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1. Foone🏳️‍⚧️ (foone@digipres.club)'s status on Wednesday, 20-Dec-2023 05:59:32 JST Foone🏳️‍⚧️

   in reply to

   oh hey, it's doing that analog-buttons trick!
   See, There's only 3 wires for eight buttons: voltage, ground, and "key".

   Each button has a resistor inline, and the microcontroller on the other end measures the resistance of the keypad, and can figure out which key is pressed based on that.