Light level and gas monitoring system
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This document introduces a light level and gas monitoring system that consists of sensors to measure light, methane, butane, propane, LPG and smoke levels in a room. The system alerts users via SMS and buzzer if light levels are low or gas is detected. It uses a photo-resistor to measure light, an MQ-2 gas sensor, an LCD display, and a SIM800l GSM module connected to an Arduino Uno microcontroller. The system is less bulky than former systems and can provide real-time data on measured quantities via the microcontroller. It has advantages over analog and some digital systems in providing unambiguous data and a more functional design.
Light level and gas monitoring system
- 1. Light Level and Gas Monitoring System By: Ahiante Stephen Oriasotie
- 2. Overview • To Introduce a system that measures the light level and the gas ( methane, butane, propane, LPG and smoke) present in a room and alerts users of the space when the Light Level is low or flammable gas is detected by means of SMS and buzzer noise. • To state the advantages of the system over existing methods of measurement.
- 3. The system • The proposed system consists of a Photo-resistor, MQ-2 gas sensor, 16 x 2 Liquid Crystal Display (LCD), and SIM800l module all interfaced to an Atmega328 microcontroller (Arduino Uno R3). • The Photo-resistor is connected in a voltage divider network to measure the Light level in Lumens (Lux ). • The LCD displays the Light Level. • The SIM800l module is a quad-band GSM/GPRS module, that works on frequencies: GSM850MHz, EGSM900MHz, DCS1800MHz and PCS1900MHz.
- 4. The system (Cont'd) • A micro-controller is a computer on a single integrated circuit that optimized to control electronic devices. It has the RAM, ROM, timers, and input/output pins all on the same chip. • The Atmega328 microcontroller is a 28 pin Integrated Circuit; having 14 digital input/output pins (of which 6 is capable of pulse width modulation output), 6 analog input pins, two clock pins, a reset pin, and 5 power pins. The Atmega328 is programmed using the Arduino uno
- 5. The system (Cont'd) The Photo-Resistor The MQ-2 Gas Sensor
- 6. The system (Cont'd) The SIM 800l module The LCD Display
- 7. The system (Cont'd) The Atmega328 microcontroller The Arduino Uno
- 9. The Simulation Circuit Diagram (Fritzing)
- 10. The Schematic Circuit Diagram
- 11. Advantages over Former Measuring Systems • It less Bulky and Cumbersome to Carry. Gas Detectors Light Intensity Detector
- 12. Advantages over Former Measuring Systems • Former Systems provide ambiguous analog data.
- 13. Advantages over Former Measuring Systems • The system's functionality can be increased to provide real- time data of the physical quantity being measured.
- 14. Conclusion • A Microcontroller (Atmega328) based Light Level and Gas Monitoring System is not only feasible but also advantageous over former analog and some digital systems previously developed. • The success of the development of a system as such is very much attributed to the cutting edge research in semi-conductor physics and computing technologies.
- 15. THANK YOU