Arduino PWMでブザー

PWMを使用して簡易的にブザー音を出力できる。下記例は、目覚ましの音に近い。5Vだと圧電サウンダはかなり大音響なので、抵抗で適宜電圧を落とすと良い。

	void setup() {
	  pinMode(6, OUTPUT);
	  OCR0A = 128;
	}
	
	void loop() {
	  TCCR0A |= B10000000;  
	  delay(100);
	  TCCR0A ^= B10000000;
	  delay(100);
	
	  TCCR0A |= B10000000;  
	  delay(100);
	  TCCR0A ^= B10000000;
	  delay(100);
	
	  TCCR0A |= B10000000;  
	  delay(100);
	  TCCR0A ^= B10000000;
	  delay(100);
	
	  TCCR0A |= B10000000;  
	  delay(100);
	  TCCR0A ^= B10000000;
	  delay(600);
	}

Chuck Norris is the ghost author of the entire Debian GNU/Linux distribution.
And he wrote it in 24 hours, while taking snack breaks.

    -- Shlomi Fish
    -- Chuck 
                      Norris Facts by Shlomi Fish and Friends ( http://www.shlomifish.org/humour/bits/facts/Chuck-Norris/ )

The X in XSLT stands for eXtermination.

    -- Shlomi Fish
    -- XSLT Facts by Shlomi Fish and Friends ( http://www.shlomifish.org/humour/bits/facts/XSLT/ )

[ Main Page ]