@Deltasquare said in Attaching 5V device:

dc42 said I can simply plug the RasPi into the output of the paneldue, which is a 4-pin plug where I populated the 5V pin on the far right as well as the ground left of it. Before plugging the Raspberry into that I checked the voltage and there is nothing....

You should get 5V between the pins as shown here https://d17kynu4zpq5hy.cloudfront.net/igi/duet3d/4k56ZjaaAHrTJI6Z.huge. The pins are on the far right or the far left depending on which way up you have the Duet.

@nxt-1 said in 5V GND:

@dc42 said in 5V GND:

If you feed the 5V power to the Duet via the 5V_PS connector, then the ground pin of that connector is already tied to VIN ground on the Duet.

You mean internally on the Duet?

Yes.