Title Short description
Acustic clap switch Control your appliance with a clap of your hands.
Clap switch v1 Clap switch in flip-flop fashion.
Clap switch v2 Clap switch in flip-flop fashion.
Electronic cricket Automatic electronic cricket.
Frequency Counter Uses sound card as signal input device.
Knock-knock alarm Alarm, more of a sensor, that activates on door knocking sound.
Voice modulator A device that distorts NF audio input into a robot-like sound at the output.


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