Problem with IRRemote sender

Using Arduino Programming Questions
1

I have the following code:

#include <IRremote.h>      // importa libreria IRremote
#define Boton_1 0xFA057F80
#define Boton_2 0xF8077F80
#define Boton_3 0xF7087F80
#define Boton_4 0xF6097F80
#define Boton_5 0xE41B7F80

int SENSOR = A7;      // sensor KY-022 a pin digital 11

void setup() {
  IrSender.begin(SENSOR, DISABLE_LED_FEEDBACK);
  IrSender.enableIROut(38);
} 

void loop() {
  IrSender.sendNEC(Boton_1, 32);
  delay (2000);
  IrSender.sendNEC(Boton_2, 32);
  delay (2000);
  IrSender.sendNEC(Boton_3, 32);
  delay (2000);
  IrSender.sendNEC(Boton_4, 32);
  delay (2000);
  IrSender.sendNEC(Boton_5, 32);
  delay (2000);
}

the problem is that I can't get the arduino to send any data through the IR led, if I look at it with a mobile, no activity is seen (if I connect it to VCC, the led is visible)

2

Show us a schematic of your circuit.

Show us a good image of the wiring.

3

What Arduino? The A6 and A7 pins on the classic Nano can’t be used as digital outputs. They are only two more inputs to the multiplexer that feeds the ADC.

4

image
image1042×449 28.5 KB

code of Arduino nano:

#include <IRremote.h>      // importa libreria IRremote
#define Boton_1 0xFA057F80
#define Boton_2 0xF8077F80
#define Boton_3 0xF7087F80
#define Boton_4 0xF6097F80
#define Boton_5 0xE41B7F80

int SENSOR = A3;      // sensor KY-022 a pin digital 11

void setup() {
  IrSender.begin(SENSOR, DISABLE_LED_FEEDBACK);
  IrSender.enableIROut(38);
} 

void loop() {
  IrSender.sendNEC(Boton_1, 32);
  delay (2000);
  IrSender.sendNEC(Boton_2, 32);
  delay (2000);
  IrSender.sendNEC(Boton_3, 32);
  delay (2000);
  IrSender.sendNEC(Boton_4, 32);
  delay (2000);
  IrSender.sendNEC(Boton_5, 32);
  delay (2000);
}

code of arduino leonardo:

#include <IRremote.h>    // importa libreria IRremote

void setup() { 
  Serial.begin(9600);             // inicializa comunicacion serie a 9600 bps
  IrReceiver.begin(13, DISABLE_LED_FEEDBACK);     // inicializa recepcion de datos
  IrSender.enableIROut(38);
} 

void loop() {
  if (IrReceiver.decode()) {          // si existen datos ya decodificados
    Serial.print(getProtocolString(IrReceiver.decodedIRData.protocol));
    Serial.print(" : ");
    Serial.print(IrReceiver.decodedIRData.numberOfBits);
    Serial.print(" : ");
    Serial.println(IrReceiver.decodedIRData.decodedRawData, HEX);  // imprime valor en hexadecimal en monitor
    IrReceiver.resume(); // resume la adquisicion de datos
  }
  delay (100);                  // breve demora de 100 ms.
}

terminal output:

//original remote
NEC : 32 : FA057F80
NEC : 32 : F8077F80
NEC : 32 : F7087F80
NEC : 32 : F6097F80
NEC : 32 : E41B7F80
//recived signal
NEC : 32 : 1FEA05F
NEC : 32 : 1FEE01F
NEC : 32 : 1FE10EF

problem:
the signal received by the arduino is not the same as by the original command

5

Try IrSender.sendNECRaw(Boton_1, 2); // 2 repeats

6

You know the difference between LSB and MSB?
Draw both values as bit streams and have a deeper look at them and you will understand :-).

7

this is the new code:

NEC : 32 : E41B7F80
NEC : 0 : 0
NEC : 0 : 0
NEC : 32 : FA057F80
NEC : 0 : 0
NEC : 32 : F8077F80
NEC : 0 : 0
NEC : 32 : F7087F80
NEC : 0 : 0
NEC : 0 : 0
NEC : 32 : F6097F80
NEC : 0 : 0
NEC : 32 : E41B7F80
NEC : 0 : 0
NEC : 32 : FA057F80
NEC : 0 : 0
NEC : 0 : 0
NEC : 32 : F8077F80
NEC : 0 : 0
NEC : 32 : F7087F80
NEC : 0 : 0
NEC : 32 : F6097F80
NEC : 0 : 0
NEC : 0 : 0
NEC : 32 : E41B7F80
NEC : 0 : 0
NEC : 32 : FA057F80
NEC : 0 : 0
NEC : 32 : F8077F80
NEC : 0 : 0
NEC : 0 : 0
NEC : 32 : F7087F80
NEC : 0 : 0

and this is the response by the terminal

#include <IRremote.h>      // importa libreria IRremote
#define Boton_1 0xFA057F80
#define Boton_2 0xF8077F80
#define Boton_3 0xF7087F80
#define Boton_4 0xF6097F80
#define Boton_5 0xE41B7F80

int SENSOR = A3;      // sensor KY-022 a pin digital 11

void setup() {
  IrSender.begin(SENSOR, DISABLE_LED_FEEDBACK);
  IrSender.enableIROut(38);
} 

void loop() {
  IrSender.sendNECRaw(Boton_1, 2);
  delay (2000);
  IrSender.sendNECRaw(Boton_2, 2);
  delay (2000);
  IrSender.sendNECRaw(Boton_3, 2);
  delay (2000);
  IrSender.sendNECRaw(Boton_4, 2);
  delay (2000);
  IrSender.sendNECRaw(Boton_5, 2);
  delay (2000);
}

as you can see, some of the messages are received correctly, but others only receive the protocol

8

I don't know now what exactly the reason is. Try other repeat parameters than 2 when calling IrSender.sendNECRaw. Maybe 0. Otherwise change the IF condition in the code for the reception.

E.g. like this:

if (IrReceiver.decode() && IrReceiver.decodedIRData.numberOfBits > 0) {          // si existen datos ya decodificados
    Serial.print(getProtocolString(IrReceiver.decodedIRData.protocol));
    Serial.print(" : ");
    Serial.print(IrReceiver.decodedIRData.numberOfBits);
    Serial.print(" : ");
    Serial.println(IrReceiver.decodedIRData.decodedRawData, HEX);  // imprime valor en hexadecimal en monitor
    IrReceiver.resume(); // resume la adquisicion de datos
  }
  delay (100);                  // breve demora de 100 ms.
9

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