Arduino multi button analog input

172

02:18:32

A simple circuit to create a multi-button module for arduino that only takes up one analog pin instead of various digital pins. In order for the circuit to work, all of your resistor values must be different and your analog input should be taken from the line to ground just before the 1k resistor (orange in this circuit). This can theoretically be expanded to any size as long as you use different resitors and you limit your values within your arduino program.

published 10 years ago

faceblast

10 years ago

that's similar to TV/vcr front panel buttons too

juancho13

4 years ago

Gracias

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