Testing with a mobile device

Getting started with nRF5 SDK and Keil (nRF51 & nRF52 Series)

If you have a mobile device that supports Bluetooth® Low Energy, download the nRF Connect app from Google Play or App Store to test your application.

The following procedure assumes that you have programmed the Bluetooth Low Energy Peripheral UART example from the nRF5 SDK (examples/ble_peripheral/ble_app_uart) on your development kit. Steps for testing other examples are similar. See the testing instructions for each example in the nRF5 SDK documentation for more information.
  1. Download and install nRF Connect from Google Play or App Store.
  2. Open nRF Connect.
  3. Make sure that the development kit is running the ble_app_uart example.
    LED1 should be blinking every 2 seconds, indicating that it is advertising.
  4. Tap Scan.
  5. Find the device and tap Connect.
    The default device name for the Peripheral UART example is "Nordic_UART".
  6. When connected, tap the options button below the device name and select Enable services.
    Enable services

    This example communicates over Bluetooth Low Energy using the Nordic UART Service (NUS).

  7. Tap the options button and select Show log.
  8. In a terminal connected via CDC-UART, enter hello and send it to the development kit.
    The text is sent through the development kit to your mobile device over a Bluetooth Low Energy link. The mobile device will then display it in the nRF Connect log:
    Received message