An Auto Air Filling System for Tyres is a smart, automated setup designed to inflate vehicle tyres to the correct pressure without manual monitoring. The system uses a pressure sensor to detect the current tyre pressure and automatically controls an air compressor to fill the tyre until it reaches the preset value. Once the target pressure is reached, the compressor stops automatically, preventing over-inflation.

This system saves time, ensures safety, and maintains proper tyre health, which improves fuel efficiency and vehicle performance. It is ideal for petrol pumps, service stations, and fleet maintenance setups.

Parts Used:

1. Air Compressor – generates pressurised air for tyre inflation
2. Pressure Sensor / Digital Pressure Gauge – measures tyre pressure in real time
3. Microcontroller (Arduino / ESP32) – processes pressure data and controls the compressor
4. Solenoid Valve – controls the airflow to the tyre
5. Relay / Motor Driver – switches compressor ON/OFF
6. Display Unit (LCD/OLED) – shows current and target pressure
7. Keypad / Buttons – for setting desired tyre pressure
8. Air Hose with Nozzle – connects to tyre valve
9. Power Supply – mains AC or battery-based operation
10. Enclosure / Stand – houses the system securely