weatherstation/firmware/sensor_wind.ino

60 lines
1.1 KiB
C++

#include "config_user.h"
#include "config.h"
unsigned int anemometerRotations = 0;
uint32_t start_meas_wind_time = 0;
ICACHE_RAM_ATTR void _anemometerInterrupt()
{
anemometerRotations++;
#ifdef DEBUG
Serial.print("*");
#endif
}
/*
float wind_speed()
{
anemometerRotations = 0;
int interruptNumber = digitalPinToInterrupt(ANEMOMETER_PIN);
attachInterrupt(interruptNumber, _anemometerInterrupt, RISING);
delay(1000 * WIND_SENSOR_MEAS_TIME_S); // time to measure
detachInterrupt(interruptNumber);
// calculate the speed as km/h
float tmp_speed = (float)anemometerRotations * WINDSPEED_FACTOR;
#ifdef DEBUG
Serial.print("Windspeed: " + String(tmp_speed));
#endif
return tmp_speed;
}
*/
void start_measure_wind()
{
start_meas_wind_time = millis();
anemometerRotations = 0;
interruptNumber = digitalPinToInterrupt(ANEMOMETER_PIN);
}
boolean check_measure_wind_done()
{
if (start_meas_wind + WIND_SENSOR_MEAS_TIME_S <= millis())
{
detachInterrupt(interruptNumber);
return true;
}
return false;
}
float stop_measure_wind()
{
return (float)anemometerRotations * WINDSPEED_FACTOR;
}