Theremin Ranging

theremin.ino

	void loop() {
		// put your main code here, to run repeatedly:
		long dist = msToCm(ping());

		if ( dist < 100.00 ) {
			toneCounter = 0;

			// 1    == min distance in cm
			// 100  == max distance in cm
			// 1500 == max frequency
			// 500  == min frequency
			int pitch = map(dist, 1, 100, 1568, 784);
			tone(buzzer, pitch);
		}
	}