Adapter for the 6-pin JST SH connector (horizontal) with a pitch of 1 mm to the DIP holes, pitch of 2.54 mm. The set includes 3 modules. Pololu 4773

This simple board breaks out all five pins of a USB Micro-B connector to a 0.1″ pin spacing that is compatible with standard perfboards, solderless breadboards, and 0.1″ connectors. Pololu 2586

6-pin female JST SH-type connector that works with Micro Metal Gearmotor Encoders. Pololu 4763

Module with USB 2.0 type C connector with 2.54 mm pitch goldpin connectors. Polol 2585

The compact (0.4″ × 0.5″) D24V5F5 synchronous buck voltage regulator takes an input voltage of up to 36 V and efficiently reduces it to 5 V while allowing for a maximum output current of 500 mA. Pololu 2843

USB Mini-B Connector Breakout Board

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.

This tiny logic level shifter features four bi-directional channels, allowing for safe and easy communication between devices operating at different logic levels. Pololu - 2595

The ACS71240 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 120 kHz) and low conduction resistance (0.6 mΩ), it minimizes energy loss and offers a fast response time of less than 5 µs. Pololu 5245

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 (3 mΩ), it supports currents up to 20 A continuous and 50 A transient, providing reliable protection and the possibility of easy assembly. Pololu 5388

Prototype contact plate 400 points, dimensions 82 x 53 mm. In the middle of the plate there are mounting holes, which allows its use in connection with the Romi Chassis chassis. Pololu 4000

This SPST solid-state relay module allows for safe switching of DC circuits up to 60 V and 7 A, offering galvanic isolation and low conduction resistance (approx. 30 mΩ) thanks to the use of back-to-back MOSFET transistors. It features fast switching time (up to 1 ms), low control current consumption (approx. 10 mA), and the ability to control a signal from 2.7 to 40 V. Its compact design, lack of mechanical components, and the ability to mount on 2.54 mm connectors or screw terminals make the module a durable and quiet solution for systems requiring reliable isolation and long service life. Pololu 5420

A step-down converter module that allows you to reduce the input voltage from 4–36 V to a stable 3.3 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 5592

A module that provides galvanically isolated, bidirectional I²C communication (SDA and SCL lines), protecting devices from incorrect connections and voltage differences. Thanks to the TI ISO1640B chip, it supports data transfer up to 1.7 MHz. Pololu 5390

15:1 Micro Metal Gearmotor. Pololu 4784

Nylon Spacer: 6mm Length, 4mm OD, 2.7mm ID (50-Pack)

Pololu 2830

This breadboard-compatible module is an alternative to bulky power switches. It uses a small integrated slide switch to control a high-side power MOSFET that can deliver continuous currents up to around 8 A at 4.5 V to 40 V. Pololu 2814

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