Qwiic Kit for Raspberry Pi Hookup Guide

Pages
Contributors: M-Short, bboyho
Favorited Favorite 1

Configure Your Pi

We are going to assume you already have a Raspberry Pi up and running with Raspbian. We'll also assume that it is connected to the Internet. If not, check out our starter kits and tutorials on setting up a Raspberry Pi.

Raspberry Pi 3 Starter Kit Hookup Guide

April 11, 2016

Guide for getting going with the Raspberry Pi 3 Model B and Raspberry Pi 3 Model B+ starter kit.

Make sure to update the image so that we have the latest distribution. Enter the following commands in the command line individually to update your image.

language:bash
sudo apt-get update
sudo apt-get dist-upgrade
Note: sudo stands for "Super User Do", it is a way to give you superuser powers from the command line. Be careful whenever using sudo.

User Configuration Settings

Once you are set up, I highly recommend changing your password. At this point, we are going be dealing with the Internet of things and don't want unsavory characters sneaking into your system using the default login: (username: pi, password: raspberry).

The raspi-config tool is a quick way to change your password as well as setup the network, language, keyboard, etc. Type the following command using the command line and then go through the menus to update your information.

language:bash
sudo raspi-config

You'll want to enable the I2C pins using the tool to read the sensors on the I2C bus.

Enabling I2C on a Pi

Raspi-config for I2C

I2C Clock Stretching

The CCS811 sensor requires something known as I2C clock stretching to work, so let's get this setup as well. Open up the file /boot/config.txt in your favorite editor. We'll use the following command to edit the file through the command line.

language:bash
sudo nano /boot/config.txt

After typing the command, hit ENTER on your keyboard.

Adjusting I2C Settings in config.txt

Scroll down until you find the block of code that contains the following lines. It will look similar to the following lines.

language:bash
dtparam=i2c_arm=on
#dtparam=i2s=on
#dtparam=spi=on

Add the following line(s) to enable the clock stretching.

language:bash
# Enable I2C clock stretching
dtparam=i2c_arm_baudrate=10000

When you are finished, you should see something similar to the image below.

I2C Clock Stretching

Then save your file and exit out. We'll use the following commands CTRL+ O and then Enter to save. Then CTRL + X to exit.

Save Changes

You will need to restart your Pi before the settings can take effect after every change to the config.txt. After all that hard work, let's reboot your Pi with the following command.

language:bash
sudo reboot

After typing the command, hit the ENTER key.

Reboot Pi