2025-12-21 7:12 AM
Hello,
I am setting up a P-NUCLEO-LRWAN3 kit and experiencing issues with serial communication to the end node.
Initially, when connecting the board to Tera Term / PuTTY, I could see boot messages, but I was unable to send any commands (no echo or response when pressing Enter). I am trying to retrieve the DevEUI, AppEUI, and AppKey.
After checking the user manual, I found the section stating that:
USART1 (PA9/PA10) is used by default
USART2 (PA2/PA3) can be used optionally by configuring solder bridges
SB62 & SB63 closed
SB13 & SB14 opened (to disconnect STM32 UART from ST-LINK)
I reconfigured the board accordingly (opened SB13/SB14 and closed SB62/SB63).
However, after this change, I no longer receive any boot messages at all on the serial terminal.
Probably, there is something I am doing wrong; I need help on how to completely set up the Pnucleo Lrwan 3 kit (The end node-gateway-network server-application server)