RE: nRF52840-DK and RAK811 WisNode (v1.2)

Or — Fri, 08 Nov 2019 15:51:33 GMT

I managed to get it to work, here is what I did:

Put it on top of the nRF52840-DK as you would attach it to an arduino.

Setup UART in your code like so:

    app_uart_comm_params_t const comm_params =
    {
        .rx_pin_no    = ARDUINO_0_PIN,
        .tx_pin_no    = ARDUINO_1_PIN,
        .rts_pin_no   = RTS_PIN_NUMBER,
        .cts_pin_no   = CTS_PIN_NUMBER,
        .flow_control = APP_UART_FLOW_CONTROL_DISABLED,
        .use_parity   = false,
#if defined (UART_PRESENT)
        .baud_rate    = NRF_UART_BAUDRATE_115200
#else
        .baud_rate    = NRF_UARTE_BAUDRATE_115200
#endif
    };

Power the nRF52840-DK through the *USB* input (not the SEGGER/programming input).

That's it, now you can flash the board with examples/ble_peripheral/ble_app_uart and send at commands to it.

Have fun.

PS: examples/ble_peripheral/ble_app_uart wont work out of the box.
You need to add code for sending "\r\n" after every line (if you use nRF Connect or nRF Toolbox - they wont send "\r\n" after a line)

RE: nRF52840-DK and RAK811 WisNode (v1.2)

Andreas — Fri, 08 Nov 2019 12:28:34 GMT

Hi,

The datasheet says that it supports UART, should be fairly straight forward to connect them then either by running wires between or by attaching it ontop of the DK as it claims to be Arduino Uno compatible.

Best regards,

Andreas