An arduino board that does not appear in Device Manager is a dead board?
hi
recurrent issue for which I found no solution...
I have 5 arduino mega boards to which I cannot upload code. they get stuck in "upload" and nothing else happens, or avrdue error. I see all 5 boards in the "port" list.
I run the loop-back test on all of them. 3 passed the test and 2 failed the test. I am then assuming there is nothing wrong with the computer.
-Should I throw the boards that did not pass the test to the garbage?
-How can I manage to upload code in the boards that did pass the test?
thanks in advance for your positive and constructive contribution
You can try uploading sketches via ICSP port to the boards that do not appear in Device Manager.
"I see all 5 boards in the "port" list."
How do they appear in the port list?
Does it show as an "Unknown device" or nothing at all shows up?
more explanation at his other post about the same topic cant upload code - #2 by camilozk - Installation & Troubleshooting - Arduino Forum
the posts should be merged!
nothing at all shows up!
they appear as follow:
COM 4 (Arduino/Genuino Mega or Mega 2560)
COM 6 (Arduino/Genuino Mega or Mega 2560)
COM 7 (Arduino/Genuino Mega or Mega 2560)
COM 5
COM 5
You can try uploading sketches via ICSP port to the boards that do not appear in Device Manager.
I tried to upload code to the boards via ICSP with USBasp and I had a terrible time. several problems on the way. Any other easy way to upload code via ICSP?
Why do the boards dont appear in Device Manager? Is serial communication problem?