Chris Styles / LM75B

A simply library for the LM75B I2C temperature sensor

Dependents:   LM75B-HelloWorld app-board-Sprint-SMS-LM75B SprintUSBModemWebsocketTest-Temp app-board-Ethernet-Websocket ... more

LM75B.cpp

Committer:
chris
Date:
2012-10-26
Revision:
1:6a70c9303bbe
Parent:
0:1be38995591b

File content as of revision 1:6a70c9303bbe:

#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   );
}