MOSS is a collection of electronic blocks from the same company that brought us Cubelets. While the basic design certainly echos that of its stablemate, MOSS actually seems to share more genetic code with LittleBits than anything else. The system consists of a set of cubes with sensors, inputs and outputs, all color coded for easy assembly. It is possible to assemble to parts in incorrect orders (unlike with Cubelets) which is why the sets are recommended for ages eight and up.
The blocks have magnets on the corners, but don’t actually snap together themselves. Instead steel ball bearings placed in the corners secure the cubes together. Put a ball in all four corners and you’ll have a rock-solid base; go with just two and you’ve got a hinge. That flexibility is key to MOSS’s appeal.
You can build large and complex creations thanks to the sizable collection of electronic components and structural pieces that give your robots personality. For example, placing four flat pieces around a wheel, attached at the joint with a single ball bearing resulted in a model swing carousel.
While you might be worried that such a connection would be rather frail, it’s actually quite sturdy. Even when we accidentally dropped a simple circuit involving a servo and a light sensor the pieces stuck together (when all four corners were secured, at least). The pieces also lock into place with a satisfying click that really inspires confidence in the build quality.