mbed_tt fork

Dependencies:   mbed

Fork of LM35 by kirthiga annamalai

main.cpp

Committer:
kirthigaannamalai
Date:
2015-01-14
Revision:
1:f7f1edaa8d90
Parent:
0:e035f4506cd7

File content as of revision 1:f7f1edaa8d90:

#include "mbed.h"

//Print temperature from LM61 analog temperature sensor

//set p15 to analog input to read LM61 sensor's voltage output
AnalogIn LM61(p15);

//also setting unused analog input pins to digital outputs reduces A/D noise a bit
//see http://mbed.org/users/chris/notebook/Getting-best-ADC-performance/
DigitalOut P16(p16);
DigitalOut myled(LED1);
DigitalOut myled2(LED2);


int main()
{
    float tempC, tempF;

    while(1) {
        //conversion to degrees C - from sensor output voltage per LM61 data sheet
        tempC = ((LM61*3.3)-0.600)*100.0;
        //convert to degrees F
        tempF = (9.0*tempC)/5.0 + 32.0;
        //print current temp
        printf("%5.2F C %5.2F F \n\r", tempC, tempF);
        wait(.5);
        if(tempF=75)
         {
        myled = 1;
        myled2=0;
        wait(0.5);
        }
        else
         {
         myled = 0;
        myled2=1;
        wait(0.5);
        }
    }
}