I would like to know if there is a way to use the embedded processor (STM32WLE5) to call the AT commands and send them to the radio without having an external processor writing over a UART?
Nope it’s impossible ! If you use it with AT commands you need an external processor or similar to send AT commands. Other way is to delete original AT firmware and fully program by yourself the STM32 in it
Thank you … That was what I thought