Diff: main.cpp

Revision:

0:13b6d85b6dbd

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp	Tue Aug 02 17:57:16 2011 +0000
@@ -0,0 +1,35 @@
+//HIH-5031
+//0% = 0.6V
+//80% = 2.0V
+//H% = (80-0)/(2-0.6)*(Vout-0.6V)
+
+//MCP9700
+//0C = 0.5V
+//100C = 1.5V
+//T = 100*(Vout-0.5V)
+
+#include "mbed.h"
+
+DigitalOut myled(LED1);
+AnalogIn ad19(p19);
+AnalogIn ad20(p20);
+
+int main() {
+    float   ADdata19,ADdata20,temp,humid;
+    
+    while(1) {
+        ADdata19 = ad19.read()*3.3;
+        ADdata20 = (ad20.read()*3.3);
+        
+        //temp = ((ADdata20*1000.0)-500.0)/10.0;//temp
+        temp = 100*(ADdata20-0.5);//temp
+        //humid = 43.24*(ADdata19-0.4);
+        humid = (80.0/1.4)*(ADdata19-0.6);
+        
+        printf("p19 = %f V, p20 = %f V , H = %f , T = %f C \n", ADdata19,  ADdata20, humid, temp);
+        myled = 1;
+        wait(0.2);
+        myled = 0;
+        wait(0.2);
+    }
+}