Can't upload to Bluno Mega 2560
Simon.Næsted 2026-03-10 18:33:33 494 Views3 Replies I have just recieved two Bluno Mega 2560's and am trying to upload an empty sketch (From Arduino IDE) to it, but i keep getting the following errors:
Error: timeout
Error: timeout
Error: timeout
Error: timeout
Error: timeout
Error: timeout
Error: timeout communicating with programmer
Error: stk500v2_getsync() failed; try -x delay=n with some n in [-80, 100]
Error: unable to open port COM3 for programmer wiring
Failed uploading: uploading error: exit status 1
This also happens if i try uploading standard sketches from the Arduino site. I have checked that the port works, which it does, and Arduino can detect the board as well.
Can anyone tell me why this happens?
Hello, both device manager and Arduino IDE recognizes the board, the driver is right and the port is shown. Does this change anything?
Simon.Næsted Hello!
The error indicates a communication failure between your computer and the Bluno Mega 2560, which is not related to the sketch code.
Please check:
1. If the board is properly recognized and the driver works normally in Device Manager;2. If the board type and related settings are correct in Arduino IDE.
niu.yixuan Meant to reply to your message directly. Sorry
