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Zumo Robot v1.2 (Assembled with 75:1 HP Motors)

Zumo Robot v1.2 (Assembled with 75:1 HP Motors)

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SKU:MLE00787

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Zumo Robot v1.2 (Assembled with 75:1 HP Motors)

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 measures less than 10 cm on each side and weighs approximately 300 g with an Arduino Uno and batteries (165 g without, as shipped), so it is both small enough and light enough to qualify for Mini-Sumo competitions. 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 control board is essentially a shield for the A-Star 32U4 Prime, Arduino Uno or Arduino Leonardo, each of which can be plugged directly into the shield’s male header pins, face down. (It is not compatible with the Arduino Mega or Due, but it can be used with older Arduinos that have the same form factor as the Uno, such as the Duemilanove.) The shield includes dual motor drivers, a buzzer for playing simple sounds and music, a user pushbutton, and a 3-axis accelerometer, compass, and gyroscope for sensing impacts and tracking orientation. It also boosts the battery voltage to power the Arduino and breaks out the Arduino I/O lines, reset button, and user LED for convenient access and to accommodate additional sensors.

The robot ships as shown in the main product picture; no assembly or soldering is required. An appropriate Arduino (or compatible controller) and four AA batteries are required but not included.

Features

  • Integrated 75:1 HP micro metal gearmotors that offer a good blend of speed (up to 2 feet per second), power, and control.
  • Mounted array of six IR reflectance sensors that allows the Zumo to detect contrasts in reflectivity directly beneath its blade, which can be used for following lines or detecting edges (e.g. the white outer area of a sumo ring or the edge of a table).
  • Integrated DRV8835 dual motor drivers capable of delivering enough current for the Zumo’s two high-power gearmotors.
  • Piezo buzzer for playing simple sounds and music. The buzzer is controlled by one of the Arduino’s PWM outputs, so tones can be generated in the background without taking up a lot of processing power.
  • Integrated LSM303D 3-axis accelerometer and 3-axis magnetometer that can be used to detect impacts. The compass gets a lot of interference from the motors, batteries, PCB, and its surroundings, so it is not generally useful for precision navigation, but we have found that with proper calibration, it can be used for rough orientation measuring in many environments. This part is an upgrade over the LSM303DLHC accelerometer/magnetometer IC included on previous versions of the Zumo shield for Arduino.
  • Integrated L3GD20H 3-axis gyroscope that can be used to track rotation. This is new on the v1.2 version of the Zumo shield; previous versions did not include a gyro. With this sensor and the LSM303D mentioned above, the shield effectively has a built-in MinIMU-9 v3 IMU module that can optionally be used to make a attitude and heading reference system (AHRS) so that your robot can its orientation.
  • Optional user pushbutton on pin 12.
  • 7.5 V boost regulator for powering the Arduino from the Zumo’s 4 AA batteries.
  • Convenient access to Arduino I/O lines, the pin 13 user LED, and the Arduino reset line via the shield.
  • General-purpose prototyping areas and an expansion area at the front for connecting additional sensors.
  • Compatible with the Arduino Uno R3 and Arduino Leonardo. Can also be used with older Arduinos that have the same form factor, like the Duemilanove.
  • Arduino libraries and sample code make getting started easy.
  • Detailed user’s guide.

Dimensions

Size: 98mm × 98mm × 39mm
Weight: 165 g

Required accessories (not included)

Arduino R3, top view.
  • An Arduino or compatible control board. The Zumo Shield works with the A-Star 32U4 Prime, Arduino Uno and Arduino Leonardo. It is not compatible with the Arduino Mega or Due, but it can be used with older Arduinos that have the same form factor as the Uno, such as the Duemilanove. (Other Arduino-compatible controllers might work with the Zumo robot, but support for them will be limited and they might require modification.
  • Four AA batteries. The Zumo chassis works with both alkaline and NiMH batteries, though we recommend rechargeable NiMH cells.