Coding a temperature reading system

In this section, we will develop the program to take temperature readers from a sensor. As mentioned, the DS18B20 sensor works with the 1-wire protocol, so we will use the Arduino IDE libraries to program it. Let's get started:

1. As the first step, we are going to install the OneWire library. Open the Arduino IDE, and then go to the Tools menu and then Manage Libraries (see Figure 9.8):
   

   Figure 9.8 – Library manager

2. Next, we will search the library by entering the word OneWire in the search box. We will install the one created by the 1-wire protocol developers, so please install the one from Jim Studt and his colleagues (see Figure 9.9):
   

   Figure 9.9 – Installing the OneWire library

3. Next, we are going to add the Dallas Temperature library. For this, we enter ds18b20 in the search box and install the library developed by Miles Burton and collaborators (see Figure 9.10). This library is also available from the sensor producers...