I wrote a simple program that simply turns a pin high, waits 1 second, and then turns it low, and waits another second. I flash it, works great, and then an hour or so later when I look at the spark core with the LED attached to the pin that I’m switching high / low, the LED stops flashing. If I unplug the core from USB and then plug it back in, voila, works great again for a little bit, and then stops working after a while.
Anyone else experiencing this?