Button common/ground
Posted: Mon Jun 15, 2015 1:54 pm
I understand that the switch lines need to be grounded when that button is pushed, but to what ground?
I note that there is a specific common/ground for the switches, but electrically that does seem to be the same as the D2P's main ground, so is the switch ground required? Could the buttons just connect the switch lines to vehicle ground and not bother with the switch ground line. Or could the buttons connect to ground and the switch common line from the D2P also be connected elsewhere to vehicle ground, would that be the same?
I want to eliminate having that common/ground wire between the switches and the D2P. I'd like to just have the 4 switch lines and use vehicle ground as the switch common. Any problems with doing that?
I note that there is a specific common/ground for the switches, but electrically that does seem to be the same as the D2P's main ground, so is the switch ground required? Could the buttons just connect the switch lines to vehicle ground and not bother with the switch ground line. Or could the buttons connect to ground and the switch common line from the D2P also be connected elsewhere to vehicle ground, would that be the same?
I want to eliminate having that common/ground wire between the switches and the D2P. I'd like to just have the 4 switch lines and use vehicle ground as the switch common. Any problems with doing that?