3pi2

The 3pi2 is a compact, programmable robot platform developed by Pololu. It is designed for educational and hobbyist use, offering a robust foundation for learning about robotics, electronics, and programming. The robot features an ATmega328P microcontroller, the same processor found in many Arduino boards, making it compatible with the Arduino IDE and a wide range of existing Arduino libraries.

Its chassis is designed for agility and robustness, incorporating two DC motors with encoders for precise speed and position control. The 3pi2 includes a variety of sensors out-of-the-box, such as an array of five infrared reflectance sensors that can be used for line following, edge detection, and basic object sensing. It also has a 3-axis accelerometer and gyroscope for measuring orientation and motion.

Power for the 3pi2 is typically supplied by four AA batteries. The platform offers several expansion headers, allowing users to connect additional sensors, motor drivers, or other electronic components to customize its capabilities. Its onboard connections include a small speaker for audio feedback and a 128x64 graphical LCD for displaying information and sensor readings. The 3pi2's open-source firmware and extensive documentation make it an accessible and versatile platform for experimentation and project development in robotics.