The 8-channel ULN2803A system enables controlling high-current loads from a low-voltage logic level. Adapted for surface mounting, it is used in automation systems, motor control, and microcontroller circuits.

An audio module with a DAC converter designed to work with the Raspberry Pi. Supports I2S/DSD/Coaxial input, Analog/Coaxial/Optical/I2S output, and has 384K/32Bit decoding function. DFRobot DFR0941

RC extension cable dedicated to servos, comes with JR/Futaba female and male connectors

A sensor that detects the concentration of hydrogen sulphide. Equipped with a factory calibrated probe. It communicates via the I2C interface, UART or analog output. DFRobot SEN0467

Sensor that detects the concentration of chlorine. Equipped with a factory calibrated probe. It communicates via the I2C interface, UART or analog output. DFRobot SEN0468

The 32-bit microcontroller from the STM32F7 family with the ARM Cortex-M7 core, has 1024 kB Flash memory and 320kB SRAM memory. Supports LCD-TFT, USB OTG HS, Ethernet, CAN, UART, I2C, SPI, ADC, DAC. System in the 144-LQFP housing. STM32F746ZGT6

STM32G0B1RCT6, 32-bit STM32G0 microcontroller, Arm Cortex-M0+ core, 64 MHz, 256 KB of Flash memory, 144 KB of RAM, LQFP64

A sensor that detects the concentration of sulfur dioxide. Equipped with a factory calibrated probe. It communicates via the I2C interface, UART or analog output. DFRobot SEN0470

Quick couplings allowing the connection of two conductors with a diameter of 0.5 mm. They are used for quick and precise connection of telephone wires or twisted-pair cables (UTP, FTP). UY 4CI-2006

Adapter from DC 5.5 x 2.1 mm male connector to terminal spring connector

The protection system for four Li-Ion cells with a voltage of 14.8 V. The module has the function of charging the cells, discharging and protecting against excessive discharge. The cells can be discharged with a continuous current of up to 18 A

BMS module for three Li-Ion cells with a voltage of 11.1 V. It has the function of charging with a balancer, discharging and over-discharge protection. The cells can be charged with a continuous current of up to 12 A

Cable (adapter) with a female DC 5.5x2.1 mm connector and alligator clips. It allows you to conveniently connect the device, e.g. to a power supply

Wireless keyboard dedicated to 7-inch tablets. It guarantees a fast and stable connection with compatible devices up to 10 meters. Charging takes place via the USB port, and the 160 mA battery provides up to 55 hours of uninterrupted operation

Integrated Circuit - Interface - I / O Expanders 8bit I / O Expnder, DIP16, Texas Instruments, Rohs

Adafruit 2315

2.4 "TFT LCD display module with SD card slot. Resolution 240x320. Based on the ILI9341 controller. Powered by 3.3V or 5V.

Brushless DC motor driver (BLDC) with speed regulation by potentiometer or PWM signal. It can operate motors powered with the voltage from 6 to 60 V with a current consumption of up to 16 A

IDC male socket, 10-pin straight, pitch 1.27 mm. Designed for mounting on printed circuit boards. RoHS

Aluminum extensometer beam, allowing measurement of weight up to 20 kilograms. It has four wires. It is used in kitchen scales and portable scales, it has a 21 cm cable, RoHS.