A tiny hack against the dark, using Lilypad Arduino.
When the light level falls and it starts to get dark, an LED switches on, and the buzzer plays a short tune to ward away the darkness.
This hacked buzzer plays a few bars of Do Re Mi. After all, if Julie Andrews can’t chase away the darkness, who can?
Uses a light sensor, LED, Lilypad buzzer.
With thanks to MTU’s frequency of musical notes and Leah Buechley’s sound code.
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