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Arduino - Reading Rotary Switches

Macavity

By Macavity
in DIY Astronomer

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Macavity

Macavity

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Posted (edited)

Nothing too exciting or original, but finding this a useful technique! 😎

"Surround" the rotary switch with 1k resistors, connect to the supply
rails and voila -- Read it out with ONE analog pin! In diagram form:

clip_image023_thumb1.jpg.33bd7b03b29ef505d6aeb312c8fafca6.jpg

Personally I have found it *much* easier to implement using the following
SQUARE switches. Found on Ebay etc., ... I buy mine from TME Poland!

https://www.tme.com/us/en-us/details/sr17a1815f89n/rotary-switches/ninigi/

A bit fiddly... I use Veroboard in this weird "double sided" way... 😛

Tricky.JPG.c5983684e98f292314d2aa0a875d5880.JPG

Here's some I made earlier! New 3-way + 4-way and early prototype 8-way! 🥳

ShellPeas.JPG.76bacc4d998e29950c56843c05239cfa.JPG

I usually chose resistors to TOTAL 10k Ohm. Hey, HTH someone sometime! 🙂

Edited by Macavity
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