Simple sinewave generator with ATTiny13This a simple circuit demonstrate the Tiny family high speed PWM capabilities to produce a sinewave output. It was also incorporated functions to play Piano Key Tones using sinewave waveform, as a smooth and clean sound as the ones produced by cords.The sinewaves produces are better in low frequencies.

Simple sinewave generator with ATTiny13
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Simple sinewave generator with ATTiny13