1
vote
2answers
71 views

What problems can arise from temporarily shorting power supply of a small microcontroller circuit?

A friend purchased a microcontroller-controlled lighting device and in the process of testing it, shorted the VCC and GND together for a second or two. Coincidental or not, the device stopped working ...
6
votes
3answers
297 views

Could smoke allow arcs to form?

I've been trying to find the cause of power supply failures, and noticed that an NTC is smoking if it runs at full power. Obviously the NTC needs changing. But is it possible that the smoke in the ...