Nordic Semiconductor's Universal Asynchronous Receiver/Transmitter (UART) app is used to connect BLE devices running a custom Nordic UART service. The app can send and receive ASCII/UTF-8 encoded data to the BLE device. UART in BLE context can be used to receive console outputs from the device. The app connects to the project ble_uart_project_template which is available at the GitHub repository of Nordic Semiconductor (https://github.com/NordicSemiconductor/ble-sdk-arduino/tree/master/libraries/BLE/examples/ble_uart_project_template). Arduino Bluetooth SDK works with BLE shielf for Arduino to setup the BLE link:
nRF UART icon for Android application
The app works with nRF2740 and nRF2741 modules. According to Nordic's ...
