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 
diff -r f8ee2a5e377a -r b2adf1b62898 MPL115A1.cpp
--- 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

diff -r f8ee2a5e377a -r b2adf1b62898 MPL115A1.h
--- 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: