Make your own Uno no longer detected
My Uno R3 is no longer detected when I plug it into the computer, so I need to reset the MEGA16U2 chip.
However all the instructions involve the reset jumper pins, but this board does not have those, instead having a USB C to Serial module, see attached photo. How can I reset the chip??
11 Replies
Heres the back where it is soldered on
Unknown User•5mo ago
Message Not Public
Sign In & Join Server To View
same result on my other cables, i'll try and solder them a bit better 😛
Unknown User•5mo ago
Message Not Public
Sign In & Join Server To View
Hmm, so the question remains, how do we reset this module then?
it mentions a reset here

Unknown User•5mo ago
Message Not Public
Sign In & Join Server To View
@max i dont see J2 per se, but i do see it matches the soldering
the reset pin must be the one above LEDTX

so i just short that to ground and plug it in?
j3 is the right way round as you can see, j2 is reverrsed, like we do counting pins on an ic
you may want to clean up those solder joints, some look "cold"