Adafruit Feather 32u4 Bluefruit LE - the "all-in-one" microcontroller board with Bluetooth LE, USB port and charging circuit for 3.7 V LiPo batteries. The Adafruit Feather 32u4 Bluefruit LE Board has an Atmel ATmega32u4 microcontroller that is operated at 3.3 V and clocked at 8 MHz. The chip has 32 KB of flash memory, 2 KB of RAM and an integrated USB controller, so that no FTDI is required for the serial connection, for example. With the on-board Bluetooth Low Energy chipset, the board is ideally suited for mobile applications that are controlled via current iOS and Android devices, for example. The board has a connection for 3.7 V LiPo batteries and a charging circuit. The board can be operated and the battery can be charged via the microUSB port. The Feather 32u4 Adalogger automatically.
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