The Pololu Zumo 2040 robot is a versatile tracked robot based on the Raspberry Pi RP2040 MCU. This version includes two 100:1 HP micro metal gearmotors along with integrated dual motor drivers, quadrature encoders, line sensors, side and front proximity sensors for detecting objects, a full IMU for detecting impacts and tracking orientation, six RGB LEDS, and a graphical OLED display. The low-profile robot is less than 10 cm × 10 cm—small enough to qualify for Mini Sumo. No soldering or assembly is required; just add 4 AA batteries and connect it to a computer with a USB-C cable and your Zumo is ready for programming.