Resistor Ladder Switch at Will Jarman blog

Resistor Ladder Switch. The digital inputs control the current flow through. There are also two more switches to connect the wiper, if chosen, to terminals. A resistor ladder is a brilliant but super simple way to attach multiple buttons to a single analog to digital converter (adc) pin on an arduino. At each of the six junctions between the seven resistors there is a switch, which connects to the wiper. I was looking up analog switches but not sure if thats the right way to go. Just use three io pins and switch them between high (output) and high. Can anyone suggest how i could switch this resistor ladder with the smallest possible footprint.

solid state relay How to replace microswitches with electronic
from electronics.stackexchange.com

A resistor ladder is a brilliant but super simple way to attach multiple buttons to a single analog to digital converter (adc) pin on an arduino. There are also two more switches to connect the wiper, if chosen, to terminals. At each of the six junctions between the seven resistors there is a switch, which connects to the wiper. Just use three io pins and switch them between high (output) and high. Can anyone suggest how i could switch this resistor ladder with the smallest possible footprint. I was looking up analog switches but not sure if thats the right way to go. The digital inputs control the current flow through.

solid state relay How to replace microswitches with electronic

Resistor Ladder Switch The digital inputs control the current flow through. A resistor ladder is a brilliant but super simple way to attach multiple buttons to a single analog to digital converter (adc) pin on an arduino. The digital inputs control the current flow through. Just use three io pins and switch them between high (output) and high. Can anyone suggest how i could switch this resistor ladder with the smallest possible footprint. There are also two more switches to connect the wiper, if chosen, to terminals. At each of the six junctions between the seven resistors there is a switch, which connects to the wiper. I was looking up analog switches but not sure if thats the right way to go.

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