I was working on my project, connecting LED strip with Arduino Uno R3, and somehow I miss connected some wires (still trying to figure out where and how).
So right now my Uno is not recognized by the computer. (I tried with a Mega and the computer recognized).
My Arduino status now is the L (pin13) LED stays on, not blinking. Also the chip ATMega 328p is working with the last program I uploaded.
And I have been looking for solutions online and the closest thing I can find is I have to reset the 16U2. But here comes the problem, I tried to put my Uno in DFU by connecting the two pings that are closest to the USB port and removed the jump wire from the two pings so the computer (device manager) will recognized the device as a "Unknown device".
But for some reason the computer cannot even detect the Uno, and I tried to use my Mega to check the connection and it works. So what happened to my Uno did I fried it? Can I still fix it or it is dead?
Sounds like a dead Atmega16U2 chip. Difficult to replace without SMD hot air rework station.
You may be able to connect a USB Light or FTDI Basic to D0/D1 and continue to use the board.
Aww.... so its dead.... thanks tho....now im just using the Mega to program the Uno.
Thanks for the help!!