Module with 4 QTR type optocoupler with analog output. The module operates from 2.9 V to 5.5 V, detects objects at a distance of up to 40 mm. The sensor will be used in projects that require detection of changes in the ground, e.g. in linefollower robots. Pololu 4204

Shunt regulator with a constant voltage of 33V, bypass resistance 4Ohm and a total of 12 SMT shunt resistors on both sides of the PCB with the possibility of adding an external potentiometer to adjust the preset voltage. Pololu 3776

Motor with 20 mm diameter and 43 mm length, 63:1 metal gear, 6 V operating voltage, 0.15 A to 2.9 A power consumption, 230 RPM speed and 4 kg*cm maximum torque. Pololu 3714

A step-down converter module that allows you to reduce the input voltage from 12.2–36 V to a stable 12 V, ensuring high efficiency thanks to SMPS technology. A maximum output current of 600 mA allows you to power microcontrollers, IoT modules, and other electronic systems. The device is equipped with short circuit and overheating protection and offers very low quiescent current. Pololu 5597

A compact Hall-effect current sensor that provides accurate DC and AC current measurement within a ±10 A range with galvanic isolation. It features an analog VOUT output with a sensitivity of 132 mV/A and a 150 kHz bandwidth, enabling fast and precise readings in dynamic systems. The module operates over a wide temperature range of -40°C to 125°C, and the low current path resistance (~1.6 mΩ) minimizes energy loss. Its small size and flexible mounting options make it ideal for prototyping, industrial systems, and space-constrained projects. Pololu 5440

50:1 Micro Metal Gearmotor HP with Extended Motor Shaft

Motor with 20 mm diameter and 41 mm length, 25:1 metal gear, 6 V operating voltage, 0.15 A to 2.9 A power consumption, 570 RPM speed and 1.6 kg*cm maximum torque. Pololu 3462

Miniature, 12V brush DC motor with metal gear and 15.25:1 gear ratio. It has a cross section of 10 × 12 mm, and the D-shaped output shaft with a length of 9 mm and a diameter of 3 mm. Pololu 4786

100:1 Micro Metal Gearmotor with Extended Motor Shaft

Step-Down DC-DC converter module based on the D24V150F9 chip. Input voltage 11 ... 40V, output voltage 9V (max 15A). Pololu 2884

TB67S128FTG stepper motor driver module powered by 6.5-44V voltage and 2.1A operating current. The controller allows you to control the movement of the engine with up to 8 different resolutions (up to 1/128 step). Pololu 2998

The ACS72981 current sensor module uses the Hall effect to accurately and safely measure AC and DC current, providing electrical isolation of the current path. With a wideband analog output (up to 250 kHz) and low conduction resistance (0.2 mΩ), it minimizes energy loss and offers a fast response time of less than 2 µs. Pololu 5272

A compact Hall-effect current sensor that provides accurate DC and AC current measurement within a ±10 A range with galvanic isolation. It features a high-sensitivity analog VOUT output with a 150 kHz bandwidth, enabling fast and precise readings in dynamic systems. The module operates over a wide temperature range of -40°C to 125°C, and the low current path resistance minimizes energy loss. Its small size and flexible mounting options make it ideal for prototyping, industrial systems, and space-constrained projects. Pololu 5444

This step-down converter module allows you to reduce the voltage from 6-60V to a stable 6V at a current of up to 11A. Its high efficiency of up to 95% and low power losses make it ideal for applications requiring high current and stable power. The device features built-in overcurrent, thermal, and reverse connection protection, as well as a soft-start function and a Power Good indication. Pololu 5673

298:1 Micro Metal Gearmotor

1000:1 Micro Metal Gearmotor

A set of two white plastic brackets for mounting micro Pololu motors. Mounting screws and nuts are included. Pololu 1086

This compact breakout board is for ROHM’s BD65496MUV motor driver, which offers an operating voltage range of 2 V to 16 V and can deliver a continuous 1.2 A to a single brushed DC motor. Pololu 2960

This gearmotor is a miniature high-power, 6 V brushed DC motor with long-life carbon brushes and a 9.96:1 metal gearbox. It has a cross section of 10 × 12 mm, and the D-shaped gearbox output shaft is 9 mm long and 3 mm in diameter. This version also has a 4.5 × 1 mm extended motor shaft.

A step-down converter module that allows you to reduce the input voltage from 9.2–36V to a stable 9V, ensuring high efficiency thanks to SMPS technology. A maximum output current of 600mA allows you to power microcontrollers, IoT modules, and other electronics. The device is equipped with short circuit and overheating protection and offers very low quiescent current. Pololu 5596