Finger Vein Scanner Module (B) is a thin, energy-efficient biometric module with finger vein detection based on a Cortex-M4F microcontroller, designed for precise user identification in security applications. NIR technology enables effective recognition regardless of the skin surface condition, making the module a reliable alternative to traditional fingerprint readers. Thanks to its compact dimensions and a rich set of accessories, it facilitates integration with smart locks, door handles, access control systems, and compact IoT terminals.

USB-TTL converter with CP2102N chip, which enables stable serial communication between computer and TTL devices, supporting baud rates up to 3 Mbps. The module operates at 3.3 V by default, tolerant of 5 V on inputs, and its compact size and standard 2.54 mm pitch make it easy to integrate into projects. Pololu 1317

A compact Hall-effect current sensor that provides accurate DC and AC current measurement within a ±10 A range with galvanic isolation. It features a high-sensitivity analog VOUT output with a 150 kHz bandwidth, enabling fast and precise readings in dynamic systems. The module operates over a wide temperature range of -40°C to 125°C, and the low current path resistance minimizes energy loss. Its small size and flexible mounting options make it ideal for prototyping, industrial systems, and space-constrained projects. Pololu 5454

A compact Hall-effect current sensor that provides accurate DC and AC current measurement within a ±30 A range with galvanic isolation. It features a high-sensitivity analog VOUT output with a 150 kHz bandwidth, enabling fast and precise readings in dynamic systems. The module operates over a wide temperature range of -40°C to 125°C, and the low current path resistance minimizes energy loss. Its small size and flexible mounting options make it ideal for prototyping, industrial systems, and space-constrained projects. Pololu 5455

Module with two white diodes. Dedicated to Voron 3D printers as hotend and printing nozzle lighting

The ESP-12F, ESP-07S and ESP-12S module programming stand is a versatile tool, ideal for testing and programming these modules. It offers full control over IO ports, allows software downloads, and includes useful indicators for combustion mode and serial communication.

The Modeling PWM Signal Mixer Module is a compact device that allows mixing of PWM signals in modeling, allowing for a variety of control of components such as guns, plates and motors. It can be precisely tailored to the user\'s needs and also offers flexibility in control priority settings.

Module with 4-digit 7-segment LED display. The board is equipped with a TM1637 driver and communicates via a digital interface

Cable USB Akyga AK-USB-35 USB type C (m) / Lightning (m) 1.0m. Akyga AK-USB-35

LVDS to HDMI converter module with dual LVDS connectors

A passive on/off power switch that provides control and feedback functions, allowing you to start and safely shut down your system with short presses of the button, while a long press forces the power off. The Mk2 version, based on the 74LVC1G175 D-type flip-flop digital design, eliminates the problems of component tolerance and temperature variation, and also offers additional improvements such as a 2A self-resetting fuse, LED indicators, and the ability to connect a larger external button. SparkFun SPX-25365

Module with a precise clock RTC DS3231 dedicated to the Raspberry Pi Pico. Communication via the I2C interface. SB Components 21420

The module with the MCP96L01 amplifier designed to work with a thermocouple type K, J, T, N, S, E, B, or R. It has a screw connection for connecting a thermocouple and communicates via I2C. Adafruit 5165

The DisplayPort to HDMI video adapter supports 4K resolution at 60Hz, delivering clear visuals and smooth viewing experiences. Its elegant aluminum housing and minimalist design combine modern aesthetics with durability, making it suitable for both office environments and home entertainment setups. AD-DP-HD-01

Hub USB 2.0 Akyga AK-AD-13 4 porty black 15cm. Akyga AK-AD-13

Dual motor controller allowing two DC motors to be driven with voltages from 4.5 to 13.5V and a continuous current of 1.2 A per channel. SparkFun ROB-14451

Industrial router for IoT and M2M applications, equipped with dual SIM slots with automatic switching between operators. The device supports WiFi, 4G/LTE, 3G and 2G networks, as well as VPN protocols such as IPsec, OpenVPN and GRE, ensuring security and continuity of work. IP30 metal housing, five Ethernet ports (including two WAN), watchdog functions and EMC protection ensure stability and versatility in harsh industrial environments. PUSR USR-G805s

The DisplayPort to HDMI video adapter supports 4K resolution at 60Hz, delivering crystal-clear visuals and smooth viewing experiences. With its sleek aluminum housing and minimalist design, it is durable and perfectly suited for both work environments and home entertainment setups. AD-HD-DP-02

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

Module with 512 kbit (64kB) EEPROM. Communication is via the I2C interface. The module has 3 jumpers to select one of 8 addresses. SparkFun COM-18355