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

The proto module is what littleBits engineers use to build and prototype new modules. Hack into existing modules or invent a brand new one by connecting to printed circuit boards or solderless breadboards. With the proto module, you have direct access to power, ground and signal lines needed to take measurements and connect to other instruments.

Use the proto to get started developing your own module for the bitLab. Want more? Our Hardware Development Kit (HDK) has the works: 2 proto modules, bitSnaps and a perf module.

For pro tips, check out our Tips & Tricks, or watch the tutorial video below!

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Make it With the Proto Module

Perfect Additions to the Proto Module



Add powerful programming to your circuits with the LOGIC pack.

Light It


LIGHT IT is the perfect way to add more visual impact to your creations.

Gizmos & Gadgets Kit, 2nd Edition


Create and control your own app-enabled games, pranks, and crazy contraptions.

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: 650-0004