• arduino uno 4 Digit 7 segment gas sensor project

    sensor gas Displayed on 4 Digit 7 segment

    The MQ-4 gas sensor modules are used in gas leakage detecting equipments, they are suitable for the detection of CH4,Natural gas.LNG, avoid alcohol and cooking fumes and cigarette smoke with this sensor.
    • High sensitivity to CH4 and Natural gas
    • Slight sensitivity to alcohol, smoke
    • Fast response
    • Stable and long life
    • Simple drive circuit
    • VCC - 5V
    • GND - GND
    • A0  - Analog pin7
    • D0  - LED




    Code for 4 Digit 7 segment (common anode)


    Code for 4 Digit 7 segment (common cathode)


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