In the second part of this chapter, we are going to add a motion sensor to the project we built in the first part and also learn how to monitor all those sensors from a single dashboard. I will connect all the sensors to a single Raspberry Pi Zero board, but you could of course have them connected to several boards that are in different parts of your smart home.
The project itself will be really easy to assemble. First, make sure that you followed all the instructions from the previous project. Then, simply connect the motion sensor to the project: VCC goes to the 3.3V pin of the Raspberry Pi, GND to GND, and the SIG pin of the sensor is connected to Raspberry Pi GPIO18.
The following image is the final result:
Let's now see how to configure the project. In order to access the measurements from anywhere in the world, we'll use the aREST framework again, which we have already used in several projects of the book. However, here we'll use the cloud access...