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Adafruit Feather 32u4 Bluefruit LE with Headers - Assembled

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Adafruit Feather 32u4 Bluefruit LE with Headers - Assembled

The Feather 32u4 Bluefruit LE with Headers combines an ATmega32u4 microcontroller with a Bluetooth Low Energy module, USB connectivity, and LiPo battery charging — with standard headers pre-soldered so you can plug straight into a breadboard.

The Bluefruit module is built on the Nordic nRF51822 chipset and supports transparent UART serial communication, custom GATT services, HID keyboard emulation, UriBeacon broadcasting, and over-the-air firmware updates. BLE is supported by all modern smartphones and tablets (iOS, Android, Mac OS X, Windows 8+).

Key Features

  • ATmega32u4 @ 8 MHz – 3.3V logic, 32KB flash, 2KB RAM
  • Native USB – Built-in USB bootloader, serial debugging, and HID device support
  • Bluetooth Low Energy (nRF51822) – iOS and Android compatible
  • Pre-Soldered Standard Headers – Ready for breadboard use immediately
  • UART Service – Transparent serial data pipe between BLE device and microcontroller
  • AT Command Set – Full control over BLE behaviour, GATT services, and advertising
  • BLE HID Keyboard – Act as a wireless keyboard for compatible devices
  • Over-the-Air Updates – Update BLE module firmware via iOS or Android
  • 20 GPIO Pins – Including 10 analogue inputs and 7 PWM outputs
  • Hardware Serial, I2C & SPI – Full peripheral support
  • Built-in LiPo Charger – 100 mA charging with status indicator LED
  • Battery Monitoring – Battery voltage routed to an analogue pin via divider
  • 3.3V Regulator – 500 mA peak current output

Specifications

  • Dimensions – 51 × 23 × 8 mm (without headers)
  • Weight – 5.7 g
  • Mounting – 4 mounting holes

Also Available

Ideal For

  • Phone-controlled projects via iOS or Android
  • Wireless sensor data transmission
  • BLE HID keyboards and controllers
  • Bluetooth beacons and proximity applications

Package Contents

  • 1× Assembled and tested Feather 32u4 Bluefruit LE with pre-soldered headers
Tip: This version comes with standard headers pre-soldered. If you need to stack FeatherWings, consider the stacking headers version.
Note: LiPo battery and USB cable are sold separately.
$18.70

Original: $62.33

-70%
Adafruit Feather 32u4 Bluefruit LE with Headers - Assembled—

$62.33

$18.70

Product Information

Shipping & Returns

Description

The Feather 32u4 Bluefruit LE with Headers combines an ATmega32u4 microcontroller with a Bluetooth Low Energy module, USB connectivity, and LiPo battery charging — with standard headers pre-soldered so you can plug straight into a breadboard.

The Bluefruit module is built on the Nordic nRF51822 chipset and supports transparent UART serial communication, custom GATT services, HID keyboard emulation, UriBeacon broadcasting, and over-the-air firmware updates. BLE is supported by all modern smartphones and tablets (iOS, Android, Mac OS X, Windows 8+).

Key Features

  • ATmega32u4 @ 8 MHz – 3.3V logic, 32KB flash, 2KB RAM
  • Native USB – Built-in USB bootloader, serial debugging, and HID device support
  • Bluetooth Low Energy (nRF51822) – iOS and Android compatible
  • Pre-Soldered Standard Headers – Ready for breadboard use immediately
  • UART Service – Transparent serial data pipe between BLE device and microcontroller
  • AT Command Set – Full control over BLE behaviour, GATT services, and advertising
  • BLE HID Keyboard – Act as a wireless keyboard for compatible devices
  • Over-the-Air Updates – Update BLE module firmware via iOS or Android
  • 20 GPIO Pins – Including 10 analogue inputs and 7 PWM outputs
  • Hardware Serial, I2C & SPI – Full peripheral support
  • Built-in LiPo Charger – 100 mA charging with status indicator LED
  • Battery Monitoring – Battery voltage routed to an analogue pin via divider
  • 3.3V Regulator – 500 mA peak current output

Specifications

  • Dimensions – 51 × 23 × 8 mm (without headers)
  • Weight – 5.7 g
  • Mounting – 4 mounting holes

Also Available

Ideal For

  • Phone-controlled projects via iOS or Android
  • Wireless sensor data transmission
  • BLE HID keyboards and controllers
  • Bluetooth beacons and proximity applications

Package Contents

  • 1× Assembled and tested Feather 32u4 Bluefruit LE with pre-soldered headers
Tip: This version comes with standard headers pre-soldered. If you need to stack FeatherWings, consider the stacking headers version.
Note: LiPo battery and USB cable are sold separately.