23 lines
513 B
C++
23 lines
513 B
C++
#include "config_user.h"
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int anemometerRotations = 0;
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unsigned long currentTime = 0;
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ICACHE_RAM_ATTR void _anemometerInterrupt() {
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anemometerRotations++;
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#ifdef DEBUG
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Serial.print("*");
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#endif
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}
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float wind_speed() {
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anemometerRotations = 0;
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currentTime = millis();
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int interruptNumber = digitalPinToInterrupt(ANEMOMETER_PIN);
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attachInterrupt(interruptNumber, _anemometerInterrupt, RISING);
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delay(1000 * 5);
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detachInterrupt(interruptNumber);
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return (float)anemometerRotations / 5.0 * 2.4;
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}
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