Datasheet

Configuration!

Before you start uploading any of the example sketches, you'll need to CONFIGURE the Bluefruit interface - there's a lot of options so pay close

attention!

Which board do you have?

There's a few products under the Bluefruit name:

If you are using the Bluefruit LE Shield then you have an SPI-connected NRF51822

module. You can use this with Atmega328 (Arduino UNO or compatible), ATmega32u4

(Arduino Leonardo, compatible) or ATSAMD21 (Arduino Zero, compatible) and possibly

others.

Your pinouts are Hardware SPI, CS = 8, IRQ = 7, RST = 4

Bluefruit Micro or Feather 32u4 Bluefruit

If you have a Bluefruit Micro or Feather 32u4 Bluefruit LE then you have an

ATmega32u4 chip with Hardware SPI, CS = 8, IRQ = 7, RST = 4

Feather M0 Bluefruit LE

If you have a Feather M0 Bluefruit LE then you have an ATSAMD21 chip with Hardware

SPI, CS = 8, IRQ = 7, RST = 4

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

friend

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