Single-channel reflectance sensor from the QTR-MD series, 8 mm wide, featuring an RC output and a side-entry connector. Designed for line detection, surface contrast measurement, and edge detection in mobile robotics and automation systems. Pololu 4140

everse voltage protection module operating in the 4–75 V range and up to 17 A, based on a MOSFET with very low Rds(on). Does not block reverse current. Designed for higher-current power systems, including battery-powered and motor-drive applications. Pololu 5359

Reverse voltage protection module operating in the 4–75 V range and up to 8 A, based on a low-resistance MOSFET with Rds(on) below 15 mΩ. It does not block reverse current. Designed for power supply systems, including battery-powered applications. Pololu 5358.

Mini Maestro 12 in kit version is a multifunctional controller for controlling servos, reading sensors, and executing motion sequences without a computer. Excellent for use in robotics, animatronics, and interactive systems, it enables flexible motion control and peripheral management from a PC or microcontroller.

Mini Maestro 18 in assembled version is a precise servo controller and a universal I/O expander for robotic, animatronic, and interactive projects. Thanks to its autonomous operation capabilities, multi-channel support, and flexible input/output configurations, it is used in advanced installations requiring smooth motion control and response to environmental signals.

Mini Maestro 24 (kit) is a flexible controller for advanced applications with multiple servos, offering sophisticated motion control, signal reading, and autonomous operation capabilities. It is ideal for use in robotics, animatronics, and embedded systems as a precise controller and input/output expander.

The Pololu 779 15 cm servo extension with two female JR connectors enables easy and flexible connection of devices with 3-pin male connectors. It is used in robotics, automation, and RC systems to integrate servos, sensors, and controllers while maintaining the appropriate pitch and line designation.

The Pololu 780 30 cm servo extension with two female JR connectors enables flexible connection of devices with 3-pin 2.54 mm pitch connectors. The twisted-wire construction reduces EMI interference, and compatibility with RC standards makes it suitable for modeling, robotics, and control systems.

The Pololu 785 60 cm servo extension with a flat cable and female JR connectors allows flexible connection of devices with 3-pin 2.54 mm pitch connectors. It facilitates the integration of RC systems, control modules, and sensors in robotic and modeling projects.

Small, plastic support ball, 3/8" diameter (approx. 9.5 mm). It can be used as a support element in a two-wheeled mobile robot. Pololu 950

Small, plastic support ball, 1/2" diameter (approx. 12.7 mm). It can be used as a support element in a two-wheeled mobile robot. Pololu 952

Small, metal support ball, 1/2" diameter (approx. 12.7 mm). It can be used as a support element in a two-wheeled mobile robot. Pololu 953