>so long as the two are hardwired and one or both are programmable, there's no certainty. I don't quite follow you. What I meant was something like this. Conne

>so long as the two are hardwired and one or both are programmable, there's no certainty. I don't quite follow you. What I meant was something like this. Connect the LED in series to the power supply to the camera, so that you cannot even power the camera without turning the LED on.