RE: BLE Read-Write using nrf connect application

Sigurd — Mon, 22 Mar 2021 16:49:33 GMT

Hi,

[quote user=""]

my requirement is:

1) to connect to nrf52832 from nrf connect application.

2)when nrf connect send wite i want to receive data(working correctly this part)

3)when nrf connect send read i want to replay some data ( not working this part)

[/quote]

Try to enable both notification and read properties for the TX characteristic.

Snippet:

    // Add the TX Characteristic.
    /**@snippet [Adding proprietary characteristic to the SoftDevice] */
    memset(&add_char_params, 0, sizeof(add_char_params));
    add_char_params.uuid              = BLE_UUID_NUS_TX_CHARACTERISTIC;
    add_char_params.uuid_type         = p_nus->uuid_type;
    add_char_params.max_len           = BLE_NUS_MAX_TX_CHAR_LEN;
    add_char_params.init_len          = sizeof(uint8_t);
    add_char_params.is_var_len        = true;
    add_char_params.char_props.notify = 1;
    add_char_params.char_props.read   = 1;

    add_char_params.read_access       = SEC_OPEN;
    add_char_params.write_access      = SEC_OPEN;
    add_char_params.cccd_write_access = SEC_OPEN;

    return characteristic_add(p_nus->service_handle, &add_char_params, &p_nus->tx_handles);
    /**@snippet [Adding proprietary characteristic to the SoftDevice] */