Trying to interface nrf52832 with Quectel BG95M2 chip via UART. By connecting the RX and TX, and sending “AT” command after initializing the UART, the modem doesn’t respond with “OK”, it only echo “AT” back.
The question is, is there anything I’m missing on the connection side? Between the MCU(nrf52) and the BG95? i.e apart from RX and TX if other pins need to be connected as well?
I’m sure I’m missing something simpler, We tried the same way using nrf9160 with nrf52 and it worked fine.
Thats a working application using FreeRTOS and Nordic SDK 15, you can set for use with nrf52832, or nrf52840. You will need to configure pin settings, etc for your board, but it works with BG96.
Given your setup is identical to mine, it worked with simple uart_send and then waiting for response with uart_recv - there wasn’t anything special about the code, the time consuming factor was the hardware configuration which took a while to be sorted out.