I have a issue with my Arduino Uno r3.
I am sorry for my English and explanation of my problem I am not great with explaining.
I'm not sure why is that happening but I have 5V 18A power supply to power my LEDs. I connected 5v from arduino to 5v from external power supply and I plugged this combined cabble to my LEDs. I did the same with GND. On data pin 6 I used 220 Ohm resistor. Also I am using 12V power supply to power my arduino.
In the same time the usb was plugged.
In and between usb and power some chip is getting HOT I got quickly scared and un plugged whole arduino I am not sure how I should plug this in. It worked fine until I plugged in external power supply and I was using few LEDs at the time.
This is how it looked like in more understandable way.
Just point to me what I did wrong. I will be gratefull for any kind of help.