Sparkfun Electronics Arduino Fio V3

The Arduino Fio V3 is a new spin on the Arduino Fio hardware powered by the ATmega32U4. It's very capable XBee-ready development board. The JST-connector and 3.3v system voltage make this a great development tool for portable devices, simply plug in a Li-Poly battery and you're ready to go. Wireless sensor networks and communication are made easy by the on-board XBee socket. The ATmega32U4, running at 8MHz, makes it possible for you to use the on-board USB jack not only to charge a connected Li-Poly battery but to actually program the device! Because this board uses a similar bootloader to the one on the Pro Micro. Features :