I installed 16.04 xUbuntu on the joule although now the tutorial at: joule-code-samples/blink-led-py at master · intel-iot-devkit/joule-code-samples · GitHub no longer runs.
When I run it I get the error "ValueError('Invalid GPIO pin specified')" and the LED does not blink. Any ideas on how to interface with the GPIO pins on Ubuntu?
We’d suggest you to contact Ubuntu support, they can provide you a more accurate answer. However, for any Ubuntu questions on Joule please refer to: https://developer.ubuntu.com/en/snappy/start/intel-joule/. This OS is still in beta, so there might be issues while using it.