In stock, ships same business day if ordered before 2PM
Delivered by Tue, 5th of Mar
The Zumo 32U4 OLED is a highly integrated, user-programmable and customizable tracked robot. It measures less than 10 cm on each side and weighs approximately 275 g with batteries (160 g without), so it is both small enough and light enough to qualify for Mini-Sumo competitions, but its versatility makes it capable of much more than just robot sumo battles.
At the heart of the Zumo 32U4 is an ATmega32U4 AVR microcontroller from Microchip (formerly Atmel), and like Pololu's A-Star 32U4 programmable controllers, the Zumo 32U4 features a USB interface and ships preloaded with an Arduino-compatible bootloader. A software add-on is available that makes it easy to program the robot from the Arduino environment, and Pololu have Arduino libraries and example sketches to help get you started. A USB A to Micro-B cable (not included) is required for programming. For advanced users who want to customize or enhance their robots with additional peripherals, the robot’s power rails and microcontroller’s I/O lines can be accessed via 0.1"-spaced through-holes along the sides and front of the main board.
The Zumo 32U4 features two H-bridge motor drivers and a variety of integrated sensors, including a pair of quadrature encoders for closed-loop motor control, a complete inertial measurement unit (3-axis accelerometer, gyro, and magnetometer), five downward-facing reflectance sensors for line-following or edge-detection, and front- and side-facing proximity sensors for obstacle detection and ranging. Three on-board pushbuttons offer a convenient interface for user input, and a 128×64 graphical OLED display, buzzer, and indicator LEDs allow the robot to provide feedback.
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):
The Zumo 32U4 OLED robot is also available as a kit (without motors) for those who would prefer to assemble it themselves or who want to use different motors than those in the three assembled versions.
Details for item #4993
This version of the Zumo 32U4 OLED robot (item #4993) ships fully assembled with a pair of 100:1 HP micro metal gearmotors (with extended motor shafts). As described above, two assembled versions are also available with lower gear ratios ( so Pololu are both faster but cannot deliver as much torque).
This is a newer Zumo 32U4 OLED Robot with a graphical OLED display. For its original version counterpart with an LCD, see the Zumo 32U4 Robot (Assembled with 100:1 HP Motors).
You can use the following table to compare these three gear ratios in more detail. The first four columns are specifications of the motors themselves, while the last column is the measured top speed of a Zumo chassis loaded to a weight of 500 g and driven with these motors. Note that the specifications are for 6V operation, which is approximately the voltage you would get with four alkaline batteries; four NiMH AA cells will typically provide less than 5V.
|Free-Run Speed@ 6V
|Stall Torque@ 6V
|Stall Current@ 6V
|Top Zumo Speed@ 6V and 500g
|50:1 HP or 50:1 HPCB
|75:1 HP or 75:1 HPCB
|100:1 HP or 100:1 HPCB
Batteries (not included)
The Zumo 32U4 robot runs off of four AA batteries. It works with both alkaline and NiMH batteries, though Pololu recommend using rechargeable AA NiMH cells.
Comparison with the Zumo robot kit for Arduino (with Zumo Shield)
Pololu's older Zumo robot for Arduino, built with a Zumo Shield, is another Arduino-compatible robotic platform based on the Zumo chassis. The Zumo Shield mounts to the Zumo chassis and features motor drivers and various sensors, but it does not have an integrated microcontroller; rather, it is designed to interface with boards that have a standard Arduino form factor, like an Arduino Uno, Arduino Leonardo, or A-Star 32U4 Prime, and these boards serve as the main controller for the robot.
A Zumo 32U4 OLED robot (left) and a Zumo robot for Arduino with an A-Star 32U4 Prime LV (right).
By contrast, the Zumo 32U4 OLED includes an on-board ATmega32U4 microcontroller (the same one used in the Leonardo and A-Star 32U4 boards), combining the functions of the Zumo Shield and the separate Arduino controller into a single, compact board that is just as easy to program as a standard Arduino or A-Star thanks to its USB interface and preloaded Arduino-compatible bootloader. The Zumo 32U4 retains all the features of the Zumo shield (e.g. dual motor drivers, inertial sensors, and buzzer) while adding many new features, including dual quadrature encoders, proximity sensors, a graphical OLED display, and two extra user pushbuttons.
Some of the pin mappings and software libraries differ between the Zumo 32U4 and Zumo robot for Arduino, so programs written for one robot generally need to be modified to work on the other.
|96L × 99W × 39H mm
|assembled with 100:1 HP motors
|PCB dev codes:
|Other PCB markings:
Documentation and other information
This download contains the Windows drivers for the A-Star 32U4 and the rest of Pololu's 32U4 family of boards.
Schematic diagram of the Zumo 32U4 OLED (408k pdf)
3D model of the assembled Zumo 32U4 OLED Robot (44MB step)
This model uses simplified models of the control electronics to reduce the file size. More detailed models are available separately of the Zumo 32U4 OLED main board (24MB step) and Zumo 32U4 front sensor array (4MB step).
This DXF drawing shows the locations of all of the board’s holes.
The Zumo32U4 library for the Arduino IDE helps interface with the on-board hardware on the Zumo 32U4 robot.
This repository contains Arduino add-on files, Windows drivers, and bootloaders for the A-Star 328PB, A-Star 32U4, and the rest of Pololu's 32U4 family of boards.
Microchip’s product page for the ATmega32U4 AVR microcontroller, with links to its datasheet, application notes, and other resources.
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Our physical address (here's a PDF which includes other key business details):
Unit 18, 132 Garden Grove Parade
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