Datasheet

Configuration

Check the Configuration! page earlier to set up the sketch for Software/Hardware UART or Software/Hardware SPI.

The default is hardware SPI

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: