Recently our arduino uno was working perfectly fine. Uploading our code, performing the actions. (on XP and windows 7).
However, a couple days ago it was unable to upload any more new code. It gives the typical errors of
avrdude: stk500_getsync(): not in sync: resp=0x00 avrdude: stk500_disable(): protocol error, expect=0x14, resp=0x51
Over those past couple of days ...I have read numerous topics about the problem, and have tried all of the suggestions. Still nothing.
I'm starting to believe that maybe we fried the chip? The chip did get a little hot (making me feel that it got fried).
We have a 14V source connecting to the vin pin. My question is although the arduino is rated for 6-20V is 14V enough to fry the chip? Also is there a max current allowed through the arduino so it doesnt break as well ? (since excess current can cause the chip to heat?)
Let me know if you need any other information!
Thanks for the help and any info you can provide us!