nRF UART can be used to connect to Bluetooth low energy (Bluetooth SMART) devices running a custom Nordic Semiconductor UART service. When connected, the app can send and receive ASCII text strings.
UUIDs used are:
- 6E400001-B5A3-F393-E0A9-E50E24DCCA9E for the Service
- 6E400002-B5A3-F393-E0A9-E50E24DCCA9E for the TX Characteristic
- 6E400003-B5A3-F393-E0A9-E50E24DCCA9E for the RX Characteristic