nrf52 UART AT commands

[lirank]

Hello,

I have connected my PCA10040 to a SIMCOM SIM5320 WCDMA modem and I am trying to make my PCA10040 a gateway for other BLE devices to send data over a cellular network.

In order to do so, I have used the peripheral ble_app_uart example and so far I have managed to get to the BLE messages buffer, the outgoing UART messages buffer and to establish UART connection with the modem (via RS232).

All I am missing now is the ability to get the the modem's AT COMMANDS responses (OK, ERROR, CREG results, etc.) in order to perform an error handler. Is there any way I can get those responses into a buffer and handle them?

UART communication properties:

• baud rate: 115200
• modem connector type: RS232
• PCA10040 connection: RX\TX pins (default 8\6)

Thanks in advance, Liran

[Matt]

The uart_event_handle() that you pass to APP_UART_FIFO_INIT() in uart_ini() should be invoked (it's a callback function) when your modem sends something back to the PCA10040. Can you share your code with us here? And have you scoped the rx/tx pins to make sure the modem does respond with some OK message?