Adabot has always wanted to join the circus -- and you can help Adabot fulfill this dream by building a tightrope riding, balanced unicycle bot!

This project uses the Circuit Playground Express for brains, and the Crickit platform to provide the power to the gearbox DC motor.

You'll make a cardboard chassis, frame, and armature, then dress it up with Adabot costuming.


These are the parts you'll use to build your bot.

1 x Adafruit CRICKIT
for Circuit Playground Express
1 x Circuit Playground Express
Round, Awesome Microcontroller Board

or, you can use the yellow TT motor, it can't go quite as slow, but works well, too!

1 x TT Motor DC Gearbox
Plastic gear -- 1:48
1 x TT Motor Pulley
36mm Diameter
1 x Male DC Power adapter
2.1mm plug to screw terminal block


In addition to the parts above you'll need

  • corrugated cardboard
  • hobby knife or scissors
  • small Philips screwdriver
  • string or cord
  • brass paper fastener
  • white glue or hot melt glue and a glue gun
  • two M2.5 x 12mm screws and nuts
  • an M3 x 8mm screw
  • a toothpick

For the Adabot costuming overlay, you'll need either a color printer and some thick printer paper, or cardstock in light blue, royal blue, white, and black to make the cutout layered version designed by the Ruiz brothers.

This guide was first published on May 29, 2018. It was last updated on Jul 14, 2024.

This page (Overview) was last updated on Mar 08, 2024.

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