Harmonic Bionics has created a new development board specifically designed to easily connect Arduino boards, Arduino Shields and other Arduino based on supported boards with EASE.

It only applies to certain microcontrollers, but he provides example Arduino code showing how handy this can be for battery-powered projects.

This morning a new one came our way. [Johan Kanflo]’s AAduino is an Arduino clone with an onboard RF module that fits within the form factor of an AA battery.

Behind the delightfully punny name, you'll find an Arduino-compatible board the size of an AA battery.