Upload
- If your board is not detected by Arduino IDE
- If your sketch doesn't upload
- If there are "Unknown" devices in the board selector or ports without a board name in the Tools > Port menu
- avrdude: ser_open(): can't set com-state for COMn
- If Arduino IDE detects a different board than the one you've connected
- dfu-util errors when uploading (exit status 74)
- Fix udev rules on Linux
- Use your Engineering Kit board with MATLAB or Simulink
- Upload a sketch in Arduino IDE
- If the Arduino IDE freezes or is unresponsive
- Find and stop process blocking a port
- Select board and port in Arduino IDE
- 'Error: avrdude' when uploading
- Failed uploading: no upload port provided
- Error "invalid device signature" when trying to upload a sketch
- Fix port access on Linux
- Error gnu.io.PortInUseException when uploading code or using the serial monitor on the Mac
- If your board is unresponsive, stuck resetting, or otherwise not working as expected
- My sketch uploads but does not work as expected
