I'm looking to check for a 5v "high" on a wire. The wire is attached to a seperate circuit operating at 5v. I was wondering how to wire it up to my proto board? The wire is actually a pair of wire, vdd and gnd. I think I am correct in saying I need to tie the gnd to my arduino's ground in order to…

using a digitalpin to check for 5v on a wire

Topic		Replies	Views
Basic Q: How can you connect a Digital Pin to both 5V and Ground?? General Electronics	10	7492	May 6, 2021
Digital Input General Electronics	4	1311	May 6, 2021
digitalRead Deutsch	7	1584	May 6, 2021
Arduino Uno - 5V to input pin General Electronics	14	8091	May 6, 2021
Cortocircuitare 5V Arduino e INPUT Digitale Generale	2	950	May 7, 2021