The Step-Down converter module converts the input voltage of 11 - 26 V to a constant 9 V, with a maximum output current of 3 A, recommended up to 1.1 A for long-term operation. The conversion efficiency of the device is 96% and the module size is 22.3 x 17 x 4.2 mm

The module protects the load against reverse polarity to -60 V, but does not block reverse current, which is desirable in applications such as motor control. It uses the LM74500-Q1 controller and a MOSFET transistor. Thanks to its low impedance (10 mΩ), it supports currents up to 10 A continuous and 30 A transient, providing reliable protection and the possibility of easy assembly. Pololu 5380

Step-up DC-DC converter module, 0.9-5V input voltage, 5V output voltage (max. 500 mA) connected to the USB socket. There is a diode on the board indicating the power connection

Crowtail – Dual Coil Latching Relay Module 2.0 is an energy-efficient dual-channel latching relay that retains its state after power loss. Intended for use in automation systems, remote control, and battery-powered projects.

Step-Down DC-DC converter module based on the D36V6F5 chip. Input voltage 5.2..50V, output voltage 5V (max. 600mA). Pololu 3792

Module with Flash memory W25Q16 with a capacity of 16 Mbit (2 MB). It communicates via the SPI interface. Adafruit 5635

The module protects the load against reverse polarity to -60 V, but does not block reverse current, which is desirable in applications such as motor control. It uses the LM74500-Q1 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 5381

Universal tester of servos and ESC regulators. It allows you to check the operation of the servo without the need for a transmitter and receiver

Step-Up DC-DC converter module. It has an input voltage of 1.3 to 16 V, an output voltage of 12 V and a maximum input of up to 2 A. Pololu 4945

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

Crowtail-Rotary Angle Sensor 2.0 is an analog rotary-angle sensor with a 300° range, ideal for value adjustment in electronic projects. It is used in lighting control, volume regulation and user interfaces.

Two-channel driver of direct current (DC) motors with a working voltage from 7 to 30 V and a maximum continuous current of 10 A. It can be controlled by a PWM signal or by buttons. Cytron MDDRC10

A switching converter that regulates 18V from an input range of 2.6V to 20V. It offers high efficiency of 70-95% and the ability to operate with a continuous input current of up to 900mA and a peak current limit of 2.2A. With a switching frequency of 1.6MHz and a power-saving mode, it is suitable for both high-performance and low-power applications. Pololu 5587

Module with 16-channel PCF8575 IO expander controlled by the I2C interface. Equipped with a STEMMA QT connector. Adafruit 5611

The high power motor driver module works on the basis of Infineon BTS7960B systems. Maximum controller current: 43 A, operating voltage range: 5.5V - 27V. The module has a heat sink and can be controlled from the Arduino, Raspberry Pi, and STM levels. IBT_2

2x1.2A DC Motor Driver is a dual controller of DC motors powered with 2.5 ... 12V voltage with a maximum current consumption of 1.2A (3.2A peak) per channel. DFRobot DRI0044

Its a mini HDMI decoder board which you can use as an all-in-one display driver for TTL displays, or perhaps decoding HDMI/DVI video for some other project. This breakout features the TFP401 for decoding video, and for the touch version, an AR1100 USB resistive touch screen driver. Adafruit 2218

Expansion board for XIAO, enabling easy CAN Bus communication by integrating MCP2515 and SN65HVD230. Ideal for applications in vehicles, industrial control systems and robotics, it provides reliable data exchange and easy integration into the XIAO ecosystem. Seeed Studio 105100001

Module with 4-channel ADC ADS1015 converter. Equipped with a STEMMA QT connector, it communicates via the I2C interface. Adafruit 1083

The Step-Up converter module converts the voltage in the range of 3.5-30V to 4-30V with an efficiency of over 90% and a maximum power of 80W. Its compact dimensions (3.8 x 5.2 x 2cm) and wide operating temperature range (-40 - 85°C) make it ideal for many applications.