We will add a new service to the already existing example from Gatt. This new service will publish two new characteristics to begin with: one for humidity and the other for temperature measurements. We will read the measurements the same way using the techniques we've discussed in Chapter 2, Server Management with Pi. To read these measurements, we will create two new files with content similar to the sense.py file that we discussed Chapter 2, Server Management with Pi. Let's create two files under the home directory, and name them humidity.py and temperature.py. The temperature.py file has the following content:

#!/usr/bin/python

import sys
import Adafruit_DHT

humidity, temperature = Adafruit_DHT.read_retry(Adafruit_DHT.DHT11, 4)
print str(temperature)

The humidity.py file has similar content. The only difference is that it prints out the humidity part of the measurement instead of the temperature:

#!/usr/bin/python

import sys
import Adafruit_DHT...