INTERFACE ARDUINO WITH MQ3 TO SENSE SPECIFIC GASES.pptx
- 1. INTERFACE ARDUINO WITH MQ3 TO SENSE SPECIFIC GASES
- 2. • COMPONENT USED • ARDUINO • MQ2 SENSOR (GAS SENSOR) • JUMPER WIRES • CONNECTING CABLE
- 3. • ARDUINO Arduino is an open-source hardware and software company, project, and user community that designs and manufactures single-board microcontrollers and microcontroller kits for building digital devices.
- 4. • MQ2 The MQ2 sensor is one of the most widely used in the MQ sensor series. It is a MOS (metal oxide semiconductor) sensor. Metal oxide sensors are also known as chemiresistors because sensing is based on the change in resistance of the sensing material when exposed to gasses. The MQ2 gas sensor operates on 5V DC and consumes approximately 800mw. It can detect LPG, smoke, alcohol, propane, hydrogen, methane and carbo n monoxide concentrations ranging from 200 to 10000 ppm.
- 6. • STANDARD GRAPH OF MQ2 GAS SENSOR
- 8. • OUTPUT
- 9. • GRAPH OF PRESENSE OF ALCOHOL
- 10. • ADVANTAGES We can sense various gages as our requirement. We use this in home security also. We can use this in various security projects.
- 11. • DISADVANTAGES Disadvantages or limitations of these sensing materials include poor selectivity and cross- selectivity. • Low sensitivity to lower gas concentrations in other words detection limit. • High power consumption, baseline resistance drift, and high operating temperature.