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3pi+ 2040 Robot
The 3pi+ 2040 is a versatile, high-performance, user-programmable robot that measures just 9.7 cm (3.8″) in diameter. At its heart is a Raspberry Pi RP2040 microcontroller (like the one on the Raspberry Pi Pico), a 32-bit dual-core Arm Cortex-M0+ processor running at 125 MHz, which can be programmed with C, C++, Arduino, or Python. The 3pi+ 2040 has 16 MB (128 Mbit) of flash memory that ships preloaded with a MicroPython interpreter, so you can get started right away by plugging into its USB C port and editing the included example Python programs. For advanced users who want to customize 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.
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The 3pi+ (or 3𝜋+) 2040 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 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 six RGB LEDs allow the robot to provide feedback.
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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+ 2040 robot is available as a kit or fully assembled:
| 3pi+ 2040 Version | Products | Micro Metal Gearmotor | Top Speed | Comments |
|---|---|---|---|---|
| Standard Edition | assembled or kit | 30:1 MP 6V | 1.5 m/s | good combination of speed and controllability |
| Turtle Edition | assembled or kit | 75:1 LP 6V | 0.4 m/s | longest battery life, easiest to control, good for swarm robots or introductory robotics courses |
| Hyper Edition | assembled or kit | 15:1 HPCB 6V | ~4 m/s | 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+ 2040 control board are available separately and can be combined with a pair of motors to make a custom kit.
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Products in category “3pi+ 2040 Robot”
| Pololu item #: 5001 | |
| Brand: Pololu | supply outlook |
| Status: Active and Preferred | |
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The Pololu 3pi+ 2040 robot is a palm-sized, high-performance mobile platform based on the Raspberry Pi RP2040 MCU. Its many features include dual quadrature encoders for closed-loop speed or position control, line sensors, front bump sensors, a full IMU (3-axis accelerometer, magnetometer, and gyro), six RGB LEDs, and a graphical OLED display. This Standard Edition version is assembled with 30:1 MP 6V Micro Metal Gearmotors, which offer a good combination of speed and controllability.
| Pololu item #: 5002 | |
| Brand: Pololu | supply outlook |
| Status: Active and Preferred | |
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The Pololu 3pi+ 2040 robot is a palm-sized, high-performance mobile platform based on the Raspberry Pi RP2040 MCU. Its many features include dual quadrature encoders for closed-loop speed or position control, line sensors, front bump sensors, a full IMU (3-axis accelerometer, magnetometer, and gyro), six RGB LEDs, and a graphical OLED display. This Turtle Edition version is assembled with 75:1 LP 6V Micro Metal Gearmotors, which allow for longer battery life than the other editions. The maximum robot speed is approximately 0.4 m/s, making it well suited for applications where slow, controlled speed is important, such as coordinated swarm robots and introductory robotics courses.
| Pololu item #: 5000 | |
| Brand: Pololu | supply outlook |
| Status: Active and Preferred | |
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The Pololu 3pi+ 2040 robot is a high-performance mobile platform based on the Raspberry Pi RP2040 MCU. Its many features include dual quadrature encoders for closed-loop speed/position control, line sensors, front bump sensors, a full IMU (3-axis accelerometer, magnetometer, and gyro), and a graphical OLED display. This Hyper Edition version is assembled with high-speed 15:1 HPCB 6V Micro Metal Gearmotors.
NOTE: This version is difficult to control and fast enough to damage itself from impacts, so it is only recommended for advanced users. A spare 15:1 gearbox is included.
| Pololu item #: 5004 | |
| Brand: Pololu | supply outlook |
| Status: Active and Preferred | |
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The Pololu 3pi+ 2040 robot is a palm-sized, high-performance mobile platform based on the Raspberry Pi RP2040 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. The many features of the 3pi+ include dual quadrature encoders for closed-loop speed or position control, line sensors, front bump sensors, a full IMU (3-axis accelerometer, magnetometer, and gyro), six RGB LEDs, and a graphical OLED display. This product is a kit; assembly (including soldering) is required.
| Pololu item #: 5005 | |
| Brand: Pololu | supply outlook |
| Status: Active and Preferred | |
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The Pololu 3pi+ 2040 robot is a palm-sized, high-performance mobile platform based on the Raspberry Pi RP2040 MCU, and this kit contains all the parts you need to build the Turtle Edition version, including a pair of 75:1 LP 6V Micro Metal Gearmotors. The many features of the 3pi+ include dual quadrature encoders for closed-loop speed or position control, line sensors, front bump sensors, a full IMU (3-axis accelerometer, magnetometer, and gyro), six RGB LEDs, and a graphical OLED display. This product is a kit; assembly (including soldering) is required.
| Pololu item #: 5003 | |
| Brand: Pololu | supply outlook |
| Status: Active and Preferred | |
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The Pololu 3pi+ 2040 robot is a palm-sized, high-performance mobile platform based on the Raspberry Pi RP2040 MCU, and this kit contains all the parts you need to build the Hyper Edition version, including a pair of 15:1 HPCB 6V Micro Metal Gearmotors. This product is a kit; assembly (including soldering) is required.
NOTE: This version is difficult to control and fast enough to damage itself from impacts, so it is only recommended for advanced users. A spare 15:1 gearbox is included.
| Pololu item #: 5006 | |
| Brand: Pololu | supply outlook |
| Status: Active and Preferred | |
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This is the control board for the 3pi+ 2040 robot, and it is included as part of the Standard Edition, Turtle Edition, and Hyper Edition 3pi+ 2040 kits and robots. It can be used as a replacement part for those products, or it can be assembled with the 3pi+ Chassis Kit, a pair of 6V Micro Metal Gearmotors with extended motor shafts, and a graphical OLED display to create a “custom edition” 3pi+ 2040 robot.
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