I have one Arduino Uno which was working fine by below circuit(link):
But when I have connected the new bought the LM35 Ic by the below connection:
The Arduino UNO don't be recognized by the my Ubuntu OS as you can see below:
And by removing the LM35 connections, the Arduino don't be recognized again. I have damaged two Arduino Uno board by this mistake and ...
So I don't know why this happened and for repairing the damaged circuits I hope find out which part of the Arduino circuit are probably damaged?