Datasheet

Introduction

The Adafruit Feather nRF52 Bluefruit is our latest easy-to-use all-in-one Bluetooth Low Energy board, with a native-

bluetooth chip, the nRF52832! It's our take on an 'all-in-one' Arduino-compatible + Bluetooth Low Energy with built in

USB and battery charging.

This chip has twice the flash, SRAM and performance of the earlier nRF51-based Bluefruit modules. Best of all it has

Arduino IDE support so there is no 'helper' chip like the ATmega32u4 or ATSAMD21. Instead, this chip is programmed

directly! It's got tons of awesome peripherals: plenty of GPIO, analog inputs, PWM, timers, etc. Leaving out the extra

microcontroller means the price, complexity and power-usage are all lower/better. It allows you to run code directly on

the nRF52832, straight from the Arduino IDE as you would with any other MCU or Arduino compatible device. A single

MCU means better performance, lower overall power consumption, and lower production costs if you ever want to

design your own hardware based on your Bluefruit nRF52 Feather project!

The chips are pre-programed with an auto-resetting bootloader so you can upload quickly in the Arduino IDE with no

button-pressing. Want to program the chip directly? You can use our command line tools with your favorite editor and

toolchain.

And to get you up and running quickly, we've done all the heavy lifting of getting the low level BLE stack into shape so

that you can focus on your project from day one!

nRF52832 Technical Details

ARM Cortex M4F (with HW floating point acceleration) running at 64MHz

512KB flash and 64KB SRAM

Built in USB Serial converter for fast and efficient programming and debugging

Bluetooth Low Energy compatible 2.4GHz radio (Details available in the nRF52832 (https://adafru.it/vaJ) product

specification)

FCC / IC / TELEC certified module

Up to +4dBm output power

1.7v to 3.3v operation with internal linear and DC/DC voltage regulators

19 GPIO, 8 x 12-bit ADC pins, up to 12 PWM outputs (3 PWM modules with 4 outputs each)

Pin #17 red LED for general purpose blinking

Power/enable pin

Measures 2.0" x 0.9" x 0.28" (51mm x 23mm x 8mm) without headers soldered in

Light as a (large?) feather - 5.7 grams

4 mounting holes

Reset button

Optional SWD connector for debugging

Works out of the box with just about all of our Adafruit FeatherWings! (https://adafru.it/vby) (Wings that require the

UART like the GPS FeatherWing won't work)

Further technical details available in the nRF52832 (https://adafru.it/vaJ) product specification.

Like all of our Feather boards, the Bluefruit nRF52 Feather includes on board USB-based LIPO charging, and

has a standard LIPO battery connector to make your wireless projects genuinely 'wireless' at no additional

cost (aside from the LIPO cell itself).