The Pololu 3pi robot is a small-size, 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. This little robot excels in line-following and maze-solving competitions.

If you have C programming experience and want to learn robotics, the 3pi robot is a great platform for you. At its heart is an Atmel ATmega328P microcontroller running at 20 MHz and featuring 32 KB of flash program memory, 2 KB RAM, and 1 KB of persistent EEPROM memory. The popular, free GNU C/C++ compiler works perfectly with the 3pi, Atmel Studio provides a comfortable development environment, and an extensive set of libraries provided by Pololu makes it a breeze to interface with all of the integrated hardware. The 3pi is also compatible with the popular Arduino development platform. Pololu provides a number of sample programs to show how to use the various 3pi components, as well as how to perform more complex behaviors such as line following and maze solving.


  • processor: Atmega328P
  • motor driver: TB6612FNG
  • motor channels: 2
  • user I/O lines: 2
  • minimum operating voltage: 3 V
  • maximum PWM frequency: 80 kHz

Part List

  • 1x 3pi robot



Diameter 9.4 cm

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Pololu 3pi Robot

  • Pololu
  • The 3pi Robot is an affordable, small-size, high-performance mobile robotic platform for advanced users based on Atmega328P processor. If you have C programming experience, you'll enjoy Pololu's tutorials and examples to operate this robot.
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  • Availability: 1 (France)
  • 85.80€ Euro 68.67€ Euro
  • EUR 188.85 Left For Free Shipping

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Tags: pololu