A compact buck module that reduces input voltage from 4 to 65 V to a stable 3.3 V at up to 700 mA. It features high efficiency, low quiescent current (<0.2 mA), and short-circuit and thermal protection, ensuring safe and efficient operation. Its small size and ease of integration make it ideal for mobile devices, battery-powered designs, and systems requiring stable power. Pololu 5432

Pololu High-Power Motor Driver 24v12

6-pin female JST SH-type connector that works with Micro Metal Gearmotor Encoders. Pololu 4762

Step-Down DC-DC converter module based on the D36V6F3 system. Input voltage 4 ... 50V, output voltage 3.3V (max. 600mA). Polol 3791

Mini Tamiya Plug with 10cm Leads, Male

Brushed DC motor in a housing 130 supplied with a voltage ranging from 3 to 12 V, with a rotational speed of 11500 RPM and a current consumption of up to 800 mA. Pololu 1117

A module that provides galvanically isolated, bidirectional I²C communication and isolated power supply, protecting devices from misconnections and voltage differences. Thanks to the TI ISO1640B device, it supports data transfer up to 1.7 MHz, and the power supply isolation via MPS MIE1W0505BGLVH eliminates ground loops and interference. Pololu 5392

The module protects the load against reverse polarity to -60 V and blocks the flow of reverse current to the power supply. It uses the LM74700-Q1 ideal diode controller and a MOSFET transistor. Thanks to its low impedance (1.5 mΩ), it supports currents up to 25 A continuous and 50 A transient, providing reliable protection and the possibility of easy assembly. Pololu 5389

Pololu 5654 is a four-channel JST PH and SH connector adapter for systems based on a 2.54 mm pitch. It facilitates the integration of signal and power wires in prototyping projects and electronic devices where 4-pin connectors are required.

ACS724LLCTR-10AB current sensor module with a DC and AC measurement range from -10 to +10 A. It communicates via an analog interface. Pololu 4043

Distance sensor module operating in TOF technology, operating range 4-400 cm, resolution up to 1 mm. Communication with the sensor via the I2C bus. Power supply through a built-in regulator with voltage from 2.6 to 5.5 V. Pololu 3415

The board allows you to attach cables to the microSD / TF card line. Supply voltage from 2.7 to 3.6 V. Polol 2597

Pololu MQ Gas Sensor Carrier

DRV8835 Dual Motor Driver Carrier

A4988 Stepper Motor Driver Carrier with Voltage Regulators

This small synchronous switching step-down (or buck) regulator takes an input voltage of up to 38 V and efficiently reduces it to 5 V. The board measures only 0.7″ × 0.8″, but it allows a typical continuous output current of up to 5 A. Typical efficiencies of 85% to 95% make this regulator well suited for high-power applications like powering motors or servos.

Bipolar stepper motor. It has a resolution of 200 steps/revolution (1.8° per step), rated voltage of 3.8 V, and has a current consumption of 0.67 A per coil. Pololu 1205

A small motor with a plastic 120:1 gear, the output shaft at an angle of 90°, operating voltage 4.5 V, current consumption from 0.08 A to 0.8 A, speed 120 RPM and a maximum torque of 1.4 kg*cm. Pololu 1123

The module protects the load against reverse polarity to -60 V and blocks the flow of reverse current to the power supply. It uses the LM74700-Q1 ideal diode controller and a MOSFET transistor. Thanks to its low impedance (5 mΩ), it supports currents up to 12 A continuous and 40 A transient, providing reliable protection and the possibility of easy assembly. Pololu 5383

Pololu 4811 is a set of two JST SH 2-pin side-entry adapters that enable connecting JST SH wires to breadboards and prototype circuits. Thanks to the standard 2.54 mm pitch and the side-entry connector layout, the module facilitates integration in projects with limited mounting space.