The Adafruit Feather 32u4 Bluefruit is a compact, versatile development board designed for portable microcontroller projects. With its sleek, feather-light design, it's perfect for building wireless applications that require Bluetooth Low Energy (BLE) communication. This board features an ATmega32u4 microcontroller running at 8MHz with 3.3V logic, offering 32K of flash memory and 2K of RAM. It supports USB connectivity and features built-in USB-to-serial programming and debugging, along with the ability to act as a mouse, keyboard, or MIDI device.
The Feather 32u4 Bluefruit is equipped with a Bluetooth Low Energy (BTLE) module based on the Nordic nRF51822 chipset, enabling seamless wireless communication with iOS and Android devices. This board is designed with portability in mind, featuring a built-in charging circuit for a 3.7V lithium polymer battery, making it suitable for mobile projects. It also includes a battery voltage monitoring system to help you keep track of power levels.
Additional features include a wealth of I/O options such as 20 GPIO pins, 7 PWM pins, 10 analog inputs, and support for hardware Serial, I2C, and SPI communication. The onboard Bluefruit LE module supports customizable AT commands, allowing you to define GATT services, manipulate advertisements, and access additional features like battery voltage monitoring and device status checks.
For users looking to build mobile-controlled projects, the Bluefruit app for iOS and Android enables quick prototyping with features like color picking, accelerometer data, and 8-button control. The board also supports Bluetooth HID devices, heart rate monitoring, and can act as a URI beacon. It includes over-the-air bootloading capabilities to keep the firmware updated without needing a physical connection.
This board is fully assembled and tested, with a USB bootloader for easy use with the Arduino IDE. It also comes with header pins, which can be soldered for use with breadboards. A lithium polymer battery and micro USB cable are not included but can be purchased separately.
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