Displaying sensory data on our dashboard

To provide our dashboard data, we will create a new Python file called SecurityData.py where we will store the SecurityData class. Before we do that, let's build our circuit.

Home security dashboard with a temperature sensor

We will build our first version of the home security dashboard with a DHT11 temperature and humidity sensor, a PIR sensor, and a latching button (or key switch). The following is the Fritzing diagram for our home security dashboard:

The circuit connects as follows:

• GND from DHT11 to GND
• VCC on DHT11 to 5V DC
• Signal on the DHT11 to GPIO pin 19
• GND from PIR sensor to GND
• VCC on PIR sensor to 5V DC
• Signal on PIR sensor to GPIO pin4
• One end of the latching button...