> **Source:** Core Electronics is an Australian maker-electronics retailer and manufacturer based in Newcastle, NSW, run by a team of makers and educators. We design and manufacture our own product lines (PiicoDev, CE originals) and are official retailers for iconic maker and industrial brands including Raspberry Pi, Arduino, Adafruit, SparkFun and DFRobot. Orders ship Australia-wide from our Newcastle warehouse. Prices are in AUD and include GST. Pricing, stock and dispatch on this page are generated from the store's live catalog. Full machine-readable index: https://core-electronics.com.au/llms.txt # 3pi+ 2040 Robot - Turtle Edition (75:1 LP Motors), Assembled **Type:** Product page · **SKU:** POLOLU-5002 · **Brand:** [Pololu](https://core-electronics.com.au/brands/pololu-australia) **Page:** https://core-electronics.com.au/3pi-2040-robot-turtle-edition-751-lp-motors-assembled.html ([markdown](https://core-electronics.com.au/3pi-2040-robot-turtle-edition-751-lp-motors-assembled.html.md)) 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... ## Pricing - **Price:** $314.95 (inc GST) — $286.32 AUD, exc GST - **Quantity discounts:** 3+ $274.86 (exc GST) · 5+ $266.27 (exc GST) ## Availability & dispatch - Available with a lead time — expect dispatch between Aug 19 and Aug 24. ## How to buy - **Build a cart:** compose `https://core-electronics.com.au/cart/link?items=POLOLU-5002:1` (comma-separated SKU:qty pairs) and share the link. Opening it shows a confirmation page with live pricing and stock before anything is added to the cart. - **Verify the cart first:** fetch `https://core-electronics.com.au/cart/link/POLOLU-5002:1.md` for live line prices (inc & exc GST, quantity discounts applied), stock and dispatch estimates, and totals. Append `/to/{AU-postcode}` (or `/to/{country-code}:{postcode}`) before `.md` for delivery options and prices to that destination. Unknown, retired, or out-of-stock SKUs are flagged. (Query form `cart/link.md?items=...` also works but some robots parsers refuse query strings here.) - **Checkout** is completed on-site and includes a captcha at the payment step. Share the cart link; checkout takes it from there. - **Search the catalogue:** `https://core-electronics.com.au/search/{query}.md` (URL-encode the query; pages 2-3 at `search/{query}/{page}.md`; `search.md?q=` also works) - **Payment methods, purchase orders, policies and contact details:** https://core-electronics.com.au/llms.txt ## Description 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. | \| [![](https://core-electronics.com.au/attachments/localcontent/0J12006_4317720343.jpg)](https://core-electronics.com.au/attachments/localcontent/0J12006_134781bd3bd.jpg) \| \|---\| \| 3pi+ 2040 Robot, front view. \| | \| [![](https://core-electronics.com.au/attachments/localcontent/0J12007_54404f22d0.jpg)](https://core-electronics.com.au/attachments/localcontent/0J12007_15614851601.jpg) \| \|---\|---\| \| 3pi+ 2040 Robot, side view. \| | \| [![](https://core-electronics.com.au/attachments/localcontent/0J12008_41084c4f8a.jpg)](https://core-electronics.com.au/attachments/localcontent/0J12008_1342821312c.jpg) \| \|---\|---\| \| 3pi+ 2040 Robot, rear view. \| | |---| The 3pi+ (or 3??+) 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. | [![](https://core-electronics.com.au/attachments/localcontent/0J12017_13310a38620.jpg)](https://core-electronics.com.au/attachments/localcontent/0J12017_2357558bc9f.jpg) | |---| | [![](https://core-electronics.com.au/attachments/localcontent/0J12018_86459f72e01.jpg)](https://core-electronics.com.au/attachments/localcontent/0J12018_151566bb743.jpg) | |---| 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](https://core-electronics.com.au/early-adopter-3pi-2040-robot-standard-edition-301-mp-motors-assembled.html) or [kit](https://core-electronics.com.au/early-adopter-3pi-2040-robot-kit-with-301-mp-motors-standard-edition-kit.html) | [30:1 MP 6V](https://core-electronics.com.au/30-1-micro-metal-gearmotor-mp-6v-with-extended-motor-shaft.html) | 1.5 m/s | good combination of speed and controllability | | Turtle Edition | [assembled](https://core-electronics.com.au/3pi-2040-robot-turtle-edition-751-lp-motors-assembled.html) or [kit](https://core-electronics.com.au/3pi-2040-robot-kit-with-751-lp-motors-turtle-edition-kit.html) | [75:1 