This small synchronous switching step-down (or buck) regulator takes an input voltage of up to 36V and efficiently reduces it to 5V. The board measures only 0.7″ × 0.7″ yet delivers a typical continuous output current of up to 2.5A and features reverse voltage protection. Pololu 2858

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

Module with Flash memory W25Q64 with a capacity of 64 Mbit (8 MB). It communicates via the SPI interface. Adafruit 5636

This converter allows for easy connection of a computer to devices using the CAN bus via USB-C. Equipped with a GD32 microcontroller and a WCH CH340 chip, it ensures stable communication at speeds up to 921,600 bps. The adapter supports plug-and-play and allows for device control, diagnostics, and OTA firmware updates using dedicated software. Seeed Studio 100012096

An expansion board for XIAO modules that allows you to control seven output channels for slim, 3V COB LED strips. The board offers three high-current channels for main lighting and four low-current channels for fade-in and fade-out effects. Power can be supplied by a 3.7V Li-Po battery or a 5V/2A USB adapter, and a Grove I2C connector allows for sensor integration and intelligent light control. Seeed Studio 100079172

USB - UART converter based on the CH9102F chip. Compatible with the voltage of 3.3 V and 5 V, it has been equipped with a USB type C connector. Adafruit 5568

BOB-12731

MP6550 DC motor controller module. It can work with motors supplied with voltage from 1.8 to 22 V and current consumption up to 1.7 A. Pololu 4733

RGB LED strip controller with WiFi communication. It enables remote control of multi-colored strips with diodes powered with voltage from 5V to 28V using a mobile application. SL-LC01

DRV8711 stepper motor driver module powered by 8-50V voltage and 4A operating current. The controller allows you to control the movement of the engine with up to 9 different resolutions. Configuration via SPI interface. Pololu 3730

Gravity: 360 Degree Hall Angle Sensor is a rotation angle sensor measuring a value in the range of 0-360 ° with an analogue output, powered by 5V. DFRobot SEN0221

16-channel GPIO expander with an I2C interface microcontroller can interface with 16 fully configurable digital input/output pins. It can produce PWM signals, so you can dim LEDs. It can be set to blink or even breathe pins at varying rates. With a built-in keypad engine, it can interface with up to 64 buttons set up in an 8x8 matrix. BOB-13601

A stepper motor controller that can operate with a voltage range of 24 to 110 VDC or 18 to 80 VAC and a maximum current of up to 8.4 A. It allows micro step configuration in the range of 2 to 256. 2DM860H

Class D digital audio amplifier with Bluetooth module. It has two channels with a power of 50 W and can work with speakers from 4 to 8 Ω. It is powered with the voltage in the range from 9 to 24 V. NS-01G

<p>ESC brushless motor speed controller designed for FPV drones and RC models. Equipped with a 32-bit STM32G071 processor and PWM support up to 128 kHz, it ensures smooth and responsive motor operation. It supports DShot, PWM, Oneshot, and Multishot protocols, offering broad compatibility with flight controllers, as well as a continuous current of 70 A and a maximum current of 110 A. It has a built-in adjustable BEC (5-12 V) SEQURE SQESC 2670 ESCape32 + BEC.</p>

LIN transceiver module based on the NCV7329 IC for connecting a microcontroller to a single-wire LIN bus in a MASTER configuration. It supports data rates from 1 to 20kbps, up to 16 devices on a single network, and Normal, Standby, and Sleep operating modes. TXD, RXD, and EN pins provide data transmission and operating mode control. Soldered 333026

Module with 4 digital inputs, 4 outputs and 6 analog (current) inputs. It communicates via the RS485 interface and supports the Modbus RTU protocol. The board is enclosed in an industrial housing. Wellpro WP9038ADAM

Module with 8 analog inputs for current measurement in the range of 0 to 20 mA or 4 to 20 mA. It communicates via the RS485 interface and supports the Modbus RTU protocol. The board is enclosed in an industrial housing. Wellpro WP3082ADAM

A 24-channel input/output port expander module controlled by an I2C interface. It was based on the CH423 chip and equipped with a Gravity connector. DFRobot DFR0979

The compact (0.4″ × 0.5″) D24V5F6 synchronous buck voltage regulator takes an input voltage of up to 36 V and efficiently reduces it to 6 V while allowing for a maximum output current of 500 mA. Pololu 2844