_PIN);
decode_results results;

void setup()
{
  Serial.begin(9600);
  irrecv.enableIRIn(); // Start the receiver
}

int c = 0;

void dump(decode_results *results) {
  int count = results->rawlen;
  Serial.println(c);
  c++;
  Serial.println("For IR Scope: ");
  for (int i = 1; i < count; i++) {
   
    if ((i % 2) == 1) {
      Serial.print("+");
      Serial.print(results->rawbuf[i]*USECPERTICK, DEC);
    }
    else {
      Serial.print(-(int)results->rawbuf[i]*USECPERTICK, DEC);
    }
    Serial.print(" ");
  }
  Serial.println("");
  Serial.println("For Arduino sketch: ");
  Serial.print("unsigned int raw");
  Serial.print(c);
   Serial.print("[");
  Serial.print(count, DEC);
  Serial.print("] = {");
  for (int i = 1; i < count; i++) {
   
    if ((i % 2) == 1) {
      Serial.print(results->rawbuf[i]*USECPERTICK, DEC);
    }
    else {
      Serial.print((int)results->rawbuf[i]*USECPERTICK, DEC);
    }
    Serial.print(",");
  }
  Serial.print("};");
  Serial.println("");
  Serial.print("irsend.sendRaw(");
  Serial.print("raw");
  Serial.print(c);
  Serial.print(",");
  Serial.print(count, DEC);
  Serial.print(",38);");
  Serial.println("");
  Serial.println("");
}

void loop() {
  if (irrecv.decode(&results)) {
    dump(&results);
    irrecv.resume(); // Receive the next value
  }
}

This gave me a 24 bit array

Code: Select all

For IR Scope: 
+1250 -450 +1250 -450 +350 -1300 +1250 -450 +1250 -450 +400 -1300 +400 -1300 +350 -1300 +450 -1250 +400 -1300 +400 -1300 +1250 
For Arduino sketch: 
unsigned int raw4[24] = {1250,450,1250,450,350,1300,1250,450,1250,450,400,1300,400,1300,350,1300,450,1250,400,1300,400,1300,1250,};
irsend.sendRaw(raw4,24,38);
Which sketch would be most accurate for receiving the RAW codes? Could this 1 bit difference be effecting the remote not working properly? Or is there another potential issue on the transmitting end not turning on the heater
Top
User avatar
AnalysIR
Site Admin
Posts: 793
Joined: Sat Aug 31, 2013 3:51 pm
Location: Dublin, Ireland
Contact:
Contact AnalysIR

Re: IR Raw codes won't work

Post by AnalysIR »

Hi I am travelling for the next few days and will respond next week.
Top
Post Reply

Return to “IR Protocols & Codes”