I am using a Spark Core to control a LEGO train (link here). Works great - however - the train took a few tumbles (have been running demos with it the last 2 weeks with lots of kids). Now, even when disconnecting everything and just plugging in the Core to USB, the Spark runs really hot, to the point that you burn your fingers if you try to press the RST button. I’m afraid something is broken - anyone have any pointers as to what might be wrong and how I can troubleshoot?
[PS: How I wish my Photons were arriving ]