IR receiver/remote control problem

Projects General Guidance
1

IDE: Arduino 1.8.4-V6.0
Board: Microduino/mCookie-device (VID: 10C4 PID: EA60)
Processor: Microduino/mCookie-core (328p)
Port: COM6

I've built "Light house" example from "Itty Bitty City" microduino kit.
Here is the code which initialises an IR receiver and decodes signals of remote control:

void setup() {
  Serial.begin(9600);
  irrecv.enableIRIn();//Initialize the Infrared Receiver and begin receiving data.
  Serial.println("**************START************");
}

void loop() {
  if (irrecv.decode(&results)) 
  {
    Serial.print("Recv Code:");
    Serial.println(results.value);
    recvParse(results.value);
    //irrecv.enableIRIn();
    irrecv.resume(); //Receive next value.
  }

The problem is that no matter which button I pressed on remote control, the decoded value is always "0"
Why is this happening?

2

@asocial

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3

The code that you posted will not compile. It is incomplete. Always post the entire program.

The recvParse(results.value) function is missing from your code as well as the #include for the library and the constructors and is missing a } to close the loop() function.

4 
#include <IRremote.h>

const byte IR_RECEIVE_PIN = 4;  // ******* note the recv pin

IRrecv irrecv(IR_RECEIVE_PIN);
decode_results results;


void setup()
{
   Serial.begin(9600);
   irrecv.enableIRIn();//Initialize the Infrared Receiver and begin receiving data.
   Serial.println("**************START************");
}

void loop()
{
   if (irrecv.decode(&results))
   {
      Serial.print("Recv Code:");
      Serial.println(results.value);
      //recvParse(results.value);
      //irrecv.enableIRIn();
      irrecv.resume(); //Receive next value.
   }
}

This code works for my remote.

Have you made sure that your remote is in fact transmitting? Most cell phone cameras are sensitive to IR light. You should see a blue glow in the camera when the IR LED transmits.

Are you sure of the decoder wiring?

Have you tried any of the examples that come with the IRremote library?

5

Hello!
I initially compiled and uploaded this sketch without any modifications: Examples -> mCookie_IBC -> _02_Lighthouse. Here is the source code:

Lighthouse.ino

#include "IRControl.h"
#include "colorLed.h"
#include "userDef.h"


void setup() {
  Serial.begin(9600);
  strip.begin();
  strip.setBrightness(BRIGHT_MAX);
  irrecv.enableIRIn();//Initialize the Infrared Receiver and begin receiving data.
#if DEBUG
  Serial.println("**************START************");
#endif
  //Shine 10 colors for 0.5 seconds each.
  for (int i = 0; i < 10; i++)
  {
    setAllLed(i);
    delay(500);//每个颜色持续时间
  }
}

void loop() {
  if (irrecv.decode(&results)) //If there is an available Infrared signal, then:
  {
#if DEBUG
    Serial.print("Recv Code:");
    Serial.println(results.value, HEX);
#endif
    recvParse(results.value);
    //irrecv.enableIRIn();
    irrecv.resume(); //Receive next value.
  }

  switch (mode)
  {
    case MODE_OFF:
      setAllLed(LOW);
      break;
    case MODE_A:
      ledRainbow(20);       //Rainbow effect, 20 ms for every color.
      break;
    case MODE_B:
      ledBreath(COLOR_WARM, 10);
      break;
    case MODE_C:
      ledBreath(COLOR_COLD, 10);
      break;
    case MODE_D:
      setAllLed(colorNum);
      break;
    case MODE_E:
      ledBreath(Color[colorNum], 10);
      break;
    default:
      break;
  }
  delay(20);
}

IRControl.h

#include <IRremote.h>//Import the library for the Infrared Receiver.
#include "userDef.h"

#define  BUTTON_POWER   0x1FE48B7
#define  BUTTON_A       0x1FE807F
#define  BUTTON_B       0x1FE40BF
#define  BUTTON_C       0x1FEC03F
#define  BUTTON_D       0x1FE20DF
#define  BUTTON_E       0x1FE609F
#define  BUTTON_LEFT    0x1FEE01F
#define  BUTTON_RIGHT   0x1FE906F
#define  BUTTON_UP      0x1FEA05F
#define  BUTTON_DOWN    0x1FED827
#define  BUTTON_OK      0x1FE10EF
#define  BUTTON_BACK    0x1FE50AF
#define  BUTTON_VOLUP   0x1FEF807
#define  BUTTON_VOLDOWN 0x1FE708F
#define  BUTTON_MUTE    0x1FEB04F
#define  BUTTON_PLAY    0x1FE30CF



#define  MODE_OFF     0
#define  MODE_A       1
#define  MODE_B       2
#define  MODE_C       3
#define  MODE_D       4
#define  MODE_E       5

IRrecv irrecv(PIN_RECV);
decode_results results;

uint8_t mode = MODE_OFF;
uint8_t colorNum = 1;


//------------Receiving Infrared Signals from Remote Control-------------//
void recvParse(uint32_t recvCode)
{
  switch (recvCode)
  {
    case BUTTON_A:
      mode = MODE_A;
      break;
    case BUTTON_B:
      mode = MODE_B;
      break;
    case BUTTON_C:
      mode = MODE_C;
      break;
    case BUTTON_D:
      mode = MODE_D;
      colorNum = 3;
      break;
    case BUTTON_E:
      mode = MODE_E;
      colorNum = 3;
      break;
    case BUTTON_LEFT:
      colorNum--;
      if (colorNum < 3)
        colorNum = 9;
      break;
    case BUTTON_RIGHT:
      colorNum++;
      if (colorNum > 9)
        colorNum = 3;
      break;
    case BUTTON_POWER:
      mode = MODE_OFF;
      break;
    default:
      break;
  }
}

userDef.h

#define DEBUG       1      //Serial monitor debugging ON/OFF.
#define PIN_RECV    4      //Infrared Receiver pin.
#define PIN_LED     12     //ColorLED pin.
#define LED_NUM     2       

//=================================DO IT YOURSELF: CHANGE THE CODE BELOW!========================================//
//Example: Change "#define BRIGHT_MAX 128" to "#define BRIGHT_MAX 180".                                          //
//         That means the LED will now shine brighter than before.                                               //
//                                                                                                               //
//IMPORTANT: Remember to upload the code into the mBattery again after changing the values!                      //
//===============================================================================================================//
#define BRIGHT_MAX  64         //Max LED brightness. Max brightness is 255. Minimum brightness is 0.

Have you made sure that your remote is in fact transmitting?

Yes, I'm sure. I run it under debug and it printed "0" in console whatever button I pressed on remote control. Also the LED blinked every time I pressed a button on remote control. I've tried wiring on different pins, but it didn't help

Have you tried any of the examples that come with the IRremote library?

SmartCar (Examples -> mCookie_IBC -> _08_SmartCar) has the same problem, it can not be controlled with remote.
BTW, it turned out that one of the weels isn't flat enough, so the car can't move straight :frowning: