Hi all. I'm having trouble with a genuine Uno R4 Minima and IDE 2.3.2.
I can see and upload sketches to the board however after that the serial monitor indicates there is no board connected i.e "Select a board and port to connect automatically". I can see the board (bold in the board/port window.
Suggestions?
Hi @CopperDog. If you open Arduino IDE's Tools > Port menu, do you see a serial port listed there with an "(Arduino UNO R4 Minima)" label? If so, make sure you have selected that port from the menu.
The port number of the UNO R4 Minima can change under certain conditions so it might be that this cause the correct port to no longer be selected in Arduino IDE, which is one of the potential causes of the problem you encountered.
Thanks for the reply and yes I see the board there. I can upload a sketch to the board and I can double tap the board reset button to wake up the boot loader but it won't communicate to the serial monitor once the code is on board. Keeps telling me to select a board and port.
I would suspect a bad USB driver here however it uploads code OK and can read the boards serial number. It's communicating but not with the serial monitor.
This is what will happen if the sketch crashes on power up.
What code is loaded on the board? If the board is locking up or something then it might disappear from the USB.
No idea what was going on. It suddenly decided to work. Might have been an IDE update that fixed it even though it had the latest version. I lost my computer to a lightning strike a few weeks ago so I'm slowly getting everything back up on a new system.
Sorry I can't say what the fix was here.