Datasheet

> Hello, World! Data mode!

# Send command to switch modes

> +++

# Bluefruit LE module switches to CMD mode

# Send ATI command and wait for the response

> ATI

< BLEFRIEND

< nRF51822 QFAAG00

< B122AAC33F3D2296

< 0.6.2

< May 01 2015

< OK

# Switch back to DATA mode

> +++

< OK

# We're back in data mode now

Welcome back!

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

friend

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