It’s status is: solid Red. Then hard fault SOS. Then red/yellow solid
I was running an ESC using this for quite a while no problems. It has two servo wires - ground + signal that I was connecting to A4 and GND. Then I went to hook up a higher power one the same way except it had three servo control wires (I think one is for battery monitoring for low power shutoff). My problems seemed to happen when I had to guess which wire combination to make and started randomly swapping how A4 and GND were connected to those three servo wires. The ESC was powered with 14 VDC when doing that. Never got the ESC to respond. Suddenly nothing from the Photon. Those three wires have GND, 5 VDC and 3.3 VDC on them when not connected to anything. I may have hooked one of them to Photon ground.
I also used 5 V to feed a discrete in to D0 at one point about 1/2 hour before the problems began.
I must have fried it somehow but would like to understand why before frying another. Any thoughts?