Zumo Robot for Arduino, v1.2 (Assembled with 75:1 HP Motors) by Pololu This Zumo robot is a low-profile tracked robot platform intended for use with an Arduino (or compatible device, such as an A-Star 32U4 Prime) as its main controller. It uses two 75:1 HP micro metal gearmotors to drive the treads, providing plenty of torque and a top speed of approximately 2 feet per second (60 cm/s). The Zumo robot includes a 0.036"-thick laser-cut stainless steel sumo blade mounted to the front of the chassis for pushing around objects like other robots. The Zumo robot has a reflectance sensor array mounted along the front edge of the Zumo (behind the sumo blade) allows the Zumo to detect features on the ground in front of it, such as lines for following or edges for avoiding. Required Accessories (Not Included): Arduino or compatible control board (Arduino Uno, Leonardo, NOT COMPATIBLE with Mega or Due). Four AA batteries (Alkaline or NiMH).