Wiring previous-year banner sensors

[Alan Anderson]

Originally Posted by Cjmovie

Regardless of whether we use the NC or NO signal line, we are reading 0 on our digital input.

It sounds like you have everything wired properly: 12 volts to the power (brown?) lead, ground to the ground (blue?) lead, and one of the signal lines (black? white?) to the digital input. You do have it to the SIG pin of a DIGITAL I/O on the Digital Sidecar, right?

The output of the Banner Sensor is essentially a switch that is either open or closed to ground. You won't read a voltage on it unless you supply one yourself, or if you connect it to something that supplies a pullup. The Digital Sidecar inputs have such pullups, so things should be working for you (they do for us -- we are using a Banner sensor as well).

The pullup on the Digital Sidecar won't work if there is no power coming to it. Double-check that the DS has all three power LEDs lit: 12v, 5v, and 6v.