Module with 7 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 4347

Module with a logarithmic digital potentiometer based on the DS1841 chip. Equipped with a STEMMA QT connector, it communicates via the I2C interface. Adafruit 4570

Module with an ambient oxygen concentration sensor. The system allows you to measure the oxygen volume in the range up to 25% with a resolution of 0.15%. The module communicates via the I2C interface. DFRobot SEN0322

GPS module with NEO-M9N 92-channel GNSS receiver. The system can receive data from all major positioning systems: GPS, GLONASS, Galileo and BeiDou. It has UART, I2C and SPI interfaces. SparkFun GPS-15712

Module with a 7-color ACeP e-Paper display with a diagonal of 5.7" and a resolution of 600 × 448 px. It communicates via the SPI interface. Pimoroni PIM609

The cap with the Zener ESP Square Design dedicated to the button of the mechanical keyboard with switches compatible with Cherry MX. Made of translucent material. Adafruit 5106

4-core cable with a length of 15 cm, terminated on one end with a Grove plug, and on the other with a male goldpin connector. Seeed Studio 110990210

Set of 24 keycaps for keyboard. They have a milky-transparent layer, thanks to which they perfectly match the LED backlight. Adafruit 5148

I2C-UART converter module with two UART output interfaces. Configuration of I2C addresses allows you to connect up to 4 such modules to one controller, which means extending the board\'s capabilities by 8 UART interfaces. DFRobot DFR0627

Monochrome OLED display with a diagonal of 0.91" and a resolution of 128x32 pixels. The display has a built-in SSD1306 controller, communication via the I2C interface. DFRobot DFR0647

Module with a black and white OLED display 1.3" with a resolution of 128x64 pixels. Designed for M5Stack sets. It communicates via the I2C interface. M5Stack U119

Capacitive soil moisture sensor with pump for M5Stack sets, equipped with holes compatible with LEGO. M5Stack U101

Module with a digital temperature and humidity sensor based on the SHT31. Communication via the I2C interface. DFRobot SEN0331

Module with a black and white OLED display with a diagonal of 1.12" and a resolution of 128x128 px. The board is equipped with a Grove connector and communicates via the I2C and SPI interface. Seeed Studio 104020250

HDMI cable Akyga ver. 1.4 with a length of 5 m

Development board with ATmega4809 microcontroller and Microchip ECC608 cryptographic chip. It is equipped with 6 analog input pins, 14 digital inputs/outputs (5 as PWM output) and Grove ports. Seeed Studio 102010288

Cap for Xbee and Arduino. It has been designed for wireless sensor networks such as WiFi, Bluetooth 2.0 / 4.0 and Zigbee. DFRobot DFR0015

Decoder dedicated to receive digital terrestrial TV programs in the DVB-T2 H.265 standard. Designed for TVs with HDMI, USB, SCART and RF input. BLOW 4625FHD

Module with a pulse sensor and the level of SpO2 (oxygen saturation level). It is based on the MAX30102 chip and communicates via the I2C or UART interface (Gravity connector). DFRobot SEN0518

Module with 13 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 4113