Diff: LM75B.cpp

Revision:

0:1be38995591b

Child:

1:6a70c9303bbe

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/LM75B.cpp	Fri Oct 26 20:34:16 2012 +0000
@@ -0,0 +1,49 @@
+
+/*
+Copyright (c) 2010 Donatien Garnier (donatiengar [at] gmail [dot] com)
+ 
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+ 
+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+ 
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+THE SOFTWARE.
+*/
+
+#include "LM75B.h"
+
+LM75B::LM75B(PinName sda, PinName scl) : i2c(sda, scl)
+{
+   char cmd[2];
+   cmd[0]    = LM75B_Conf;
+   cmd[1]    = 0x0;   
+   i2c.write( LM75B_ADDR, cmd, 2);
+}
+
+
+
+LM75B::~LM75B()
+{
+
+}
+
+float LM75B::read()
+{
+    char cmd[2];
+    cmd[0] = LM75B_Temp;
+   
+    i2c.write( LM75B_ADDR, cmd, 1); // Send command string
+    i2c.read( LM75B_ADDR, cmd, 2); // Send command string    
+    return (   float((cmd[0]<<8)|cmd[1]) / 256.0   );
+}