LP 6V](https://core-electronics.com.au/75-1-micro-metal-gearmotor-lp-6v-with-extended-motor-shaft.html) | 0.4 m/s | longest battery life, easiest to control, good for swarm robots or introductory robotics courses | | Hyper Edition | [assembled](https://core-electronics.com.au/3pi-2040-robot-hyper-edition-151-hpcb-motors-assembled.html) or [kit](https://core-electronics.com.au/3pi-2040-robot-kit-with-151-hpcb-motors-hyper-edition-kit.html) | [15:1 HPCB 6V](https://core-electronics.com.au/15-1-micro-metal-gearmotor-hpcb-6v-with-extended-motor-shaft.html) | ~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](https://core-electronics.com.au/category/141/micro-metal-gearmotors-with-extended-motor-shafts) than these versions above, the [3pi+ chassis](https://core-electronics.com.au/3pi-chassis-kit-no-motors-or-electronics.html) and [3pi+ 2040 control board](https://core-electronics.com.au/3pi-2040-control-board.html) are available separately and can be combined with a pair of motors to make a custom kit. **What else you will need** - four [AAA batteries](https://core-electronics.com.au/rechargeable-nimh-aaa-battery-1-2-v-900-mah-1-cell.html): 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](https://core-electronics.com.au/category/280/3pi-plus-32u4-oled-robot)), but these steps generally remain the same for the 3pi+ 2040: **Details for item #5002** This product is the assembled **Turtle Edition** of the 3pi+ 2040 Robot, which features 75:1 LP 6V Micro Metal Gearmotors that have a lower top speed than the other editions while allowing for longer battery life. This version is well suited for applications where slow, controlled speed is important, such as coordinated swarm robots and introductory robotics courses. | \| [![](https://core-electronics.com.au/attachments/localcontent/0J12003_324852e670f.jpg)](https://core-electronics.com.au/attachments/localcontent/0J12003_627013dbed7.jpg) \| \|---\| | \| [![](https://core-electronics.com.au/attachments/localcontent/0J12004_26160e13170.jpg)](https://core-electronics.com.au/attachments/localcontent/0J12004_513083bc13e.jpg) \| \|---\|---\| | |---| A [kit version](https://core-electronics.com.au/3pi-2040-robot-kit-with-751-lp-motors-turtle-edition-kit.html) of this robot is also available. **Dimensions** | Size: | 97L × 96W × 36H mm | |---|---| | Weight: | 100 g[1](https://core-electronics.com.au/#note1) | **General specifications** | Processor: | RP2040 @ 125 MHz | |---|---| | RAM size: | 264 Kbytes | | Program memory size: | 16 Mbytes | | Assembled: | Y | | Version: | Turtle Edition (75:1 LP Motors) | **Identifying markings** | PCB dev codes: | 3pi04a | |---|---| | Other PCB markings: | 0J13959 | **Notes:** 1Of assembled robot without batteries.**Documentation and other information** - ![](https://core-electronics.com.au/attachments/localcontent/0J12003_52414d9ef2.jpg)**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)** - **Dimension diagram of the 3pi+ 2040 Robot (2MB pdf)** - **Dimension diagram of the 3pi+ 2040 Control Board (2MB pdf)** - **3D models of the 3pi+ 2040 Robot (18MB zip)** This file contains 3D models (in the STEP file format) of the 3pi+ 2040 Robot. These models use a simplified model of the control electronics to reduce the file size. A more detailed model of the 3pi+ 2040 Control Board (27MB step) is available separately. - **3D models of the 3pi+ Chassis Kit (13MB zip)** This file contains 3D models (in the STEP file format) of the 3pi+ Chassis Kit. Note that the models include [micro metal gearmotors](https://core-electronics.com.au/cat60) that are sold separately from the chassis. - **3D model of the 3pi+ 2040 Control Board (27MB step)** - **Front, top, and side views of the 3pi+ 2040 Robot (420k zip)** These DXF drawings make it possible to get various dimension measurements of the 3pi+ 2040 Robot. - **Drill guide for the 3pi+ 2040 Control Board (65k dxf)** This DXF drawing shows the locations of all of the board’s holes. **Recommended links** - **[3pi+ 2040 Robot Libraries and Example Code](https://github.com/pololu/pololu-3pi-2040-robot)** This repository contains libraries and example code for the Pololu 3pi+ 2040 Robot in MicroPython and C. ## Images - [Product image 1](https://core-electronics.com.au/media/catalog/product/P/O/POLOLU-5002-1.jpg)