Module with 1 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 30 mm. The sensor will be used in projects that require detection of changes in the ground, e.g. in linefollower robots. Pololu 4141

Step-Up converter U3V70F15 with an output voltage of 15 V, an input voltage from 2.9 to 15 V and a maximum output current of 10 A. Pololu 2896

Set 3: 1x Pocket Inverter + 1x cable splitter (1 to 5) + 5x yellow 1-meter El-wires

Set with white wires EL Wire. The set includes an inverter, a 1 to 5 branching and 5 EL Wire in white, 1m long.

7-segment LED display, 1 digit 13.20mm, red (635nm), 24 mcd/se (10mA), common cathode, Pb-free. LED1-AS-05219AMR-B PBF

The brakeless bidirectional speed controller (ESC) is an advanced brushed motor control device that offers up to 40 A continuous current and up to 340 A peak current, ensuring stable operation and dynamic load response. PPM signal control allows precise control of the motor speed and direction, while the radiator and XT60 connector ensure safe use and effective cooling.

1.5inch OLED display Module is an OLED display with I2C / SPI interface with 128x128 resolution, powered by 3.3-5V. Waveshare 1.5inch OLED Module

High temperature measuring kit. It consists of a signal conversion module with a range of -270°C to 1372°C and a K-type thermocouple probe with a range of up to 800°C. I2C communication DFRobot DFR0558

STPS2L40AF is a low-voltage Schottky diode with low conduction losses and high efficiency, ideal for switching power supplies, DC/DC converters, and polarity protection. Its compact package and avalanche ruggedness make it well-suited for space-constrained applications.

Module with 31 QTRX type optocoupler with analog output. The module operates from 2.9 V to 5.5 V, detects objects at a distance of up to 50 mm. The sensor will be used in projects that require detection of changes in the ground, e.g. in linefollower robots. Pololu 4431

GPS module with 72-channel GNSS NEO-M8P-2 receiver. It can receive data from GPS, GLONASS and BeiDou systems. It has USB, UART, I2C and SPI interfaces. RTK and high accuracy up to 25mm. SparkFun GPS-15005

Module with 9 QTRX 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 4409

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

2.2 inch TFT round display module. Screen refresh rate up to 256 ms. DFRobot DFR0529

8-channel module with relays designed for minicomputers Raspberry Pi. It allows you to control devices powered by high voltage. Waveshare RPi Relay Board (B)

Module with an infrared sensor MLX90640 - a measuring matrix with a resolution of 32x24 pixels. It offers an accuracy of 1.5°C and a viewing angle of 110x75°. Communication with the sensor takes place via the I2C interface. SparkFun SEN-14843

Module with an infrared sensor MLX90640 - a measuring matrix with a resolution of 32x24 pixels. It offers an accuracy of 1.5°C and a viewing angle of 55x35°. Communication with the sensor takes place via the I2C interface. SparkFun SEN-14844

Simple and versatile module that converts I2S audio signals into analog signals, making it ideal for driving speakers with up to 3.2W of power.

Module with 5 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 4145

Module with 2 QTRX 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 4442