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ESP-01 based LPG Gas Detection System with RS485 (Master & Slave)
### Components:
#### **Master Circuit:**
- **ESP-01 (ESP8266)** for wireless communication
- **MAX485 Module** for RS485 communication
- **Two 5V Relays**:
- **Relay 1:** Controls Solenoid Valve
- **Relay 2:** Controls Buzzer (with Mute Option)
- **16x2 I2C LCD Display** for status updates
- **24V to 5V Buck Converter** for power regulation
- **Buzzer & LED Indicators** for alerts