Module with 11 QTR 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 4111

Male terminal block, angled, 4-pin. Pitch 3.5mm. Height 9.2mm. KF2EDGR. Set of 10 pieces

Module with 2-channel driver for DC motors L298P. The board is equipped with a Grove connector and communicates via the I2C interface. Seeed Studio 105020093

The expansion module is designed to work with the micro:bit educational board. It can control 3 servos and 2 DC motors. Waveshare Motor Driver for micro:bit

Module with digital barometer BMP388. The system measures pressure in the range from 300 to 1250 hPa and temperature from -40 ℃ to 80 ℃. DFRobot SEN0251

A set of RFID tags consisting of three key rings in different colors and two white cards. The tags operate at 125 kHz and comply with the EM4100 standard. Seeed Studio 110990035

A speed controller based on the open VESC standard, designed for skateboards, scooters, and e-bikes. It supports voltages from 14 to 84 V (4S–20S) and continuous currents up to 100 A, offering various BLDC motor control modes and a wide range of interfaces (PPM, UART, I2C, USB-C, CAN). Its compact design, aluminum PCB, and extensive safety features ensure reliability, flexible configuration, and convenient integration with computers and smartphones. Makerbase VESC 75100 V2

DC-DC Step-up converter module based on the U3V70F9 system. Input voltage 2.9-9V, output voltage 9V, maximum current 10A. Two mounting holes. Polol 2894

IPS 3.4" round LCD display with touch panel. It has a DSI interface for the image display and an I2C interface for the touchscreen. It has a resolution of 800x800 pixels. Waveshare 3.4inch DSI LCD (C)

Step-Up converter U3V70F6 with an output voltage of 6 V, an input voltage from 2.9 to 6 V and a maximum output current of 10 A. Pololu 2892

Professional pH measurement set with an industrial silver chloride electrode (Ag/AgCl), the measurement in the range from 0 to 14 pH is converted into voltage with a linear characteristic. DFRobot SEN0169-V2

A module with a 1.69" colour IPS LCD display with a resolution of 240x280 pixels. It has rounded corners and uses the ST7789V2 controller (SPI interface). Waveshare 1.69inch LCD Module

Fingerprint reader module with capacitive sensor. It uses an efficient processor and the IDfinger6.0 algorithm. It ensures quick identification and stability of operation, communicates via the UART interface. DFRobot SEN0348

1x6 character, 30x58mm, LED backlight, STN, negative blue, enhanced temperature range, "fast" 1-LED 20mA cyryllic, 9.72x5.36mm character

The set consists of the STM32 NUCLEO-F401RE board with the STM32F401RE microcontroller and the X-NUCLEO-6180A1 board with the VL6180 distance sensors operating in ToF technology. STMicroelectronics P-NUCLEO-6180A1

MEMS SPU0414HR5H-SB analog microphone module. The board is equipped with a Grove connector and communicates via an analog interface. Seeed Studio 101020852

Module with LCD IPS display, 0.96" diagonal and 160x80 px resolution. Communication via SPI interface. Waveshare Pico-LCD-0.96

Omnidirectional ceramic antenna dedicated to GNSS systems. It can work with receivers operating in BeiDou, GPS and GLONASS systems. It has a cable terminated with an IPEX 1 connector. Waveshare GNSS Ceramic Antenna

A switching converter that regulates 24V voltage from an input range of 2.6V to 20V. It offers high efficiency of 70-95% and the ability to operate with a continuous input current of up to 900mA and a peak current limit of 2.2A. With a switching frequency of 1.6MHz and a power-saving mode, it is suitable for both high-performance and low-power applications. Pololu 5588