NE555 pulse generator module with adjustable frequency

Module with 4 QTRX type optocoupler with RC (digital) output. The module operates from 2.9 V to 5.5 V, detects objects at a distance of up to 40 mm. The sensor will be used in projects that require detection of changes in the ground, e.g. in linefollower robots. Pololu 4344

Universal tester of servos and ESC regulators. It allows you to check the operation of the servo without the need for a transmitter and receiver

The BLX-A fuse holder for 5x20 mm fuses, designed for THT mounting, ensures solid seating on printed circuit boards and protects electronic systems against overvoltages and overloads.

A pair of JST plugs (male and female) with 95mm cables, can be successfully used as a power connector

32-bit microcontroller from the STM32F7 family with ARM Cortex-M7 core, 512kB Flash memory, 320kB SRAM, I2C, SPI, UART / USART memory, USB, CAN, 1.7 ... 3.6V, 144LQFP, STM, RoHS

Module with a buzzer designed for Wemos D1 Mini tiles. It allows you to generate simple sounds by changing the frequency of the control signal

A miniature lidar proximity sensor that detects objects ranging from less than 1 mm to 50 cm by generating a PWM signal proportional to distance. It operates in a 3-5.5 V range, draws 30 mA, features an ENABLE pin for sleep mode, and holes for a 2.54 mm connector and an indicator LED. Its color, transparency, and light-sensitive properties make it ideal for robotics, automation, and contactless interfaces. Pololu 5562

Gigabit Ethernet expansion module with RTL8211E-VB-CG chip (integrated Realtek Ethernet transceiver) and 4 RJ45 ports. It complies with 10BASE-T, 100BASE-TX and 1000Base-T IEEE 802.3 standards. Numato Lab NLFMCET001

Versatile 9DOF sensor with accelerometer, magnetometer and gyroscope, supporting I²C and SPI interfaces, enabling precise measurement of motion, orientation and temperature, with easy integration with Arduino and microcontrollers. Adafruit 3387

THT resistor, 0.25W, 5%, RoHS

Access line ultra-low-power 32-bit MCU ARM®-based Cortex®-M0+, 64 KB Flash, 8 KB SRAM, 2 KB EEPROM, ADC, LQFP48, RoHS

UART-RS485 converter module. The board was equipped with a Grove connector. Seeed Studio 103020193

Lanberg Cat. 6A patch cord with Fluke Passed certification guarantees the highest quality and reliability, enabling optimal network connection compatible with various network devices in any environment. Lanberg PCF6A-10CC-0150-B

Universal test leads for Uni-T multimeters with straight and angular plugs on both sides. Uni-T UT-L09

MT7628N-A WiFi Module Seeed Studio 317060562 is an energy-efficient 2.4 GHz Wi-Fi module with OpenWRT support, intended for IoT applications and integration with smart devices. Thanks to its extensive interfaces and high performance, it is used in wireless communication systems, smart home networks, and edge devices.