I very accidentally caused a short-circuit to two completely different cheap (under 4$ each) Arduino Uno clones, rendering Windows sound alert for unplugged USB several times.
This subsequently led to a problem with uploading code and not blinking green light on reset on both the Arduinos. Now, I am aware what this means but I am unable to see why this happens. I thought it has protection against that.
Is it normal for them to react like that so easily? How can I prevent this happening AGAIN?