Description: The membrane keypad has keys 0-9, which play notes C4, D4, E4, F4, G4, A4, B4, C5, E5, and D5. The * and # keys are used to change the duration from 2/10 of a second and 8/10 of a second.
Multiprotocol firmware is compiled using the Arduino IDE. The guide below will walk you through all the steps to compile and upload your customized firmware. These instructions are for the Atmega328p ...
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