This bachelors thesis includes the application of theoretical knowledge acquired throughout education in order to create an electronic device capable of measuring physical quantities such as air temperature, atmospheric pressure, and relative humidity, as well as quantities that can be used to determine the air quality in the surrounding area (eCO2 and TVOC). The Arduino based weather station consists of a multitude of electronic devices. Chapters 1 to 4 contain the theoretical framework of the thesis. The weather station's central device is the Arduino Uno R3 electronic board when referring to hardware, or Arduino integrated development environment (IDE) when it comes to software. The Arduino Uno board physically connects the rest of the electronic devices using jumper wires and acts as a pivotal point for data exchange between the devices. The thesis contains a detailed description of the standard Arduino serial communication protocols: UART, SPI and I2C. The BMP280 sensor as part of the GY-BMP280 module measures air temperature and atmospheric pressure with high precision and low power consumption. DHT22 also has the ability to measure air temperature, as well as relative humidity. It is characterised by an affordable price and small errors during measurement. Air quality is assessed using the CCS811 sensor installed on the CJMCU-811 module. The sensor has high sensitivity and a wide range of detection of volatile organic compounds (VOC) in the air. The values of the measured physical quantities are displayed on the LCD 16x2 screen. Almost all electronic devices inside the weather station communicate via the I2C communication protocol except the DHT22 sensor, which communicates with the Arduino via a separate data line.