- #1
cfgrs
- 10
- 0
Hello everyone! I have a bit of an engineering puzzle. I've only a passing understanding of electrical engineering, so still trying to puzzle if out.
Basically, imagine you have one black box A connected, via a single wire with a switch, to black box B. There is no returning wire. The components inside the boxes are up to you, but somehow I need them to be able to detect when the switch between them is closed. Since there is no returning wire, my basic electronics seems insufficient without a common ground to be had.
Any suggestions? Many thanks!
- Chacho
Basically, imagine you have one black box A connected, via a single wire with a switch, to black box B. There is no returning wire. The components inside the boxes are up to you, but somehow I need them to be able to detect when the switch between them is closed. Since there is no returning wire, my basic electronics seems insufficient without a common ground to be had.
Any suggestions? Many thanks!
- Chacho