Arduino UNO - only ON led lights up

Using Arduino IDE 1.x
1

Hi !

I have a problem with my UNO board. After connecting four WS2812B leds, 12V power supply and USB cable to test everything my board started to overheating very fast. I disconnected everything and plug only USB cable to see if everything is ok. Unfortunately it's not :frowning: Only ON led lights up, PC doesn't play plug-in sound and in device manager I can't see my board. Overheating elements are marked on picture.

4096×3072 1.19 MB

Cheers from Poland !

PS Sorry for my bad English :wink:

2

(deleted)

3

Ahh sorry i forgot to ask what i have to do with this fact but if u said "throw it in the bin" i wilk do this. Thanks for help

4

Or keep it, buy a new one and repair it when you come at the point you know what you broke :slight_smile: