Re: Problem wiring "KY040-like" encoder pushbutton to the board [solved]

Using Arduino General Electronics
1

Hi dear all!
I can't properly wire the push button of the encoder to my Arduino.
The device itself:

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The ground of the encoder and the ground of the button are common according to the diagram below,
so as far as I understand there is no place for pull down resistor to wire the button.

With this diagram there was no result as well:

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Thank you in advance for any ideas!

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The version with the external 10K pullup should work if the switch is normally open. Pin 8 should be LOW when the button is pushed. Post the code that did not work, maybe we can fix it. Why not enable the internal pullup on pin 8 (pinMode(8, INPUT_PULLUP) so the external resistor is not required.

digin.jpg
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3

groundfungus,
Thank you very much for your reply! Just 15 minutes before your message I found the answer about internal pullups
here.
The button works fine now.
Thanks a lot for clearing it up for me anyway!

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