Revision 5:176e1bc77ec2, committed 2016-05-28

Comitter:

mbedAustin

Date:

Sat May 28 08:41:37 2016 +0000

Parent:

4:9e198fc36ab5

Child:

6:3b1739d2a2c6

Commit message:

swapped out dht22 library

Changed in this revision

--- a/DHT.lib	Sat May 28 07:27:23 2016 +0000
+++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
@@ -1,1 +0,0 @@
-http://developer.mbed.org/teams/components/code/DHT/#df22ddf10d75

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/DHT22.lib	Sat May 28 08:41:37 2016 +0000
@@ -0,0 +1,1 @@
+https://developer.mbed.org/users/Julepalme/code/DHT22/#7fd3ff04ae95

--- a/main.cpp	Sat May 28 07:27:23 2016 +0000
+++ b/main.cpp	Sat May 28 08:41:37 2016 +0000
@@ -1,37 +1,26 @@
 #include "mbed.h"   // this tells us to load mbed related functions
-#include "DHT.h"    // library for the Temp&Humidity sensor
-
-DHT sensor(p6, DHT11); // used as an ouput for the sensor
+#include "DHT22.h"
+DHT22 dht22(p6);
 
 // this code runs when the microcontroller starts up
 int main()
 {
     int error = 0;
-    float h = 0.0f, c = 0.0f, f = 0.0f, k = 0.0f, dp = 0.0f, dpf = 0.0f;
+    float temp, hum;
 
     // spin a main loop all the time
     while(1) {
         wait(2.0f);
         
         // read data from the sensor
-        error = sensor.readData();
+        error = dht22.sample();
         
         // read successfully
-        if (0 == error) {
-            // read the temperature in CELCIUS
-            c   = sensor.ReadTemperature(CELCIUS);
-            
-            // YOUR CODE HERE: read the temperature in FARENHEIT and KELVIN
-            
-            
-            // read the humidity and do the calculation
-            h   = sensor.ReadHumidity();
-            dp  = sensor.CalcdewPoint(c, h);
-            dpf = sensor.CalcdewPointFast(c, h);
-            
-            // printf the temperature and the humidity 
-            printf("Temperature in Kelvin: %4.2f, Celcius: %4.2f, Farenheit %4.2f\n", k, c, f);
-            printf("Humidity is %4.2f, Dewpoint: %4.2f, Dewpoint fast: %4.2f\n", h, dp, dpf);
+        if (1 == error) {
+            // YOUR CODE GOES HERE, read temperature and humidity
+            temp = dht22.getTemperature()/10.0;
+            hum = dht22.getHumidity()/10.0;
+            printf("temp: %2.2f  , hum:%2.2f    \r\n",temp,hum);
             
         } else {  // read unseccessfully
             printf("Error: %d\n", error);