Imaging your SD card
Follow the instructions from the Raspberry Pi website to image your SD card.
When you boot with a fresh install of Raspbian, the default credentials are:
- Username:
pi - Password:
raspberry
Connect to your network
For home wifi connections this should be fairly straight forward. Click on the wifi icon on the top-right of screen, find your Wifi network and enter your password.
If you are attempting to connect to an Enterprise (managed) network, it can be a bit trickier. The configuration we managed to get working at ISL is here.
Software installation & updates
Open the Raspberry Pi configuration tool (Raspberry Pi menu / Preferences / Raspberry Pi configuration ):
- Enable VNC Server
- Enable SSH Server
Create a file called requirements.txt with the following content:
SpeechRecognition
PyAudio
bs4
youtube_dl
gTTS
google-api-python-client
requests
Wave
pytz
playsound
pafy
Open a terminal and run the following:
# Update and upgrade our system generally
sudo apt update
sudo apt -y upgrade
# Updates needed for PyAudio to install
sudo apt install -y libportaudio0 libportaudio2 libportaudiocpp0 portaudio19-dev
sudo apt install -y python-dev
# Upgrade PIP to deal with TLS changes
curl https://bootstrap.pypa.io/get-pip.py | sudo python3
# Upgrade setuptools to be compatible with new PIP
sudo pip3 install --upgrade setuptools
# Utilities
sudo apt install -y firefox
sudo apt install -y filezilla
sudo apt install -y vlc-nox
sudo apt install -y vlc
# Audio decoding libraries
sudo apt install -y flac
sudo apt install -y audacity
sudo apt install -y mpg123
# Remove unwanted programs
sudo apt purge -y wolfram-engine
sudo apt purge -y libreoffice*
sudo apt purge -y scratch
sudo apt clean
sudo apt autoremove -y
# Install Python3 dependances
sudo pip3 install -r requirements.txt
sudo pip3 install flask --upgrade
# Upgrade any outdated python packages
# derived from - https://stackoverflow.com/questions/2720014/upgrading-all-packages-with-pip
pip3 list --outdated | cut -d ' ' -f 1 | tail +3 | xargs -n1 sudo pip3 install --upgrade
Setup OpenCV
If you search for documentation on getting OpenCV working on the Raspberry Pi, most articles will talk about needing to compile OpenCV. This is presently not necessary. The following procedure is currently working on a Raspberry Pi 3 with Raspbian 2018-06-27. I will update if/when the situation changes. (October 2018)
Open the Raspberry Pi configuration tool (Raspberry Pi menu / Preferences / Raspberry Pi configuration ):
- Enable Pi CAMERA
Open a terminal and work your way through the following commands:
sudo apt install -y build-essential cmake pkg-config
sudo apt install -y libhdf5-dev libhdf5-serial-dev
sudo apt install -y libqtwebkit4 libqt4-test
sudo apt install -y libjpeg-dev libtiff5-dev libjasper-dev libpng12-dev
sudo apt install -y libavcodec-dev libavformat-dev libswscale-dev libv4l-dev
sudo apt install -y libxvidcore-dev libx264-dev
sudo apt install -y libgtk2.0-dev libgtk-3-dev
sudo apt install -y libatlas-base-dev gfortran
sudo pip3 install opencv-contrib-python
sudo pip3 install imutils
sudo pip3 install opencv-python
sudo pip3 install "picamera[array]"
# Enable the Raspberry Pi camera to be detected by Open CV
# https://stackoverflow.com/a/37530016
sudo modprobe bcm2835-v4l2
sudo echo "bcm2835-v4l2" >> /etc/modules
Reboot when complete for all changes to take effect
References:
- https://www.pyimagesearch.com/2018/09/19/pip-install-opencv/
- https://www.pyimagesearch.com/2017/09/04/raspbian-stretch-install-opencv-3-python-on-your-raspberry-pi/
- https://www.alatortsev.com/2018/04/27/installing-opencv-on-raspberry-pi-3-b/
- https://stackoverflow.com/a/37530016