Problem air conditioner

[josep112]

Hello
The air conditioner uses a raw 199, this has to change the IRremote.h -> #define RAWBUF 100 to 200 and change IRremoteInt.h #define _GAP 5000 change to 50000, the problem is that there are over 300 air and the string only accepts 255 to solve this?

[annhan]

Hi josep112,
i can change
typedef struct {
uint8_t recvpin; // pin for IR data from detector
uint8_t rcvstate; // state machine
unsigned int timer; // state timer, counts 50uS ticks.
unsigned int rawbuf[RAWBUF]; // raw data
uint8_t rawlen; // counter of entries in rawbuf
}
irparams_t;

to
typedef struct {
uint8_t recvpin; // pin for IR data from detector
uint8_t rcvstate; // state machine
unsigned long timer; // state timer, counts 50uS ticks.
unsigned long rawbuf[RAWBUF]; // raw data
long rawlen; // counter of entries in rawbuf
}
irparams_t;
you can change rawbuf to 800 for all AIR (Daikin..).
Sketch leaning rawbuf 800 for arduino of Link analysir.com
#define LEDPIN 5
#define maxLen 800

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(0, 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(0);//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(0, 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

}
Sorry for my english
thank you

[josep112]

Hi Annhan,
Thanks for the reply, I changed the code but did not work my code is below

#include <IRremoteESP8266.h>
long rawlen;
uint8_t RECV_PIN = 2; //an IR detector/demodulatord is connected to GPIO pin 2

IRrecv irrecv(RECV_PIN);

decode_results results;

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

void loop() {
if (irrecv.decode(&results)) {
Serial.println(results.value, HEX);
irrecv.resume(); // Receive the next value
}
delay(100);
}

[josep112]

Sorry I had not seen the link, I could change my raw and went from 254 to 347 will test the air thanks for the help

[josep112]

Hi Annhan,
Not quite understand what you need, you had said that does not speak in English which his country talves can talk in another language

[safari2]

Hi all.

I've just solved the similar problem. The issue is only with long IR reading.
There are good solution with hardware interrupt driving reading: http://www.analysir.com/blog/2014/03/19/air-conditioners-problems-recording-long-infrared-remote-control-signals-arduino/
It works almost out of the box for ESP8266. Just change this code from 0 to your pin number (I used 12 (D4 on nodemcu aka lolin):

   attachInterrupt(0, rxIR_Interrupt_Handler, CHANGE);//set up ISR for receiving IR signal
   detachInterrupt(0);//stop interrupts & capture until finshed here
   attachInterrupt(0, rxIR_Interrupt_Handler, CHANGE);//re-enable ISR for receiving IR signal

So I've successfully got unsigned int rawData [439] for my Panasonic HVAC.
Than you can use irsend.sendRaw() from this library.

[helio58]

So I've successfully got unsigned int rawData [439] for my Panasonic HVAC.
Than you can use irsend.sendRaw() from this library.

Please safari2 where is the irsend.sendRaw() ? and how to send the obtained code?
Thanks

[safari2]

helio58, see link below.

[crankyoldgit]

Closing this issue. Versions of the library later than v2.0 now support larger (256+) capture buffers.