I tried to test the RAK4631 but it can not be tested.
I sent the serial with (at+ver=?) but no response from the board.
I even tried with RAK SERIAL PORT TOOL but no response.
Everything is correct, Port Number etc.
I already tested the things as far as I can find from this forum.
And the attached photos are for reference for the problem that I am facing now.
I tested with some RAK Wisblock RUI example programs in arduino.
I’ve found out that from the error, it said that (“Device is either not in bootloader mode, or using an unsupported bootloader”).
So I re-uploaded the bootloader using from the beegee mentioned (Bootloader Fails to upgrade via BLE - #3 by beegee) but the problem is not solved.
Can someone give me some suggestions about that issue?
It already took me 3 days to solve this one but no progress.
If you want to use RUI3 and Arduino IDE, you have to change the bootloader, then follow our RAK4631-R Quick Start Guide
More information about supported IDE for RUI3 are in the RUI3 Documentation
If you do not want to update the bootloader, you can use the open source version in Arduino IDE.
Just follow our Quick Start Guide to install the correct BSP in Arduino IDE and check out our examples in our WisBlock repo