I2C multiplexer module with TCA9548A system. Allows you to connect up to 8 devices. The system works like a gateway - it transmits I2C interface data to one of the 8 main busses. This allows you to connect up to 8 devices with the same address. DFRobot DFR0576

Module with 5 QTR type optocoupler with analog 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 4205

Module with a 3-axis BMA220 digital accelerometer with a configurable measuring range of ± 2/4/8/16 g. It is supplied with the voltage from 2 to 3.6 V and communicates via the I2C or SPI interface. DFRobot SEN0168

A graphic display module offering black characters on a white background with LED backlighting, ideal for applications requiring a clear and readable image. The UC1601 controller and SPI interface guarantee easy integration and stable operation. AV-Display LCD-CG-C128064AY-FHW K/W-E6

A graphic display module offering black characters on a white background with LED backlighting, ideal for applications requiring a clear and readable image. The T6963C controller and SPI interface guarantee easy integration and stable operation. AV-Display LCD-CG-240128D-FHW K/W-E6

7-segment LED display with a diameter of 14.20 mm and an ultra-red color. The common cathode ensures easy integration with control systems. LED1-AS-05613AMR-B

Module with 3 QTR type optocoupler with analog output. The module operates from 2.9 V to 5.5 V, detects objects at a distance of up to 30 mm. The sensor will be used in projects that require detection of changes in the ground, e.g. in linefollower robots. Pololu 4243

The 2x15W amplifier module with Bluetooth XY-P15W is a compact audio device with a wide voltage range and modern Bluetooth 5.0, enabling wireless sound transmission at a distance of up to 15 meters. Thanks to built-in protection mechanisms, it ensures not only sound quality but also safe use in audio projects.

The 7A 1-2S BLheli_S XSD7A Miniature Brushless Motor ESC Controller is a compact, high-performance device ideal for controlling brushless motors in small projects. Thanks to its low weight and solid power, it is suitable for drones, RC models and other applications requiring precise motor control.

Ultrasonic distance sensor with a measuring range from 2 to 400 cm. It communicates via a standard interface (Echo, Trigger) or the I2C bus. SparkFun SEN-17777

Sound card in the form of an expansion module with a USB adapter designed for NVIDIA Jetson Nano development kits. Waveshare Audio Card for Jetson Nano

Module with OLED display, 1.3" diagonal and 64x128 px resolution. Communication via SPI or I2C interface. Waveshare Pico-OLED-1.3

A BLDC motor control board with a Field-Oriented Control algorithm, based on the ESP32 WROOM 32D module. It supports 12-24V DC, two channels with a peak current of 12A, and dual-channel real-time current sensing with a range of ±33A. Support for Hall, SPI, I²C, ABI, and analog sensors provides flexible integration in projects such as robotics, balancing vehicles, and gimbals. Makerbase MKS ESP32 FOC V1.0

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

Tri-color E-Ink display (ePapier) with a diagonal of 1.54 "and resolution 152x152 pixels with SPI controller, SRAM memory and a MicroSD card slot. Adafruit 3625

Alphanumeric display 16 characters in two rows, content green, black background.

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 an IR transmitter operating at a frequency of 38kHz. The module is supplied with the voltage from 3 to 5V. FRobot DFR0095

DFRobot Gravity analog light intensity module for Arduino and Raspberry Pi. DFRobot DFR0026

PIR motion sensor module for Arduino and Raspberry Pi. DFRobot SEN0018