USB splitter allowing to connect up to 4 USB devices. It has a cable with a length of 80cm, a power indicator and the possibility of powering from an external source with a microUSB connector

A small USB 2.0 hub that allows you to disable individual devices connected to its USB ports, as well as a visual evaluation of the number of devices enabled. It has a built-in connector for the external power supply, so it can act as an active hub. Cable with a length of 40cm, 4 USB ports

A set of basic electronic components (such as resistors, diodes or capacitors) complete with a contact plate and connecting cables. It is ideal for beginner electronics who also know Arduino

The Microchip system in the DIP8 housing, a dual driver, allows the MOSFET transistors to be controlled with a high switching speed. The controller is characterized by low power consumption, high current efficiency when loading eg gate capacity, or ESD resistance up to 4kV

Photovoltaic panel allows conversion of solar radiation into electrical energy. It has 1W power and 6V output voltage, and its design has dimensions of 125 x 63mm. The panel is flooded with resin, which protects it against dirt and mechanical damage. Solar Panel 1W

The ring has sixteen RGB WS2812 diodes, controlled by means of serial signals. The module can be supplied with voltage from 4-7V, only one signal line is required to control it. NeoPixel Ring 16 x WS2812

Red laser diode module with 5mW power, displaying intersecting lines. Ideally suited to the construction of the laser level, and thanks to the built-in driver, it is possible to power 3 - 5V. LD-G650A03 - Cross

Red laser diode module with 5mW power, displaying the point. Ideally suited as a laser pointer, and thanks to the built-in controller, it is possible to power 3 ... 5V. LD-G650A03 - Point

Red laser diode module with 5mW power, displaying the line. Ideally suited to the determination of straight lines, and thanks to the built-in driver, it is possible to supply voltage of 3 ... 5V. LD-G650A03 - Line

0.96inch OLED, SPI/I2C interfaces, straight/vertical pinheader

7 inch Capacitive Touch Screen LCD, HDMI interface, supports various systems. For Raspberry Pi (B, A+, B+, 2), Banana Pi, Banana Pro, BeagleBone Black

INEMO system: 3D accelerometer and 3D gyroscope in LGA16L housing, made by STMicroelectronics. Allows measurement of acceleration up to 16g and angular velocity up to 2000 degrees / second, communication takes place on the I2C / SPI bus

The shield provides the standard MIDI port circuits, incl. 5-pin DIN connectors, pto-isolated MIDI input, LEDs on D6 and D7, pushbuttons on D2, D3 and D4, and rotary potentiometers on A0 and A1. DEV-12898

Module with Hall sensor, allows for magnetic field detection, can be used to measure angle of rotation, displacement, mechanical vibrations, etc. The module has a connector in accordance with the Gravity standard. DFRobot SEN0185

A set of 50 MF wires in various colors, 20 cm long, with insulated terminals

This small synchronous switching step-down (or buck) regulator takes an input voltage of up to 36 V and efficiently reduces it to 7.5 V. The board measures only 0.7″ × 0.7″ yet delivers a typical continuous output current of up to 2.4 A and features reverse voltage protection.

The very small step-down 6 V, 2.5 A synchronous inverter can be supplied with voltage up to 36 V, dimensions: 17.8 mm x 17.8 mm. Pololu 2859