In this project MQ2 LPG gas sensor is interfaced the with microcontroller. The microcontroller monitors gas concentration and displays on 16×2 LCD. If gas concentration crosses threshold value, alert signal is sent to an android phone. The android phone communicates with the system over bluetooth technology. Android phone has android app which activates alarm in it.
Software:
1. ARDUINO IDE ( Compiler )
2. EMBDDED CPP CODE
3. PROTEUS SIMULATOR
Hardware :
- ATMEGA328 Microcontroller (Arduino UNO)
- MQ2 Gas Sensor Module
- 16×2 LCD DISPLAY
- Bluetooth Module (HC-05)
- Regulated Power Supply