MQ4 Sensor Interfacing with PIC16F628A | Simulation | Natural gas, CH4,smoke Detector
MQ4 Sensor Interfacing with PIC16F628A | Simulation | Natural gas, CH4,smoke Detector
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MQ-4 Gas Sensor Features
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1] Good sensitivity to Combustible gas in wide range
2] High sensitivity to CH4, Natural gas.
3] Small sensitivity to alcohol, smoke.
4] Fast response Stable and long life
5] Simple drive circuit
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MQ-4 Gas Sensor Specifications
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1] Sensor Type Semiconductor
2] Power requirements: VCC - 5V±0.1
3] DO output: TTL digital 0 and 1 (0.1 and 5V)
4] AO output: 0.1-0 .3 V (relative to pollution), the maximum concentration of a voltage of about 4V
5] Detection Gas: Natural gas/Methane
6] Detection Concentration: 200-10000ppm (Natural gas / Methane)
7] Interface: 1 TTL compatible input (HSW), 1 TTL compatible output (ALR)
8] Heater consumption: less than 750mw
9] Operating temperature: 14 to 122 °F (-10 to 50°C)
10] RH Related humidity less than 95%Rh
11] 2 Oxygen concentration is 21% (standard condition) - Oxygen concentration can affect sensitivity
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