[Johan Kanflo]’s AAduino is an Arduino clone with an onboard RF module that fits within the form factor of an AA battery ... temperature sensors and an indicator LED. He provides a handy ...

It only applies to certain microcontrollers, but he provides example Arduino code showing how handy this can be for battery-powered ... re interested in the low-level details, then check out ...

However, that has nothing on this even smaller incarnation of an Arduino ... room for one LED indicator. An amusing aspect of the board is how Kanflo attached battery terminals, including a ...