Irayya Mathad / Mbed 2 deprecated Temp36GZ_sensor

Testing Temperature sensors

Dependencies:   mbed

main.cpp@0:1b2c834b3e7a, 2017-05-25 (annotated)

Committer:
irayya
Date:
Thu May 25 06:04:57 2017 +0000
Revision:
0:1b2c834b3e7a
Temperature sensor

Who changed what in which revision?

UserRevisionLine numberNew contents of line
irayya 0:1b2c834b3e7a 1 #include "mbed.h"
irayya 0:1b2c834b3e7a 2
irayya 0:1b2c834b3e7a 3
irayya 0:1b2c834b3e7a 4 AnalogIn temp(A1);
irayya 0:1b2c834b3e7a 5 Serial pc(USBTX,USBRX);
irayya 0:1b2c834b3e7a 6 DigitalOut LED(D0);
irayya 0:1b2c834b3e7a 7
irayya 0:1b2c834b3e7a 8 int main()
irayya 0:1b2c834b3e7a 9 {
irayya 0:1b2c834b3e7a 10 float tempC, tempF;
irayya 0:1b2c834b3e7a 11
irayya 0:1b2c834b3e7a 12 while(1) {
irayya 0:1b2c834b3e7a 13 //conversion to degrees C - from sensor output voltage
irayya 0:1b2c834b3e7a 14 float tempout=temp.read();
irayya 0:1b2c834b3e7a 15 pc.printf("analog value of temperature sensor is %f: ",tempout);
irayya 0:1b2c834b3e7a 16
irayya 0:1b2c834b3e7a 17 tempC = ((tempout*3.3)-0.600)*100.0;
irayya 0:1b2c834b3e7a 18 //convert to degrees F
irayya 0:1b2c834b3e7a 19 tempF = (9.0*tempC)/5.0 + 32.0;
irayya 0:1b2c834b3e7a 20 //print the temp
irayya 0:1b2c834b3e7a 21 printf("%5.2F C %5.2F F \n\r", tempC, tempF);
irayya 0:1b2c834b3e7a 22 wait(0.5);
irayya 0:1b2c834b3e7a 23
irayya 0:1b2c834b3e7a 24 if(tempC>35.30)
irayya 0:1b2c834b3e7a 25 {
irayya 0:1b2c834b3e7a 26 LED=1;
irayya 0:1b2c834b3e7a 27 wait(1);
irayya 0:1b2c834b3e7a 28 LED=0;
irayya 0:1b2c834b3e7a 29 }
irayya 0:1b2c834b3e7a 30 else
irayya 0:1b2c834b3e7a 31 LED=0;
irayya 0:1b2c834b3e7a 32 }
irayya 0:1b2c834b3e7a 33 }