Garage car parking system based on Arduino microcontroller

U današnje doba zbog sve većeg broja automobila i manjih mjesta za parkiranje, posebno u gradovima, razvila se potreba za parking senzorima kako bi se olakšalo parkiranje u tim uskim i malim prostorima. U ovom radu realiziran je sklop koji mjeri udaljenost i upozorava vozača na blizinu zida. Realizirani sustav sadrži predajnik i prijamnik. Predajnik se sastoji od Arduino Uno mikrokontrolera, senzora udaljenosti HC-SR04, WS2812B RGB LED trake, radio modula nrf24L01+. Dok se primatelj sastoji od Arduino Uno mikrokontrolera i radio modula nrf24L01+. Podatci zaprimljeni na primatelju se preko MQTT brokera objavljuju na server, te uz pomoć MQTT explorer-a se ispisuju i grafički prikazuju korisniku na željenim uređajima. Realizirani sustav je testiran. Testiranjem je utvrđeno da je sklop precizan i točan, posebno na mjerenju pri umjerenim temperaturama (22 °C), dok se odstupanja događaju pri visokim temperaturama zbog povećavanja brzine zvuka. S obzirom na mala odstupanja, može se zaključiti da je sklop prikladan za uporabu u realnom okruženju.Nowadays, due to the increasing number of cars and smaller parking spaces, especially in cities, the need for parking sensors has developed to facilatate parking in these narrow and small spaces. In this paper a device is realized that measures the distance and warns the driver against the wall. The realized system compises a receiver and a transmitter. The transmitter consist of an Arduino microcontroller, distance sensor HC-SR04, WS2812B RGB LED strip and radio module nrf24L01+. While the receiver consists of an Arduino microcontroller and a radio module nrf24L01+. The data received on the recipient is published on the server via MQTT broker, and with the help of MQTT explorer is written and graphically displayed to the user on the desired devices. Realized system is tested. Testing has shown that the device is precise and accurate, especially when measured at moderate temperatures (22 °C). Deviations occur at high temperatures due to an increase in the speed of sound. Given the small deviations, it can be concluded that the device is suitable for use in a real environment