PWM to Audio Line Level

This is probably a simple one, but what (if anything) would one need to do to connect a PWM pin to regular audio amplifier in terms of changing voltage, current, etc.?


just put a 1K potentiometer between the PWM pin and GND, and then conect a .1Uf capacitor between the pot’s wiper and the audio amp. The pot provides a load for the Arduino, and becomes your volume control. The capacitor blocks DC voltages and only passes audio.
Hope this helps


1K pot
PWM pin -----<><><>-------GND

— .1UF capacitor

audio amp input

Thanks much - I'll give that a shot.