Storing the value read previously until new pulse

Question

I'm currently doing a project on an Arduino Uno. The project is based on receiving an IR Signal from an IR Remote and then based on the signal received, perform other operations.

The problem is that the signal gets reset every time. I want to store the value received from the IR Remote and then resets it if detects another pulse.

Here is my code :

int brojac = 0;
int pinData = 10;
unsigned long lengthHeader;
unsigned long bit;
int byteValue;
int vrime = 1000 ;
int storeValue = 0;

void setup()
{
 Serial.begin(9600);
 pinMode(pinData, INPUT);

}

void loop() {
 lengthHeader = pulseIn(pinData, LOW);
 if (lengthHeader > 1500)
 {
   for (int i = 1; i <= 32; i++) {
     bit = pulseIn(pinData, HIGH);

     if (i > 16 && i <= 24)
       if (bit > 1000)
         byteValue = byteValue + (1 << (i - 17));
   }
 }
 Serial.print("byteValue = ");
 Serial.println(byteValue);
 if(byteValue == 66){
   digitalWrite(11,HIGH);
 }
 else{
   digitalWrite(11,LOW);
 }
 delay(vrime);
 byteValue = 0;
 delay(250);

}

Any reason why you are not using the **Arduino IRremote** library? — Patrick Trentin, Feb 05 '17 at 05:41
I'm not using Arduino IRremote because it is not compatible with ATTiny45. ATtiny does not use Timer 2, that is why it is cannot be used unless modified. — Shaam, Feb 09 '17 at 04:50
@PatrickTrentin can you explain me how to change the timers ? — Shaam, Feb 09 '17 at 06:45

score 0 · Answer 1 · answered Feb 05 '17 at 05:31

I got the answer by storing the value in a variable until a new variable is detected.

int pinData = 10;
int led = 11;
unsigned long lengthHeader;
unsigned long bit;
int byteValue;
int storeValue = 0;
int previousValue = 0;

void setup()
{
  Serial.begin(9600);
  pinMode(pinData, INPUT);
  pinMode(led, LOW);
}

void loop() {
  lengthHeader = pulseIn(pinData, LOW);
  if (lengthHeader > 1500)
  {
    for (int i = 1; i <= 32; i++) {
      bit = pulseIn(pinData, HIGH);

      if (i > 16 && i <= 24)
        if (bit > 1000)
          byteValue = byteValue + (1 << (i - 17));
    }
  }
Serial.print("byteValue = ");
Serial.println(byteValue);

  **storeValue = byteValue;
  if (storeValue != 0){
    previousValue = storeValue;
  }

  Serial.print("Previous value = ");
  Serial.println(previousValue);**
  byteValue = 0;
  delay(500);
}

Storing the value read previously until new pulse

1 Answers1