3pi Robot and Accessories

Pololu item #: 975
Price: $99.95
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The Pololu 3pi robot is a complete, high-performance mobile platform featuring two micro metal gearmotors, five reflectance sensors, an 8×2 character LCD, a buzzer, and three user pushbuttons, all connected to a C-programmable ATmega328 microcontroller. Capable of speeds exceeding 3 feet per second, 3pi is a great first robot for ambitious beginners and a perfect second robot for those looking to move up from non-programmable or slower beginner robots.

Pololu item #: 1306
Price: $111.95
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Buy an USB AVR programmer with your 3pi robot and save! A USB A to mini-B cable is included.

Pololu item #: 2151
Price: $149.95
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The Pololu m3pi robot consists of a 3pi robot base with a fully assembled m3pi expansion board as its second level. This expansion board enables the use of a powerful 32-bit mbed development board as the robot’s high-level controller, which offers significantly more processing power and free I/O lines than the 3pi’s built-in 8-bit AVR microcontroller. There are also sockets for Wixel and XBee wireless serial modules as well as prototyping space for additional sensors and electronics.

Pololu item #: 2153
Price: $189.95
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This combination deal includes everything you need for an mbed-controlled m3pi robot. It consists of one mbed NXP LPC1768 development board and one fully-assembled m3pi robot.

Pololu item #: 2152
Price: $27.95
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The m3pi expansion kit contains everything you need to turn your 3pi robot into an enhanced m3pi robot. The expansion PCB ships with all the surface-mount parts populated, but the included headers, buttons, and connectors must be soldered in.

Pololu item #: 976
Price: $19.95
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This kit gives you everything you need to add a second level to your 3pi robot. In this version, the LCD pins are brought up to the expansion board from the base via extended headers for your own custom use. This red printed circuit board can also serve as a general-purpose round prototyping board.

Pololu item #: 977
Price: $19.95
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This kit gives you everything you need to add a second level to your 3pi robot. The red printed circuit board has cutouts that let you view the LCD below and make it easier to reach the power button, reset button, and programming header.

Pololu item #: 978
Price: $19.95
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This kit gives you everything you need to add a second level to your 3pi robot. In this version, the LCD pins are brought up to the expansion board from the base via extended headers for your own custom use. This black printed circuit board matches the color of the 3pi and can also serve as a general-purpose round prototyping board.

Pololu item #: 979
Price: $11.95
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This kit gives you everything you need to add a second level to your 3pi robot. The black printed circuit board matches the color of the 3pi and has cutouts that let you view the LCD below and make it easier to reach the power button, reset button, and programming header.

Pololu item #: 1039
Price: $5.95
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This product contains all of the hardware included in the 3pi expansion kit without cutouts, but it does not include the expansion PCB.

Pololu item #: 957
Price: $1.99
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This ball caster can be used as a replacement 3pi robot part or as a general-purpose ball caster. When mounted through a hole in a chassis that uses our micro metal gearmotors and our 32×7mm wheels, as on the 3pi, this ball caster is just the right height to keep the chassis level.