The Pololu Zumo 32U4 OLED robot is a versatile tracked robot based on the Arduino-compatible ATmega32U4 MCU. It includes two 50:1 HP micro metal gearmotors along with integrated dual motor drivers, a graphical OLED display, quadrature encoders, line sensors, side and front proximity sensors for detecting objects, and a full IMU for detecting impacts and tracking orientation. 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 a USB cable and your Zumo is ready for programming.

The Zumo 32U4 OLED robot is available fully assembled with three different motor options (see the Motors section below for more information on how these different gear ratios perform):

• Assembled with 50:1 HP motors – highest speed and lowest torque of the three options
• Assembled with 75:1 HP motors- average speed and torque
• Assembled with 100:1 HP motors- highest torque and lowest speed

This version of the Zumo 32U4 OLED robot (item #4991) ships fully assembled with a pair of 50:1 HP micro metal gearmotors (with extended motor shafts). As described above, two assembled versions are also available with higher gear ratios (so they are both slower but able to deliver more torque).