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19 lines
463 B
C
19 lines
463 B
C
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#ifndef MQ4_H_
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#define MQ4_H_
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#include "BaseMQ.h"
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class MQ4 : public BaseMQ {
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public:
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MQ4(uint8_t pin);
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MQ4(uint8_t pin, uint8_t pinHeater);
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unsigned long readMethane();
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private:
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int readPpm(float a, float b);
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// Резистор установленный на плату (кОм)
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virtual int getRL() const { return 20; }
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// коефициент чистого воздуха
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virtual float getRoInCleanAir() const { return 4.4; }
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};
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#endif // MQ4_H_
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