I received the Hallowing in ADABOX009. I plugged in into my Mac and the demo sketch ran fine. I then set up the Arduino IDE and upload the Graphics test code from the Hallowing Overview. This started running, but then stopped. The screen is blank. The reset button does nothing except blink the red light. The Hallowing not longer connects to a port on the Mac. Also tried connecting on a Raspberry Pi. Tried different cables. The Hallowing appears dead. Did I do something to cause this? How do I go about troubleshooting to see if the Hallowing is still OK?
Thanks