Sylvester Demmel / Mbed 2 deprecated Seeed_Grove_Temp_Humidity_Example

Example for DHT22 / AM2302 DHT11 and similar sensors. Now with value behind decimal point for DHT22 and comment on the calculation for temp and humidity of DHT22

Dependencies:   DHT mbed

Fork of Seeed_Grove_Temp_Humidity_Example by Seeed

main.cpp

Committer:
Sly_fox
Date:
2017-01-07
Revision:
3:cd7804120497
Parent:
2:17efe72364ea

File content as of revision 3:cd7804120497:


#include "mbed.h"
#include "DHT.h"

DHT sensor(D7, DHT22);

int main()
{
    int error = 0;
    float h = 0.0f, c = 0.0f, f = 0.0f, k = 0.0f, dp = 0.0f, dpf = 0.0f;

    while(1) {
       wait(2.0f);
        error = sensor.readData();
        if (0 == error) {
            c   = sensor.ReadTemperature(CELCIUS);
            f   = sensor.ReadTemperature(FARENHEIT);
            k   = sensor.ReadTemperature(KELVIN);
            h   = sensor.ReadHumidity();
            dp  = sensor.CalcdewPoint(c, h);
            dpf = sensor.CalcdewPointFast(c, h);
            printf("Temperature in Kelvin: %4.1f, Celcius: %4.1f, Farenheit %4.1f\n", k, c, f);
            printf("Humidity is %4.1f, Dewpoint: %4.1f, Dewpoint fast: %4.1f\n", h, dp, dpf);
            printf("\n");
        } else {
            printf("Error: %d\n", error);
        }
    }
}