MemberJanuary 24, 2021 at 11:06 pm
What about to try doing contact to the input with a cable connected to 12v, and after connected to 0V, and check if the eratic state of the input is gone ? If so, it would mean, I think, that you need a pullup or pulldown resistor, depending to your project.
Or maybe a switch connected for exemple NC to 12v and NO to 0V ?
- This reply was modified 1 year, 3 months ago by Franju. Reason: orthographe