Home > Atmel AVR, Hardware > AAduino Arduino Compatible Board Fits Neatly into an AA Battery Holder

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.

Click to Enlarge

Click to Enlarge

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
Triple AA Battery Case Closed

Triple AA Battery Case Closed

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.

Via Free Electrons Tweet

  1. April 20th, 2016 at 05:39 | #1

    Nice, next step is to replace the atmega by an esp8266…

  2. Pere
    April 20th, 2016 at 05:44 | #2

    Hi, this could be great for play with mysensors library and create nodes for sensor data.
    looks like mysensors sensermicro
    a lot of fun 😉

  3. December 3rd, 2016 at 11:22 | #3

    AAdruino is coming soon on Crowdsupply -> https://www.crowdsupply.com/johan-kanflo/aaduino

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