For many of us, the first robot we saw rolling on powered wheels at the end of actively articulated legs was when footage of the Boston Dynamics ‘Handle’ project surfaced a few years ago.

Not only has [Joop Brokking] built an easy to make balancing robot but ... Self-balancers are a milestone in your robot building life. They stand on two-wheels, using a PID control loop to actuate ...

The latest innovation uses one omni wheel with two motors to balance itself in two directions.

At less than one and a half inches tall, roughly the same height as a LEGO minifigure, the world's smallest self-contained ...