AAduino Arduino Compatible Board Fits Neatly into an AA Battery Holder
Johan Kanflo has been using Arduino compatible boards based on Tiny328 MCU with an ISM radio module (wireless Arduino clone), but he found that finding a case was not easy, and was quite not ready to to design its own and print it with a 3D printer. So instead he shrank the board to fit into an AA battery case bought on Ebay with two AA batteries taking the remaining slots. That’s the result.
AAduino board specifications:
- MCU – Atmel ATMega328p clocked at 8 MHz to save power
- Radio – RFM69C ISM transceiver module
- Sensors – Two DS18B20 temperature sensors
- Misc – Indicator LED
- Keystone battery terminals rotated 180° to act as positive and negative terminals.
- Power – 2x AA batteries
The project is also open source hardware, with all hardware files released under the MIT license on Github, where you’ll also find a demo sketch for the board.