Magnetic switch (reed switch) enclosed in a plastic housing. It has a compact structure and low weight. DFRobot SEN0481

Crowtail-PIR Motion Sensor 2.0 is a digital motion sensor for use in alarm systems, building automation and interactive projects. It provides a wide detection angle and adjustable range in a compact form with easy connection through the Crowtail interface.

4-channel converter of logic levels allowing for connection of systems operating with voltage levels of 1.8 V, 2.5 V, 3.3 V and 5 V. DFRobot DFR0843

The SUNON 92x92x25mm AC axial fan provides efficient cooling, quiet operation and high reliability thanks to its solid construction and ball bearings, making it an ideal choice for a variety of industrial and electronic applications. Sunon SF23092A2092HBT.GN

Crowtail-MOSFET 2.0 enables controlling devices powered with up to 50 V DC using a low-voltage signal from a microcontroller. It is used in projects requiring power isolation or switching, such as fans, LED strips or DC motors.

Module with PIR S16-L221D motion sensor. The board is equipped with a Grove connector and communicates via a digital interface. Seeed Studio 101020617

Pololu 4811 is a set of two JST SH 2-pin side-entry adapters that enable connecting JST SH wires to breadboards and prototype circuits. Thanks to the standard 2.54 mm pitch and the side-entry connector layout, the module facilitates integration in projects with limited mounting space.

Compact, low-power 2.4 GHz Bluetooth Beacon solution, ideal for sensor monitoring, asset tracking, and real-time location. With extremely low power consumption, it can operate for years on a 3V button cell battery, making it an efficient choice for IoT applications. Configuration of the module is simple and intuitive thanks to the InPlay NanoBeacon Config Tool, which enables easy programming without the need to write code, providing a user-friendly graphical interface to set the device parameters. SparkFun WRL-21293

TEC1-12710 is a high-performance Peltier module with compact dimensions and a cooling power of up to 89 W, designed for active cooling of electronics, optical systems, and other temperature-sensitive applications. Featuring PTFE insulation and an Al₂O₃ ceramic housing, the module offers excellent thermal and chemical resistance.

Converter with a built-in microcontroller (MCU) and a CAN transceiver system. It can work with devices with an operating voltage of 3.3 V via goldpin connectors with a pitch of 2.54 mm. The converter facilitates the design and prototyping of devices based on the CAN bus. Waveshare WS-TTL-CAN

Mini keyboard with three keys (default "Ctrl", "C" and "V") with the possibility of reprogramming the functions performed. It uses the RP2040 microcontroller from Raspberry Pi and offers RGB backlighting. Connects to your computer via a USB Type-C port. Waveshare RP2040-Keyboard-3

A compact board with eight 12-bit DACs that allow precise voltage control on each output via I2C communication. Compatible with 3.3V or 5V, it offers flexibility with a reference voltage setting and STEMMA QT or Qwiic connectors for easy integration with other I2C devices. Adafruit 6223

Lanberg brand power cord from CEE 7/7 to IEC 320 C13 for PC, laptop and server power supplies. Lanberg CA-C13C-12CC-0018-BK

Audio amplifier with three output channels. It can be powered with the voltage from 5 to 26 V and has two outputs with a power of 50 W (left and right) and one with a power of 100 W (bass). Equipped with Bluetooth 5.0 communication. XY-S100L

The SEN55 sensor module from Sensirion, which combines a sensor allowing the measurement of particulate matter, volatile organic compounds, NOx, humidity and temperature in one housing. SparkFun SEN-23715

Bluetooth audio receiver module enclosed in a housing that enables wireless transmission of sounds. It is equipped with a PCB antenna, microphone, 3.5 mm audio jack and control buttons