main.cpp

00001 #include "mbed.h"
00002 #include "DHT.h"
00003 
00004 DigitalOut myled(LED_GREEN);
00005 Serial pc(USBTX, USBRX);        // default baud 9600
00006 
00007 DHT sensor(PTA11, DHT11);
00008 
00009 int main() {
00010     int err;
00011     pc.printf("\nDHT11 Test Program\n");
00012     
00013     wait(1);    // wait 1 sec for device stable
00014     while (true) {
00015         myled = 0;  // 0: on
00016         err = sensor.readData();
00017         if (err == 0) {
00018             pc.printf("Temperature is %4.2f C \r\n", sensor.ReadTemperature(CELCIUS));
00019             pc.printf("Temperature is %4.2f F \r\n", sensor.ReadTemperature(FARENHEIT));
00020             pc.printf("Humidity is %4.f % \r\n", sensor.ReadHumidity());
00021             printf("Dew point is %4.2f  \r\n",sensor.CalcdewPoint(sensor.ReadTemperature(CELCIUS), sensor.ReadHumidity()));
00022             printf("Dew point (fast) is %4.2f  \r\n\n",sensor.CalcdewPointFast(sensor.ReadTemperature(CELCIUS), sensor.ReadHumidity()));
00023         }
00024         else {
00025             printf("\r\nErr %i \n", err);    
00026         }
00027         myled = 1;
00028         wait(15);
00029     }
00030 }