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19 lines
311 B
C++
19 lines
311 B
C++
#include "MQ8.h"
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MQ8::MQ8(uint8_t pin)
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: BaseMQ(pin) {
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}
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MQ8::MQ8(uint8_t pin, uint8_t pinHeater)
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: BaseMQ(pin, pinHeater) {
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}
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unsigned long MQ8::readHydrogen() {
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return readPpm(-1.52, 10.49);
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}
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int MQ8::readPpm(float a, float b) {
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float ratio = readRs()/_ro;
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return pow(M_E, (log(ratio)-b)/a);
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}
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