A compact converter designed to drive LEDs in series and parallel circuits. The device generates voltages up to 40V and currents up to 400mA from a 3-5V supply, with the output current adjustable via mini DIP switches. The board features a built-in 1.2A switch, overvoltage protection, and PWM LED dimming. Adafruit 6354

This step-down converter module allows you to reduce the voltage from 3.5-60V to a stable 3.3V at a current of up to 12A. Its high efficiency of up to 95% and low power losses make it ideal for applications requiring high current and stable power. The device features built-in overcurrent, thermal, and reverse connection protection, as well as a soft-start function and a Power Good indication. Pololu 5670

Module with a barcode and QR code scanner. It allows you to read one-dimensional and two-dimensional codes using an intelligent image recognition algorithm. It has a built-in UART interface. Waveshare Barcode Scanner Module (D)

RS422 to TTL converter module based on MAX490 for long-distance bidirectional serial communication, up to 1000 meters, with a transmission speed of up to 2.5 Mbps. Equipped with ESD protection up to 15 kV, TVS diodes and 120 Ω terminating resistors, it provides stability and immunity to interference in demanding industrial conditions. Powered by 5 V, it works with TTL logic and is compatible with popular platforms, and LED indicators facilitate diagnostics and integration.

The ICS43434 digital MEMS microphone module with an I2S interface that eliminates the need for A/D conversion and provides clean audio output in the range of 50 Hz to 15 kHz. With channel selection and low current consumption, it is suitable for stereo systems, voice recognition and portable applications. Compatible with popular microcontrollers, it provides high quality sound with low noise. Adafruit 6049

This regulated DC-DC buck switching power supply supports an input voltage of 6 to 70V and an output voltage of 0 to 60V at a current rating of up to 15A (20A peak). It features high-precision voltage and current displays and quick-select switches for standard voltages. The module features an intelligent cooling system and numerous safety features, making it a safe and reliable solution for precision powering electronics, battery testers, LED systems, and industrial applications. XY6015L

DC motor driver based on the Texas Instruments DRV8263H-Q1. It can control one DC motor in two directions or two motors in one direction from a supply voltage of 4.5-65V and a continuous current of up to 3.5A (limited to 10A). The module offers three control modes: Phase/Enable (PH/EN), PWM (IN/IN), and independent half-bridges. Built-in current sensors and protection features protect against overload, overheating, and reverse power connection. The 3-5V logic control is decoupled from the motor supply, increasing safety and integration flexibility. Pololu 5238

The LM317 + LM337 Symmetrical Power Supply provides stable and smoothly regulated symmetrical voltage for electronic and laboratory applications. Suitable for powering audio systems, preamplifiers and test projects where stable, regulated symmetrical voltage is essential. Requires consideration of proper cooling to maintain optimal operating conditions

Module with a multi-channel WAV player. It allows you to mix 32 mono or 18 stereo tracks with the ability to connect to any MIDI controller. It has 8 mono or 4 stereo audio outputs. SparkFun WIG-18159

Data logger pre-programmed to automatically log data from Qwiic sensors. It is designed for users who need to collect a lot of data into a CSV or JSON file. Data can be saved to a microSD card or sent wirelessly to an Internet of Things (IoT) service. SparkFun DEV-22462

This controller allows independent control of three DC motors using a single I²C bus. It supports motor supply voltages ranging from 4.5 to 44 V and currents up to 0.8 A continuous per channel, making it suitable for a wide range of robotic and mobile applications. I²C communication eliminates the need to generate PWM signals and significantly saves microcontroller pins. The ability to connect multiple controllers on a single bus allows for easy scaling of the system to larger motor counts. Pololu 5084

The 5V relay module with opto-isolation allows you to safely control loads up to 10A at voltages up to 250V AC or 30V DC, working with microcontroller platforms such as Arduino or Raspberry Pi

Development board based on the XMOS XU316 audio processor and the XIAO ESP32S3 module, featuring a dual digital microphone array for voice capture and processing. Enables integration with ESPHome and the Home Assistant platform and can be used to build custom voice assistant systems. Seeed Studio 110061601

The 2x15W amplifier module with Bluetooth XY-P15W is a compact audio device with a wide voltage range and modern Bluetooth 5.0, enabling wireless sound transmission at a distance of up to 15 meters. Thanks to built-in protection mechanisms, it ensures not only sound quality but also safe use in audio projects.

An advanced speed controller designed to power three-phase brushless motors in a variety of applications such as electric scooters, electric skateboards and electric bicycles. It supports an input voltage range of 8 V to 60 V, which corresponds to 3S to 13S for LiPo batteries, and a maximum current of up to 50 A. Makerbase VESC MINI 6.7 Pro

USB-TO-TTL-FT232 is a reliable USB-to-UART converter designed for applications requiring a compact module with safe and fast serial communication. It is well-suited for microcontroller programming, UART port diagnostics, and powering devices in embedded systems. With high system compatibility and full logic-level isolation, it is an ideal tool for electronics designers and system integrators.

The 10.1-inch industrial HMI module, based on the Raspberry Pi 5 with a Broadcom BCM2712 processor (Cortex-A76, 2.4GHz), offers 4GB RAM and a 32GB SD card, providing performance for IoT applications. The device supports 2.4/5GHz Wi-Fi, Bluetooth 5.0, 4Kp60 video output on two screens via HDMI, and is designed to work in temperatures from -20℃ to 60℃, thanks to its robust housing and fanless design. Edatec ED-HMI3010-101C-0432

The Broadcom BCM2711 (Cortex-A72, 1.5GHz) HMI module offers 2GB RAM, 8GB eMMC memory, expandable via Micro-SD card and NVMe SSD, Wi-Fi (2.4/5GHz) and Bluetooth connectivity, and supports 4G LTE communication. Equipped with a 10.1-inch touch screen (1280x800), Gigabit Ethernet, RS232, RS485 ports, and support for PoE power supply, it is ideal for demanding industrial environments and IoT applications. Edatec ED-HMI2120-101C-12084EU

Four-channel relay module equipped with optoisolated control inputs and JQC-3F relays with 5V coils. Designed for controlling loads up to 10A at 250VAC from a microcontroller or development platform