volume motor controlled bu IR remote

Projects Programming
1

So i have a IRreceiver, a DC motor and a L298N H-bridge module connected to an Arduino Nano. The circuit works well and all, but i need to have a smooth rotation when i keep the volume +/- button on the remote. I can't seem to find a solution.
Using the code below, the motor works with a delay of 30 milliseconds, but because of that, it does not have a smooth rotation, rather a rapid on/off.
The motor is a potentiometer with reduction ratio motor. so i don't need lower speed.

#include <IRremote.h>

//pin receptor IR
const int RECV_PIN = 6;
//Pinii pt driver motor
const int enA = 9;
const int in1 = 10;
const int in2 = 11;
//pin buton comutare sursa audio
const int button = 7;
//pini sursa audio
const int out1 = 2;
const int out2 = 3;
const int out3 = 4;
//pin activare tranzistor
const int tranzistor = 8;
//variabile
int output;
int contor = 0;

int buttonState = LOW;
long lastDebounceTime = 0;
long debounceDelay = 50;

unsigned long lastCode;

IRrecv irrecv(RECV_PIN);
decode_results results;

void setup() {
  Serial.begin(9600);
  pinMode(enA, OUTPUT);
  pinMode(in1, OUTPUT);
  pinMode(in2, OUTPUT);
  pinMode(button, INPUT);
  pinMode(out1, OUTPUT);
  pinMode(out2, OUTPUT);
  pinMode(out3, OUTPUT);
  pinMode(tranzistor, OUTPUT);
  //activam IR receiver
  irrecv.enableIRIn();

  //activare tranzistor si intarziere 12 sec
  //delay(15000);
  digitalWrite(tranzistor, HIGH);
  
  //activam output 1 cu intarziere 1 sec
  //delay(1000);
  digitalWrite(out1, HIGH);
  output = 1;

  //analogWrite(enA, 255);
  
}

void loop() {
  if(irrecv.decode(&results))  // verifica receptionare cod
  {
    Serial.println(results.value, HEX);
    if(results.value == 0xFFFFFFFF)
    {
      // daca se repeta, folosim ultimul cod primit
      results.value = lastCode;
    }

    if(results.value == 0xFFE01F) // buton volum -
    {
      lastCode = results.value;
      digitalWrite(in1, LOW);
      digitalWrite(in2, HIGH);
      contor = 1;
      //delay(1);
      //digitalWrite(in2, LOW);          
    }
    

    if(results.value == 0xFFA857) //buton volum +
    {
      lastCode = results.value;
      digitalWrite(in1, HIGH);
      digitalWrite(in2, LOW);
      contor = 1;
      //delay(1);
      //digitalWrite(in1, LOW);
    }

    if(results.value == 0xFF42BD) // button sursa
      {
        if(output == 1){
        digitalWrite(out1, LOW);
        delay(20);
        digitalWrite(out2, HIGH);
        output = 2;
        delay(50);
        results.value = 0;
      }
     }
    if(results.value == 0xFF42BD) // button sursa
      {
        if(output == 2){
        digitalWrite(out2, LOW);
        delay(20);
        digitalWrite(out3, HIGH);
        output = 3;
        delay(500);
        results.value = 0;
        }
      }
    if(results.value == 0xFF42BD) // button sursa
    {
      if(output == 3){
        digitalWrite(out3, LOW);
        delay(20);
        digitalWrite(out1, HIGH);
        output = 1;
        delay(500);
        results.value = 0;
      }
    }

    delay(30);
    irrecv.resume();
  }
  else
  {
    if (contor == 1)
    {
      Serial.println("intrerupe");
      digitalWrite(in1, LOW);
      digitalWrite(in2, LOW);
      contor = 0;
    }
  }

  if(digitalRead(button) == LOW){
    if(output == 1){
      digitalWrite(out1, LOW);
      digitalWrite(out2, HIGH);
      output = 2;
      delay(1000);
    }
  }

  if(digitalRead(button) == LOW){
    if(output == 2){
      digitalWrite(out2, LOW);
      digitalWrite(out3, HIGH);
      output = 3;
      delay(1000);
    }
  }

  if(digitalRead(button) == LOW){
    Serial.println("error");
    if(output == 3){
      digitalWrite(out3, LOW);
      digitalWrite(out1, HIGH);
      output = 1;
      delay(1000);
    }
  }


/*  buttonState=digitalRead(button);
  if((millis() - lastDebounceTime) > debounceDelay){
    if((buttonState == LOW) && output == 1){
      digitalWrite(out1, LOW);
      delay(50);
      digitalWrite(out2, HIGH);
      output = 2;
      lastDebounceTime=millis();
    }
    if((buttonState == LOW) && output == 2){
      digitalWrite(out2, LOW);
      delay(50);
      digitalWrite(out3, HIGH);
      output = 3;
      lastDebounceTime=millis();
    }
    if((buttonState == LOW) && output == 3){
      digitalWrite(out3, LOW);
      delay(50);
      digitalWrite(out1, HIGH);
      output = 1;
      lastDebounceTime=millis();
    }
   
  }
*/ 
}
2

How many milliseconds between the button code and the repeat code? How many milliseconds between each repeat code?

Store the time each time a button code arrives and wait until the expected repeat time expires before turning off the motor.

3

dumb question, how can i found the time between two IR signals?

4

Use the millis() or micros() function.

When the first signal arrives, record, in a variable*, the value of millis() (or micros()). When the secnod signal arrives record that time in a different variable. Subtract the first from the second to get the time elapsed between the two signals.

*Variables that deal with times, using the millis() or micros() functions, should be declared unsigned long.

5

So simple, yet never went through my mind. thank you, i'l keep you posted if i managed to solve it