I have a Teensy 3.1, one of the outputs goes to a relay card that is opto isolated so the relay's aren't being driven directly from the teensy. That relay supplies 28vdc to a motor when turned on. When the relay shuts off and the motor stops, sometimes it kills the Teensy. By kills, I mean, the teensy stops responding to I/O's It doesn't disconnect from the pc as it still shows up in the device mgr. I have to disconnect the usb to reset the teensy to get it working again. The entire project shares a common ground so my assumption is a stray voltage on the gnd side getting back to that teensy? It doesn't affect the other 13 Teensy's I have in this project also all on the same ground plane, so not 100% sure whats going on. How should I proceed to cure this issue?
Thanks
Rob
Thanks
Rob