These great Pololu products

The Romi chassis is a differential-drive mobile robot platform with a diameter of 6.5″ (165 mm). The plastic components making up the chassis are available in six colors, either individually or in kits including motors and battery contacts. Control electronics and quadrature encoders are also available.

This category includes the Balboa 32U4 Balancing Robot Kit, which includes control electronics, and Balboa Chassis Kit, which lets you supply your own electronics. Here you can also find Balboa accessories and the most recommended motors and wheels to complete the kits.

The Pololu Zumo is a tracked robot platform that is small enough to qualify for Mini Sumo competitions and works with a variety of micro metal gearmotors. You can use the chassis as the base for your custom robot or get one of our complete Zumo robots.

Take command of the speed and direction of your brushed DC motors using these controllers. This category includes single and dual serial motor controllers with a variety of features such as analog, RC, or USB control, speed/position feedback, channel mixing, and more.

Single and dual motor driver carriers get your brushed DC motor projects up and running quickly using modern H-bridges with high-performance MOSFETs that deliver hundreds of watts in a compact package. Give these boards a PWM signal and make your motors go!

Ensure your project gets the voltage it needs with our efficient switching voltage regulators.

This wide selection of brushed DC metal gearmotors lets you choose the optimal torque and speed for your particular application. These motors are available in a variety of sizes and gear ratios.

Our selection of plastic wheels and track systems.

Our ball casters are great third contact points for small differential-drive robots. These units have larger ball diameter-to-weight ratios than industrial units, giving your robot the ability to drive over larger obstacles without adding too much weight. Several sizes and ball options are available.