Datasheet

Run first example
Lets begin with the beginner project, which we can use to do basic tests. To open the ATCommand sketch, click on
the File > Examples > Adafruit_BluefruitLE_nRF51 folder in the Arduino IDE and select atcommand:
This will open up a new instance of the example in the IDE, as shown below:
Go to the second tab labeled BluefruitConfig.h and find these lines
Don't upload the sketch yet! You will have to begin by changing the configuration.
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