Hi, I've got a problem with inputs being very unstable. i defined the inputs as INPUT_PULLUP. at 3 of my arduino's there is no problem (Wire length < 1m) but at one of my arduino the wire length is +/- 5m and all 6 of the inputs are constantly switching. (at this arduino i've got also 6 inputs …

unstable inputs

Elkhawaga June 26, 2019, 3:57pm 10

I faced the same problem , i fix it by using 10uf Cap between INPUT_Pullup & GND

weedpharma & Wawa Completely Right but use 10uf

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