DESCRIPTION
RETIRED PRODUCT – We’ve stopped stocking this product or it has been retired by the manufacturer and is no longer for sale. This page remains available for its resources and as a source of potential interest.
The 3pi+ 32U4 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 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.
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 downward-facing reflectance sensors for line-following or edge-detection, and left and right bump sensors along the front face of the robot. Three onboard pushbuttons offer a convenient interface for user input, and an LCD, 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.
FEATURES
- ATmega32U4 microcontroller with Arduino-compatible bootloader can be programmed directly through a USB connection
- Quadrature encoders on both motors for closed-loop position and speed control
- Full 9-axis IMU (three-axis gyro, accelerometer, and compass)
- Bottom-loading battery holders keep batteries accessible even if additional levels are added
- Full wrap-around bumper to protect electronics from collisions
- Two bump sensors on the front
RESOURCES
- Pololu A-Star 32U4 drivers for Windows (version 1.3.0.0)
- Schematic diagram of the 3pi+ 32U4 Control Board
- Pinout and power distribution diagrams of the 3pi+ 32U4 Control Board
- 3D models of the 3pi+ 32U4 Robot
- 3D model of the 3pi+ 32U4 Control Board
- Drill guides for the 3pi+ 32U4 Control Board
- Pololu3piPlus32U4 Arduino library
Quick Shipping and Professional Packaging
Through our long-term relationship with UPS, FedEx, DHL as well as a range of other world-class carriers, we are able to offer various shipping options. Our warehouse staff is expertly trained and will wrap your products according to our precise and precise specifications. Your items will go through a thorough examination and will be securely packaged before being shipped. We deliver to thousands of customers every day across different countries. This shows that we're committed to being the largest online retailer in the world. Both Europe as well as the USA have warehouses and distribution centres.
Note that orders containing more than one item are subject to a processing period that is based to the item.
Before shipping the items, our staff will carry out a thorough inspection on the items you purchased. Currently, most orders are shipped within 48 hours. The delivery time is estimated to be between 3 and 7 days.
Returns
We are not able to manage the stock in our warehouse or factory. The stock can change at any moment. It's possible that your order may be unable to fill after you place the order.
Our policy is for 30 days. If you haven't received your item within the 30 days period, we're unable to offer the option of a refund or exchange.
Your item should be in its original packaging and in good condition. It must also not be used. It must also be returned in its original packaging.
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