3pi+ 2040 Robot - Standard Edition (30:1 MP Motors), Assembled

SKU: POLOLU-5001 Brand: Pololu

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...

$274.95 AUD, inc GST

$249.95 AUD, exc GST

Available with a lead time
Expect dispatch between May 14 and May 20

Quantity Discounts:

3-6 $242.45 (exc GST)
6+ $237.45 (exc GST)

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.

3pi+ 2040 Robot, front view.

3pi+ 2040 Robot, side view.

3pi+ 2040 Robot, rear view.

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.

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

What else you will need

four AAA batteries: the 3pi+ robot works with both alkaline and NiMH batteries, though Pololu recommend rechargeable NiMH cells
a USB C cable to connect the robot to your computer for programming and debugging

Assembling the kit version

The following video shows the steps to assemble a different version of the 3pi+ robot (the 3pi+ 32U4 OLED robot), but these steps generally remain the same for the 3pi+ 2040:

Details for item #5001

This product is the assembled Standard Edition of the 3pi+ 2040 Robot. It features 30:1 MP 6V Micro Metal Gearmotors, which offer a good combination of speed and controllability.

A kit version of this robot is also available.

Dimensions

Size:	97L × 96W × 36H mm
Weight:	100 g¹

General specifications

Processor:	RP2040 @ 125 MHz
RAM size:	264 Kbytes
Program memory size:	16 Mbytes
Assembled:	Y
Version:	Standard Edition (30:1 MP Motors)

Identifying markings

PCB dev codes:	3pi04a
Other PCB markings:	0J13959

Notes:

1: Of assembled robot without batteries.

Documentation and other information

Pololu 3pi+ 2040 User’s Guide

User’s manual for the Pololu 3pi+ 2040 robot.

File downloads

Schematic diagram of the 3pi+ 2040 Control Board (305k pdf)
Pinout and power distribution diagrams of the 3pi+ 2040 Control Board (1MB pdf)

Product Comments

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Unit 18, 132 Garden Grove Parade
Adamstown
NSW, 2289
Australia

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