Datasheet
BLE UART: Controller
This examples shows you you can use the BLEUart helper class and the Bluefruit LE Connect applications to send
based keypad and sensor data to your nRF52.
Setup
In order to use this sketch, you will need to open Bluefruit LE Connect on your mobile device using our free
iOS (https://adafru.it/f4H), Android (https://adafru.it/f4G) or OS X (https://adafru.it/o9F) applications.
Load the Controller example sketch (https://adafru.it/vaN) in the Arduino IDE
Compile the sketch and flash it to your nRF52 based Feather
Once you are done uploading, open the Serial Monitor (Tools > Serial Monitor)
Open the Bluefruit LE Connect application on your mobile device
Connect to the appropriate target (probably 'Bluefruit52')
Once connected switch to the Controller application inside the app
Enable an appropriate control surface. The Color Picker control surface is shown below, for example (screen shot
taken from the iOS application):
© Adafruit Industries https://learn.adafruit.com/bluefruit-nrf52-feather-learning-guide Page 38 of 175