Diff: main.cpp

Revision:

0:5e787e0e8ab6

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp	Tue Feb 24 12:41:17 2015 +0000
@@ -0,0 +1,69 @@
+#include "mbed.h"
+#include "freetronicsLCDShield.h"
+#include "DHT.h"
+
+freetronicsLCDShield lcd(D8, D9, D4, D5, D6, D7, D3, A0);
+DHT sensor(A5, DHT11);
+DigitalOut myled(LED1);
+Ticker flipper;
+bool up=true;
+void readBP()
+{
+    float bp=lcd.readButton();
+    if (bp<0.25)
+        up=true;
+    else if (bp<0.5)
+        up=false;
+}
+int main()
+{
+    flipper.attach(&readBP, 0.1);
+    int error = 0;
+    float h = 0.0f, c = 0.0f, f = 0.0f, k = 0.0f, dp = 0.0f, dpf = 0.0f;
+    // turn on the back light (it's off by default)
+    lcd.setBackLight(true);
+    lcd.cls();
+    // print the first line and wait 3 sec
+    lcd.printf("mbed DHT11");
+    wait(3);
+
+    // print the counter prefix; the number will be printed in the while loop
+
+
+
+
+    while (1) {
+
+        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);
+            if(up==true) {
+                lcd.setCursorPosition(0, 0);
+                lcd.printf("Temperature %4.2f   ",c);
+                lcd.setCursorPosition(1, 0);
+                lcd.printf("Humidity %4.2f   ", h);
+            }
+            if(up==false) {
+
+                lcd.setCursorPosition(0, 0);
+                lcd.printf("Humidity %4.2f   ", h);
+                lcd.setCursorPosition(1, 0);
+                lcd.printf("Dew point %4.2f  ",dp);
+            }
+        } else {
+
+            lcd.setCursorPosition(0, 0);
+            lcd.printf("mbed DHT11     ");
+            lcd.setCursorPosition(1, 0);
+            lcd.printf("Error: %d      ", error);
+        }
+
+
+        wait(0.5f);
+    }
+}