nrf UART app receive value sent from uart app

[Erblin]

Hi, I am using the nrf uart app to communicate with a smart phone and the NRF52. I am trying to detect whenever it is sent a value between 0 and 60 from the phone, and save it to an int. I know that I get a callback from the function nus_data_handler whenever something is received on the nrf, but I dont really know how to convert that data to type int.

(I am using the smart phone app NRF UART)

-Erblin

[Sigurd]

One solution to store the number sent from the phone, could be something like this:

static void nus_data_handler(ble_nus_t * p_nus, uint8_t * p_data, uint16_t length)
{
    uint32_t myNumber = 0;
    for (uint32_t i = 0; i < length; i++)
    {
        while (app_uart_put(p_data[i]) != NRF_SUCCESS);
        myNumber = myNumber + ((p_data[i]-'0')*pow(10,length-i-1));
    }
    while (app_uart_put('\r') != NRF_SUCCESS);
    while (app_uart_put('\n') != NRF_SUCCESS);
    printf("myNumber is: %d\n",myNumber);
}

You will need to add #include "math.h" for the pow()-function.

[Erblin]

Thank you for answering, my code is now working :)