Gas Sensor:
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program available in this link http://www.engineeringfactory.in/8051...
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Buy this Tools:
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1.8051 Development Board& 8051Programmer kit: https://amzn.to/2Q8df0G
2.servo motor https://amzn.to/2PI6q5h
3.DC Motor: http://amzn.to/2DWvunB
4.LCD 2*16: https://amzn.to/2wOPQcI
5.Seven Segment Led Display Common Cathode: https://amzn.to/2NNzUhy
6.Gas sensor(MQ-2) : https://amzn.to/2UTLrz5
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What is gas sensor?
How to interface Gas Sensor with 8051?
How to write program for gas sensor?
Full explanation of circuit connection in this video.