A 10-pack of adapter boards with 2-pin JST SH-type side-entry connectors for Pololu single-shaft micro metal gearmotors. Ideal for compact electronic and robotic designs requiring secure and space-efficient cable connections. Pololu 5099

This set of two quadrature encoders for 20D extended-shaft motors provides precise rotational speed monitoring with 20 pulses per revolution of the motor shaft. The devices utilize a magnetic disc and Hall-effect sensors operating from 2.7-18V, and the digital outputs can be connected directly to a microcontroller. The encoders mount directly to the back of the motor, and the compact design and 6-pin JST PH connectors facilitate integration into robotic projects and control systems. Pololu 5660

Pololu 5346 stepper motor driver based on the A5984 IC, designed for driving bipolar stepper motors in electronic and robotics projects. Pololu 5346

Aluminum Standoff: 1/4" Length, 4-40 Thread, M-F (4-Pack)

Pololu 4817 is a set of two JST SH 5-pin side-entry adapters that allow easy connection of JST SH wires to breadboards and prototype boards. Thanks to the side-entry wire insertion, the adapters are particularly useful in compact designs and projects requiring neat cable routing.

Single-channel brushed DC motor driver based on the MPQ6612A chip, enabling bidirectional motor control with a supply voltage of 4-40 V and up to 4 A continuous current. The module provides motor current sensing, active current limiting, overcurrent and thermal protection, and supports PWM control up to 200 kHz. The carrier board does not include soldered connectors, allowing direct soldering of wires or custom connectors. Pololu 5285

Single-channel IR reflectance sensor using an infrared LED and phototransistor to detect changes in surface reflectivity, generating an analog output voltage from 0–VCC. Operates at 2.9–5.5 V, with an optimal sensing distance of ~5 mm (up to 30 mm max), adjustable IR emitter brightness, and a 4-pin JST SH connector, designed for line detection, edge detection, and obstacle sensing in robotics and automation projects. Pololu 4240

Pololu 4812 is a set of two JST SH 3-pin top-entry adapters that facilitate integration of JST SH wires with breadboards and prototype circuits. Thanks to compatibility with the 2.54 mm pitch and support for voltages up to 50 V, the adapters are useful in prototyping power and signal circuits.

Pololu 5345 stepper motor driver based on the A5984 IC, intended for controlling bipolar stepper motors with 5V or 3.3V logic levels, equipped with soldered goldpin headers. Pololu 5345

Pololu 5343 stepper motor driver based on the A5984 IC, intended for controlling bipolar stepper motors with 5V or 3.3V logic levels, equipped with soldered goldpin headers. Pololu 5343

Pololu 5344 stepper motor driver based on the A5984 IC, intended for controlling bipolar stepper motors with 5V or 3.3V logic levels, supplied without soldered goldpin connectors. Pololu 5344

Single-channel bipolar stepper motor driver based on the MP6603 chip, supporting microstepping down to 1/8 step and operating with a motor supply voltage of 8-55 V. The module can deliver approximately 2 A continuous current per phase without additional cooling and up to 4 A peak, features adjustable current limiting via a potentiometer, and offers an interface compatible in many applications with popular A4988 carrier boards. Version without soldered header pins, intended for custom connector installation. Pololu 5690

Single-channel bipolar stepper motor driver based on the MP6603 IC, supporting microstepping down to 1/8 step and operating with a motor supply voltage of 8–55 V. The module can deliver up to approximately 2 A continuous current per phase without additional cooling and up to 4 A peak. It features adjustable current limiting via a potentiometer and a control interface compatible in many applications with popular A4988 driver carriers. This version includes factory-soldered header pins, allowing direct connection to breadboards or sockets compatible with A4988 modules. Pololu 5691

A module that provides galvanically isolated, bidirectional I²C communication (SDA and SCL lines), protecting devices from misconnections and voltage differences. Thanks to the TI ISO1640B chip, it supports data transfer up to 1.7 MHz. Pololu 5391

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

Aluminum Standoff: 1/8" Length, 4-40 Thread, F-F (4-Pack)

Aluminum Standoff: 3/16" Length, 4-40 Thread, F-F (4-Pack)

Pololu 5342 stepper motor driver based on the A5984 IC, intended for controlling a single bipolar stepper motor with current regulation and microstepping support. Pololu 5342

Reflectance sensor module with a single QTRX sensor and RC output, designed for detecting differences in surface reflectivity. Supply voltage 2.9–5.5V, low current consumption, version with side-entry JST-SH connector. Pololu 4340

Compact and efficient module designed for precise control of bipolar stepper motors, offering microstepping down to 1/32 step and maximum current up to 2 A in peak mode. Thanks to advanced features such as QuietStep (APFD) algorithm, built-in protections and pin compatibility with A4988, it is perfect for hobby, educational and industrial projects. Blue Edition version with four-layer board and 2 oz copper provides better heat dissipation, increasing reliability of operation even at higher loads. Pololu 5341