| Es gibt viele Varianten von winzigen Tastaturen, Klavieren und Orgeln, die auf 555er-Oszillatoren, Arduino-Boards und Mikrocontrollern wie d...
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| Three modes available: Piano (8 white notes and 5 black notes, one key transposes. Tone of higher notes, + 12 notes) PlayStore (a melody...
| Happy Holidays Readers ! New version : Piano-PlayList-Metronome There are many variations of Piano based on 555, UNO, ATtiny, Nano, touch...
| My dear wife asked me to provide the kitchen spots with a "non-Alexa" switch in order to be able to turn on the lights even with floury or...