I’m trying to use the GPIO ports on the PIronman board to drive some mosfets. The first two work great, but the moment I turn the third one on the board shorts and the entire system immediately turns off. I’ve tried a variety of GPIO ports in case one the third one is bad, but all of them cause the shutdown. Hoping it was just using too much voltage to support I plugged a second power supply directly into the raspberry and tested. This time the raspberry stayed running, but the PIronman board shut down. I also disconnected all wires from the GPIO lines to make sure there wasn’t a hardware short.
My next test is to force the LEDs being driven by the board off to see if I can conserve some power.
Anyone else try using the GPIO ports? All you need to do is set three of them HIGH.
Update: I shut off the LED and the problem persists.