DEV-13956 datasheet(13/26 Pages) SPARKFUN

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//Find the largest windgust in the last 10 minutes

windgustmph_10m =0;

windgustdir_10m =0;

//Step through the 10 minutes

for(int i =0; i <10; i++)

{

if(windgust_10m[i] > windgustmph_10m)

{

windgustmph_10m = windgust_10m[i];

windgustdir_10m = windgustdirection_10m[i];

}

//Calc humidity

humidity = myHumidity.getRH();

//float temp_h = myHumidity.readTemperature();

//Serial.print(" TempH:");

//Serial.print(temp_h, 2);

//Calc tempf from pressure sensor

tempf = myPressure.readTempF();

//Serial.print(" TempP:");

//Serial.print(tempf, 2);

//Total rainfall for the day is calculated within the inte

rrupt

//Calculate amount of rainfall for the last 60 minutes

rainin =0;

for(int i =0; i <60; i++)

rainin += rainHour[i];

//Calc pressure

pressure = myPressure.readPressure();

//Calc dewptf

//Calc light level

light_lvl = get_light_level();

//Calc battery level

batt_lvl = get_battery_level();

}

//Returns the voltage of the light sensor based on the 3.3V ra

//This allows us to ignore what VCC might be (an Arduino plugg

ed into USB has VCC of 4.5 to 5.2V)

float get_light_level()

{

float operatingVoltage = analogRead(REFERENCE_3V3);

float lightSensor = analogRead(LIGHT);

operatingVoltage = 3.3 / operatingVoltage; //The referenc

e voltage is 3.3V

lightSensor = operatingVoltage * lightSensor;

return(lightSensor);

}

//Returns the voltage of the raw pin based on the 3.3V rail

//This allows us to ignore what VCC might be (an Arduino plugg

ed into USB has VCC of 4.5 to 5.2V)

//Battery level is connected to the RAW pin on Arduino and is

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