NE555 pulse generator module with adjustable frequency

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

Female terminal block, 3-pin. Pitch 5.0mm. Height 15mm. 2EDGK-5.0-3P. Set of 5 pieces

Laser sensor of air pollution with particles PM1,0, PM2.5 and PM10. It allows for precise analysis of the amount of pollutants in the environment, has small dimensions and a built-in silent transfer fan. Data is output to the UART interface. Planter PMSA003-C

Conductive ITO coated glass. It has dimensions of 40x50 mm, a thickness of 1.1 mm and a resistance of 10 Ω/inch2

AMOLED 5.5" display with touch panel. Equipped with HDMI for video display and USB for touch screen. Offers a resolution of 1920x1080 pixels. Case included. Waveshare 5.5inch HDMI AMOLED (with case A)

USB-C to 3.5 mm Jack Adapter with DAC Converter is a practical solution for smartphone users without a traditional audio output. It provides high sound quality, full microphone functionality, and seamless Plug & Play operation. Ideal for everyday music listening, watching movies, or making voice calls.

Module with a digital distance sensor with a range of up to 50 cm. It has a digital output that goes low when an object is detected. Pololu 4067

A module with 8 PC817 optocouplers. Allows you to add galvanic separation in the form of opto-isolation between electrical circuits

STM32F417IGH6, ARM Cortex-M4 core with DSP and FPU, 1 Mbyte Flash, 168 MHz CPU, 1MB Flash, BGA-176

The Akyga AK-AV-13 cable with HDMI and DVI-D 24+1 connectors enables the transmission of video and audio signals between devices, such as a computer and a monitor. Made of high-quality materials, it is 3 m long. Akyga AK-AV-13

A set with a radio transmitter and receiver operating at 315 MHz. The modules are equipped with Grove connectors and communicate via a digital interface. Seeed Studio 113020001

5 m long LED strip with 100 purple LEDs. It is powered with the voltage of 12 V through the DC connector 5.5 x 2.1 mm. DFRobot FIT0385-P

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

Shielded FTP category 5E Ethernet network cable with RJ45 plugs. Lanberg PCF5-10CC-0150-S

AS7331 UV light sensor module. It allows you to measure UV radiation on three channels: UVA (320-400nm), UVB (280-320nm) and UVC (200-280nm). Communication with AS7331 takes place via the I2C interface and the Qwiic connector. SparkFun SEN-23517