Bluetooth 4.1 audio receiver with 3.5mm Jack audio output. It allows you to play files via Bluetooth, from a mass memory (flash drive), from a computer via USB or from a microSD card

A switching converter that stabilizes a 15V voltage 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 5586

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

Brushless DC motor (BLDC) driver. It can operate motors powered with a voltage from 6 to 20 V with a current consumption of up to 3 A

Waveshare DDSM Driver HAT (B) is an advanced hub motor driver for DDSM400 motors, based on the ESP32, featuring both wired (USB, UART) and wireless (WiFi, ESP-NOW) communication. It supports control of up to 6 motors using JSON commands and integrates with Raspberry Pi, making it a suitable solution for mobile robotics and multi-motor system projects.

Step-Up/Step-Down converter module based on the S13V20F5 system. It has an input voltage from 2.8 to 22 V and an output voltage of 5 V. The current efficiency of the converter is up to 2,5 A. Pololu 4085

Board with the WiFi ESP-12F (ESP8266) module and a 5 V relay. Equipped with an AC adapter

8-channel analog acquisition module with default current measurement mode (0–20 mA), designed for industrial applications requiring stable and precise data acquisition. Compatible with current sensors, it supports RS485 communication and the Modbus RTU standard, allowing easy integration with SCADA systems and PLC controllers. Galvanic isolation and noise immunity make it suitable for environments with high EMC requirements. Ideal for industrial process monitoring, environmental parameter measurement, and building automation.

8-channel solenoid driver controlled via I2C. Compatible with 3V/5V logic, features STEMMA QT / Qwiic connectors. Adafruit 6318

The Cytron iMD16 motor driver enables control of brushed DC motors operating from 7 V to 30 V DC with a continuous current of up to 16 A (30 A peak). A rugged metal enclosure, integrated manual controls, and support for PWM/DIR signals make the unit suitable for both standalone operation and integration into industrial automation systems. Cytron iMD16

Finger Vein Scanner Module (A) is an advanced biometric module for finger vein identification, offering a high level of security, low power consumption, and resistance to harsh environmental conditions. Its fully integrated design and support for standard communication protocols facilitate its use in smart locks, access control systems, and embedded devices, especially in applications requiring reliable user authentication without contact with the skin surface.

Absolute encoder module with 8421 (BCD) coding with 16 positions. Vertical mounting. DFRobot DFR0721

Driver board designed for DDSM series servo motors, featuring an ESP32 microcontroller, 2.4 GHz WiFi connectivity, RS485 and UART interfaces, and an integrated 5 V buck converter for powering a Raspberry Pi. Supports up to four DDSM115 or DDSM315 motors, or up to four DDSM210 motors, providing both wired and wireless control as well as JSON-based command support. DDSM Driver HAT (A)

USB-TO-TTL-FT232-M is a compact USB-to-UART converter with a pre-soldered connector, designed for quick and secure connection to microcontrollers and serial modules. Featuring the FT232RNL chip, ESD protection, and LED indicators, the module is ideal for development, diagnostics, and embedded applications. A perfect choice for embedded systems engineers and prototype developers.

Brushless motor driver module (ESC regulator) with current efficiency up to 20 A. Uses BLHeli_S software

The S7V8F3 step-up/step-down converter regulates the voltage at 3.3 V, supporting an input voltage range of 2.7 V to 11.8 V, making it ideal for battery-powered applications. With an efficiency of over 90% and protection against short circuits and overheating, it provides reliable and energy-efficient operation in a wide range of conditions. Pololu 2122

Efficient step-down converter that reduces the input voltage from up to 45 V to a regulated output voltage range from 1.4 to 7 V, offering high efficiency and a maximum continuous current of 3.8 A. It has built-in protection against reverse polarity, overload and short circuit, and the spread spectrum function reduces EMI interference. The module is equipped with an additional potentiometer for adjusting the cut-off voltage. Pololu 4852

Efficient step-down converter that reduces the input voltage from up to 45 V to a regulated output voltage range from 1.4 to 7 V, offering high efficiency and a maximum continuous current of 3.4 A. It has built-in protection against reverse polarity, overload and short circuit, and the spread spectrum function reduces EMI interference. The module is equipped with an additional potentiometer for adjusting the cut-off voltage. Pololu 4872

LVDS to HDMI converter module with dual LVDS connectors

LED adapters that allow easy control of LEDs (dimming, flickering, pulsing) in Tiny FX based projects. They feature AVX 9276 connectors and built-in 33Ω resistors, eliminating the need for soldering and external components. Compact and durable, they are great for models, LEGO® scenes and light decorations. Pimoroni PIM751