UART Trace - thingsee/thingsee-sdk GitHub Wiki
Debugging using UART traces
Start a terminal program (picocom, use your favourite)
$ sudo apt install picocom
$ sudo picocom /dev/serial/by-id/usb-FTDI_TTL232R-3V3_FTGCXCTJ-if00-port0 -b115200
All the traces activated in the software should be now outputting to the terminal. To see more detailed view of the running software, add more traces to the code or enable already existing ones by configuring the SW.