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If using software or hardware Serial UART:

This tutorial will also be easier to use if you wire up the MODE pin, you can use any pin but our tutorial has pin 12 by default. You can change

this to any pin. If you do not set the MODE pin then make sure you have the mode switch in CMD mode

If you are using a Flora or otherwise don't want to wire up the Mode pin, set the BLUEFRUIT_UART_MODE_PIN to -1 in the configuration

tab so that the sketch will use the +++ method to switch between Command and Data mode!

Don't forget to also connect the CTS pin on the Bluefruit to ground if you are not using it! (The Flora has this already done)

Running the Sketch

Once you upload the sketch to your board (via the arrow-shaped upload icon), and the upload process has finished, open up the Serial Monitor

via Tools > Serial Monitor, and make sure that the baud rate in the lower right-hand corner is set to 115200:

Using Bluefruit LE Connect in Controller Mode

Once the sketch is running you can open Adafruit's Bluefruit LE Connect application (available for Android (http://adafru.it/f4G) or

iOS (http://adafru.it/f4H)) and use the Controller application to interact with the sketch. (If you're new to Bluefruit LE Connect, have a look at our

dedicated Bluefruit LE Connect learning guide (http://adafru.it/iCm).)

On the welcome screen, select the Adafruit Bluefruit LE device from the list of BLE devices in range:

Then from the activity list select Controller:

https://learn.adafruit.com/introducing-the-adafruit-bluefruit-le-uart-

friend

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