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.

The RFM69C module is the part that provides ISM support. The AAduino also makes use of two DS18B20 temperature sensors, leaving room for one LED indicator.

So, what do you do when your Arduino project needs to operate in a remote area or as a portable device? There are LiPo battery shields available, and although they may work well, recharging ...