i want to do simple data transfer and why blueetooth serial terminal was not be able to detect the device?

[venkatesha kj]

how to do simple data transfer using bluetooth serail terminal?

[venkatesha kj]

app: RSSI: 206
<info> app: RSSI: 195
<info> app: RSSI: 180
<info> app: RSSI: 179
<info> app: RSSI: 164
<info> app: RSSI: 171
<info> app: RSSI: 173
<info> app: RSSI: 179
<info> app: RSSI: 174
<info> app: RSSI: 176
<info> app: RSSI: 170
<info> app: RSSI: 175
<info> app: RSSI: 177
<info> app: RSSI: 180
<info> app: RSSI: 176
<info> app: RSSI: 180
<info> app: RSSI: 180
<info> app: RSSI: 181
<info> app: RSSI: 181
<info> app: RSSI: 180
<info> app: RSSI: 182

i started measuring the rssi level when i am near to the device its showing high values but when i move away from the device its showing lower values. But in nrf connect it value is negitive and showing lower negitive values when i am near to the device. will the values returned from the rssi get function are correct?

[Karl Ylvisaker]

venkatesha kj said:

i want to scan the central device and check the rssi level of the central device how do i do that?

The peripheral does not do any scanning.
You can still use sd_ble_gap_rssi_get on the peripheral to retrieve the RSSI of the last connection event on the peripheral's side.

venkatesha kj said:

i started measuring the rssi level when i am near to the device its showing high values but when i move away from the device its showing lower values. But in nrf connect it value is negitive and showing lower negitive values when i am near to the device. will the values returned from the rssi get function are correct?

How did you produce these values? They do not seem like any RSSI values I have ever seen before. Could it be that you have formatted or type-casted them improperly?

Best regards,
Karl

[venkatesha kj]

i got the output properly i am suppose to use int8_t variable

[Karl Ylvisaker]

Please share the section of the code in which you did this, using the Insert -> Code option.

Best regards,
Karl

[venkatesha kj]

void bsp_event_handler(bsp_event_t event)
{
    uint32_t err_code;
   // uint8_t count = 48;
  // uint8_t data_array1 = count;
   // uint8_t len = sizeof(count);
    char count[] = "hi serobit";
    uint8_t len = strlen(count);
    switch (event)
    {
        case BSP_EVENT_SLEEP:
            sleep_mode_enter();
            break;

        case BSP_EVENT_DISCONNECT:
            err_code = sd_ble_gap_disconnect(m_conn_handle, BLE_HCI_REMOTE_USER_TERMINATED_CONNECTION);
            if (err_code != NRF_ERROR_INVALID_STATE)
            {
                APP_ERROR_CHECK(err_code);
            }
            break;

        case BSP_EVENT_WHITELIST_OFF:
            if (m_conn_handle == BLE_CONN_HANDLE_INVALID)
            {
                err_code = ble_advertising_restart_without_whitelist(&m_advertising);
                if (err_code != NRF_ERROR_INVALID_STATE)
                {
                    APP_ERROR_CHECK(err_code);
                }
            }
            break;
         case BSP_EVENT_KEY_2:
            // Set_Count(count-48);
             err_code = ble_nus_data_send(&m_nus, count, &len, m_conn_handle);
           // err_code = ble_nus_data_send(&m_nus, &str, &len, m_conn_handle);


        default:
            break;
    }
}

i try to send the data when ever the button intterupt occured but not be able to see the data on nrf-connect app?