Power Circuit Monitoring for Power Loss

@stephack I was putting mine in its final location and noticed that it only reports open/closed events IF I pull the USB cable from the brick. The brick doesn't even have to be energized: when disconnected its open and when plugged in the brick its closed. In other words if I leave the USB in the brick and plug it into the wall or pull it out there is no difference. Are you experiencing the same? Maybe these screw terminals won't work and I need to solder it to the board.

@JBrown any thoughts on this issue?