8.0 Note playback in RPiSparkModule (PWM TONE)

PWM (Pulse Width Modulation) is a technique for getting analog results with digital means. Digital control is used to create a square wave, a signal switched between on and off. for more detailed Pulse-width modulation (PWM).

The RPi-Spark can play back PWM tones of a specified frequency, and the output is through a mono headphone jack or a mono speaker. In this section we using it play collision sound for BallBox.

See detailed manual RPiTone or refer to (14.2.6 PWM tone player)


 

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