Configuring the one-wire protocol

Open a terminal in the Raspberry Pi, and type the following:

sudo nano /boot/config.txt

You should type the following line at the bottom of the page to configure the protocol and define the pin where the one-wire protocol will communicate:

dtoverlay=w1-gpio

The next step is to reboot the Raspberry Pi. After a few minutes, open the terminal and type the following lines:

sudo modprobew1-gpio
sudo modprobe w1-therm

Enter the folder and select the device that will be configured:

cd /sys/bus/w1/devices
ls

Select the device that will be set up. Change  xxxx to the serial number of the device that will set up in the protocol:

cd 28-xxxx
cat w1_slave

You will see the following:

After that, you will see one line which says Yes if it appears that the temperature reading is done like this: t=29.562.

Software configuration

Let's now look at the code to display the temperature in degrees Celsius and Fahrenheit every second on the screen.

Here we import the libraries...