M. Kleider / MPL115A1

mbed MPL115A1 (Barometric Pressure Sensor) Library

Dependents:   MPL115A1_HelloWorld

Files at this revision

API Documentation at this revision

Revision 1:b2adf1b62898, committed 2012-04-17

Comitter:
mk
Date:
Tue Apr 17 15:35:24 2012 +0000
Parent:
0:f8ee2a5e377a
Commit message:

Changed in this revision

MPL115A1.cpp Show annotated file Show diff for this revision Revisions of this file
MPL115A1.h Show annotated file Show diff for this revision Revisions of this file 
--- a/MPL115A1.cpp	Tue Apr 17 07:44:48 2012 +0000
+++ b/MPL115A1.cpp	Tue Apr 17 15:35:24 2012 +0000
@@ -217,5 +217,5 @@
     
     // Tadc is 472 counts at 25degC, -5.35 counts/degC
     // return ((float)uiTadc - 472.0)/(-5.35) + 25
-    return (605.75-uiTadc)/5.35;
+    return (605.75-uiTadc)*0.186916;
 }
\ No newline at end of file

--- a/MPL115A1.h	Tue Apr 17 07:44:48 2012 +0000
+++ b/MPL115A1.h	Tue Apr 17 15:35:24 2012 +0000
@@ -55,8 +55,15 @@
     //DigitalOut sdn; // shutdown pin, high=on, low=off
     
 public:
+    /** Create a barometer object connected to the SPI bus and specified chip select pin
+    *
+    * @param spi SPI master object
+    * @param ncs chip select pin
+    */
     MPL115A1(SPI& spi, PinName ncs);
+    /** start measurement, read registers, calculate and return pressure */
     float readPressure();
+    /** start measurement, read registers, calculate and return temperature */
     float readTemperature();
 
 private: