CommentStreams:C5a2a8f9f8ef47e2a1715d36a00d2b5e

Can I use the 5V USB power output for anything? I am using GPIO pins to power my RPI. I tried plugging a cable into the USB 5V for something else yesterday while my PI was running, and the entire unit shut down. I know my USB cable and the unit I plugged in is okay, because it will work if I plug it in to the RPI directly, or into a USB charging jack.