GitHub - yschaeff/arduino-volume: Arduino tone() just got 8-bit volume control!
Skill Builder: Advanced Arduino Sound Synthesis - Make:
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teckel12 / Arduino toneAC / wiki / Home — Bitbucket
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8-bit volume control for Arduino tone() | Arduino Blog
Tone() with 8-bit Volume Control - No Extra Components! | Arduino Project Hub
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Buzzer With Arduino - Piezo Buzzer Tone Code | Speaker
Tone() with 8-bit Volume Control - No Extra Components! | Arduino Project Hub
