O'Reilly logo

Internet of Things Programming with JavaScript by Ruben Oliva Ramos

Stay ahead with the world's most comprehensive technology and business learning platform.

With Safari, you learn the way you learn best. Get unlimited access to videos, live online training, learning paths, books, tutorials, and more.

Start Free Trial

No credit card required

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  ...

With Safari, you learn the way you learn best. Get unlimited access to videos, live online training, learning paths, books, interactive tutorials, and more.

Start Free Trial

No credit card required