The Pololu 3pi+ 32U4 OLED robot is a complete, high-performance mobile platform based on the Arduino-compatible ATmega32U4 MCU, and this kit contains all the parts you need to build the Standard Edition version , including a pair of 30:1 MP 6V Micro Metal Gearmotors.
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Our Code: SKU-007781
Supplier Link: [Pololu MPN:4978]
The 3pi+ 32U4 OLED is a versatile, high-performance, user-programmable robot that measures just 9.7 cm (3.8″) in diameter. At its heart is an ATmega32U4 AVR microcontroller from Microchip (formerly Atmel), and like our A-Star 32U4 programmable controllers, the 3pi+ 32U4 features a USB interface and ships preloaded with an Arduino-compatible bootloader, so all you need to program it is a USB A to Micro-B cable (not included). A software add-on is available that makes it easy to program the robot from the Arduino environment, and we have Arduino libraries and example sketches to help get you started. For advanced users who want to customise or enhance their robots with additional peripherals, the robot’s power rails, power system controls, and microcontroller’s I/O lines can be accessed via several 0.1″-pitch expansion ports.
The 3pi+ (or 3𝜋+) 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 downwards-facing reflectance sensors for line-following or edge-detection, and left and right bump sensors along the front face of the robot. 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 robot also features a unique power system that runs the motors at a constant 8 V independent of the battery charge level, so the speed of the motors does not vary with the battery voltage.
The 3pi+ 32U4 OLED robot is available as a kit or fully assembled with three different motor options:
|3pi+ 32U4 OLED Version
|Micro Metal Gearmotor
|assembled or kit
|30:1 MP 6V
|good combination of speed and controllability
|assembled or kit
|75:1 LP 6V
|longest battery life, easiest to control, good for swarm robots or introductory robotics courses
|assembled or kit
|15:1 HPCB 6V
|very fast and difficult to control, easy to damage; only recommended for advanced users
For those who would prefer to use different motors than these versions above, the 3pi+ chassis and 3pi+ 32U4 OLED control board are available separately and can be combined with a pair of motors to make a custom kit.
This product is the kit version of the Standard Edition 3pi+ 32U4 OLED Robot. Assembly (including soldering) is required.
This kit includes:
This is a newer 3pi+ 32U4 OLED Robot Kit with a graphical OLED display. For its original version counterpart with an LCD, see the 3pi+ 32U4 Robot Kit with 30:1 MP Motors (Standard Edition Kit).
The original version of the 3pi+ 32U4 includes an 8×2 character LCD, while this newer 3pi+ 32U4 OLED incorporates a graphical OLED display instead. The name “3pi+ 32U4” can generally be used to refer to both the original (LCD) and OLED versions, and the documentation in our updated user’s guide covers both versions.
Our Arduino library for the 3pi+ 32U4 generally allows code written for the LCD version to work on the OLED version with minimal changes (and the reverse is also true as long as your code does not make use of the OLED’s graphical capabilities).
Original Pololu 3pi robot.
The 3pi+ 32U4 OLED offers many major improvements over the original 3pi, including:
The 3pi+ 32U4 uses a different microcontroller with different pin mappings compared to the older 3pi, and some of the software library interfaces are different, so programs written for the original 3pi will not work on the 3pi+ 32U4 without modification.
|97L × 96W × 36H mm
|Standard Edition (30:1 MP Motors)
|PCB dev codes:
|Other PCB markings:
User’s manual for the Pololu 3pi+ 32U4 robot.
This download contains the Windows drivers for the A-Star 32U4 and the rest of our 32U4 family of boards.
Arduino integrated development environment (IDE) software
This repository contains Arduino add-on files, Windows drivers, and bootloaders for the A-Star 328PB, A-Star 32U4, and the rest of our 32U4 family of boards.
Microchip’s product page for the ATmega32U4 AVR microcontroller, with links to its datasheet, application notes, and other resources.