This self balancing robot still uses just two wheels, but it’s balancing very differently than we’re used to seeing. Where most of the projects use a form factor that’s similar to a Segway ...

Self-balancing robots have become a common hobby project, and they usually require two wheels to work. [James Bruton] has managed to single wheel balancing robot by adding gyroscopic stabilization.… ...

I’ve built a two-wheel balancing robot which used a gyro and accelerometer to stay stable. I’m using a Teensy 3.6 running a PID controller to keep the robot stable.