In this section, we build a simple decision system using fuzzy logic on Raspberry Pi. We use Python for implementation.
We build a system to monitor temperature and humidity in a room to decide if the environment is comfortable or not. If the environment is not comfortable, then we turn on a cooler machine.
The following is our design:
To sense temperature and humidity, we use the DHT22 module. We already learned about this module in Chapter 1, Make Your IoT Project Smart. A relay module is used to connect our Raspberry Pi to a cooler machine.
Let's start to build our system.
We use DHT22 and relay modules ...