Diff: TMP36.h

Revision:

0:ab3d7d0c34ce

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/TMP36.h	Tue Feb 12 06:23:02 2013 +0000
@@ -0,0 +1,32 @@
+#include "mbed.h"
+ 
+//Setup a new class for TMP36 sensor
+class TMP36
+{
+public:
+    TMP36(PinName pin);
+    TMP36();
+    operator float ();
+    float read();
+private:
+//class sets up the AnalogIn pin
+    AnalogIn _pin;
+};
+ 
+TMP36::TMP36(PinName pin) : _pin(pin)
+{
+// _pin(pin) means pass pin to the AnalogIn constructor
+}
+ 
+float TMP36::read()
+{
+//convert sensor reading to temperature in degrees C
+    return ((_pin.read()*3.3)-0.500)*100.0;
+}
+//overload of float conversion (avoids needing to type .read() in equations)
+TMP36::operator float ()
+{
+//convert sensor reading to temperature in degrees C
+    return ((_pin.read()*3.3)-0.500)*100.0;
+}
+           
\ No newline at end of file