title: read temperature sensor value on intel edison using python mraa
body: <p>I have configured temperature sensor with intel edison. I am trying to read temperature sensor values using following python code</p>
  
  <pre><code>import mraa
  import time
  import sys
  import math
  
  tmp = mraa.Gpio(2)
  tmp.dir(mraa.DIR_IN)
  i=0
  while i&lt;100:
      print "Let's talk about Temperature  %s." % tmp.read()
      time. sleep(3)
      i+=1
  exit()
  </code></pre>
  
  <p>But this code is return always 0 as reading value. </p>
  
  <p>I am new to intel edison and python. So any help will be appreciating. 
  Thanks</p>