Wireless sound

Other Hardware General Electronics
43

Grumpy_Mike:
For changing the PWM frequency see this
Arduino Playground - HomePage

I've tried every value possible and no solution, are you sure this will work? :frowning:

void setPwmFrequency(int pin, int divisor) {
  byte mode;
  if(pin == 5 || pin == 6 || pin == 9 || pin == 10) {
    switch(divisor) {
    case 1: 
      mode = 0x01; 
      break;
    case 8: 
      mode = 0x02; 
      break;
    case 64: 
      mode = 0x03; 
      break;
    case 256: 
      mode = 0x04; 
      break;
    case 1024: 
      mode = 0x05; 
      break;
    default: 
      return;
    }
    if(pin == 5 || pin == 6) {
      TCCR0B = TCCR0B & 0b11111000 | mode;
    } 
    else {
      TCCR1B = TCCR1B & 0b11111000 | mode;
    }
  } 
  else if(pin == 3 || pin == 11) {
    switch(divisor) {
    case 1: 
      mode = 0x01; 
      break;
    case 8: 
      mode = 0x02; 
      break;
    case 32: 
      mode = 0x03; 
      break;
    case 64: 
      mode = 0x04; 
      break;
    case 128: 
      mode = 0x05; 
      break;
    case 256: 
      mode = 0x06; 
      break;
    case 1024: 
      mode = 0x7; 
      break;
    default: 
      return;
    }

    TCCR2B = TCCR2B & 0b11111000 | mode;
  }
}

void setup() {
  pinMode(11, OUTPUT);
  setPwmFrequency(11, 1);
}

void loop(){
  int val = analogRead(A0);
  analogWrite(11, val);
}