The Arduino Bit gives you the power to code your littleBits circuits, allowing you to control the way your lights, buttons, motors, sensors, and other Bits interact. You can now easily incorporate programming into your littleBits circuits! It’s everything you know and love about Arduino without the breadboarding, soldering or wiring. Simply plug into your computer, snap together needed Bits, and program away! You focus on the code, we'll cover the electronics.

We’ve also partnered with codebender to let you easily embed code in your invention page and upload it directly - no integrated development environment (IDE) needed!

  • Build and code with our getting started guides
  • Write and share your code using codebender or create using the Arduino™ programming environment
  • Communicate with software (Processing, MaxMSP, Flash etc…)
  • Connect modules with 3 inputs and 3 outputs using our bitSnap™ magnetic connector as well as additional I/O for advanced hardware interaction
  • Access to community support from Arduino AND littleBits

  • Forums
  • Arduino Programming Guides
  • Note: The Arduino At Heart module requires a power module to function [not included]. If you’re a littleBits newbie, we recommend the Arduino Coding Kit to get started. If you already have a littleBits Kit, you’re all set!

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    Make it With the Arduino Module

    #HackYourHabits IOT: Agriculture Automation

    Littlebits in Agriculture! Isn't that just cool to imagine? I felt it was tiring to water the plants every day. Also, if we miss...

    #HackYourHabits IOT: Water Tank Automation

    It's a mundane activity to switch on the motor when your tank gets empty and switch it off when the tank overflows. This steals mo...

    Pong with Lego and Littlebits

    Well , just a recreation that somebody else did about the old traditional game Pong. I made it for a talk given in the Arduino Day...

    Rain sensor connected to littleBits Arduino

    Based on a question from the forum I just wanted to present all the currently available information here.

    Bits on a string part 5

    Episode 5 of the continuing story of the Dulcimer powered by Littlebits.See episode 1 for the making of the 3-string dulcimer that...

    "LittleBits, Blink LED When Somebody Tweets About [...]"

    Creating littleBits Twitter LED notification with Node.js using Johnny-Five and PubNub. You can also read the tutorial at htt...

    Tips & Tricks

    Tips & Tricks
    Tips & Tricks: Arduino Module

    Welcome to the wide world of Arduino! The Arduino At Heart™ module allows you to easily incorporate computer programming into your...

    Perfect Additions to the Arduino Module

    Arduino Coding Kit

    Contains 8 modules to get you started with electronics and programming.


    The cloudBit is the easiest way to create internet­-connected devices. You can now snap the internet to anything! Retrofit your th...

    Proto Module

    If there is a littleBits module that doesn’t exist, you now have the power to make it. The proto module is what littleBits eng...


    This power module lets you use a 9 volt battery to supply electricity to your littleBits. To make the simplest littleBits circuit,...

    Technical Specs

    • Dimensions (mm): 20.0(H) x 77.0(W) x 149.0(D)
    • Product Weight: 0.02 lbs (0.01 kg)
    • Recommended Age: 14+
    • SKU: 650-0010
    • UPC: 810876020282