@vlad I am having the same issue. Where did you change keepalive timeout to a long time?
Essentially, what file did you edit, what parameter and to how long?
@fets So far, I have only built the 5x5 board (but the others should be schematically identical). The only issue I have found so far is that I cannot get the ISP port to work. But I have checked and I have an identical setup on the 1.0 board and that worked, so I suspect the programmer is too weak to drive the net on this one. So it is not a board-issue per se, and might only be an issue on the 5x5 board as routing is the most complex on that one due to the size.
@sundberg84
I also on my last work removed the LG33, it's faster
Well this most likely have been provided as info, but else it's here:
Remember to burn new OPTIBOOT 8MHz into the Arduino Pro Mini
and then I also use avrdude with a usbtinyISP to set the fuse to not check battery voltage monitoring, this is done after I have flashed this with Arduino IDE
avrdude -c usbtiny -p m328p -U efuse:w:0x07:m```