Datasheet

If using software or hardware Serial UART:

This tutorial does not need to use the MODE pin, make sure you have the mode switch in CMD mode if you do not configure & connect a

MODE pin

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:

Once you see the request, use the App to connect to the Bluefruit LE module in UART mode so you get the text box on your phone

Any text that you type in the box at the top of the Serial Monitor will be sent to the connected phone, and any data sent from the phone will be

displayed in the serial monitor:

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

friend

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