The '''Controller''' sketch allows you to turn your BLE-enabled iOS or Android device in a hand-held controller or an external data source, taking advantage of the wealth of sensors on your phone or tablet.
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You can take accelerometer or quaternion data from your phone, and push it out to your Arduino via BLE, or get the latest GPS co-ordinates for your device without having to purchase (or power!) any external HW.
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== Ouvrir le croquis ==
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To open the Controller sketch, click on the '''File > Examples > Adafruit_BluefruitLE_nRF51''' folder in the Arduino IDE and select '''controller''':