This application is intended to be a fully fledged example of an IoT application. The app is composed of 2 different components:
-
the client Raspberry Pi Camera Client
-
the server Raspberry Pi Camera Server
The client (a Raspberry Pi with a motion (PIR) sensor and the Raspberry Pi Camera Module 2), takes a picture with the camera every time a movement is detected by the PIR sensor. Then it immediately uploads the image on the server, and if the upload is successful, it remove the local image to avoid filling the disk.
cd /home/pi/
git clone https://github.com/mastrolinux/raspberry-pi-security-camera-client.git
Those are the instructions to experiment with picamera2 with the file main.py.
NOTE
If you want to use the old stack, you have to adapt this code.
The only file requiring the old stack of PiCamera is example.py.
To use the old stack please run sudo raspi-config, and enable it selecting "Interface Options -> Legacy Camera Support".
Finally reboot your Raspberry Pi.
To use PiCamera2 you obviously have to disable the "Legacy Camera Support".
This is a simplified and corrected version of the documentation available at https://github.com/raspberrypi/picamera2
sudo apt install -y python3-pip git
sudo pip3 install jinja2
sudo apt install -y libboost-dev
sudo apt install -y libgnutls28-dev openssl libtiff5-dev
sudo apt install -y qtbase5-dev libqt5core5a libqt5gui5 libqt5widgets5
sudo apt install -y meson
sudo pip3 install pyyaml ply
sudo pip3 install --upgrade meson
sudo apt install -y libglib2.0-dev libgstreamer-plugins-base1.0-dev
# Downloading libcamera with the correct branch
mkdir $HOME/dev
cd $HOME/dev
git clone --branch picamera2 https://github.com/raspberrypi/libcamera.git
cd libcamera
# build libcamera
meson build --buildtype=release -Dpipelines=raspberrypi -Dipas=raspberrypi -Dv4l2=true -Dgstreamer=enabled -Dtest=false -Dlc-compliance=disabled -Dcam=disabled -Dqcam=enabled -Ddocumentation=disabled -Dpycamera=enabled
# install libcamera
ninja -C build
sudo ninja -C build install
# Install DRM/KMS bindings
cd $HOME/dev
git clone https://github.com/tomba/kmsxx.git
cd kmsxx
git submodule update --init
sudo apt install -y libfmt-dev libdrm-dev
meson build
ninja -C build
cd $HOME/dev
git clone https://github.com/RaspberryPiFoundation/python-v4l2.git
cd $HOME/dev
sudo pip3 install pyopengl piexif
sudo apt install -y python3-pyqt5 python3-pil
git clone https://github.com/raspberrypi/picamera2.git
sudo apt install -y python3-opencv
sudo apt install -y opencv-data
echo export PYTHONPATH=$HOME/dev/picamera2:$HOME/dev/libcamera/build/src/py:$HOME/dev/kmsxx/build/py:$HOME/dev/python-v4l2 >> ~/.bashrc
source $HOME/.bashrc
sudo apt install python3-dotenv
pip3 install -r requirements.txt
To use your own settings, you can make changes to the .env file, an example file is present as env-example. Copy it over and change it accordingly
cp env-example .env
python3 init.py
sudo cp picamera-client.service /etc/systemd/system/
sudo systemctl daemon-reload
sudo systemctl enable picamera-client.service
sudo systemctl start picamera-client.service
sudo systemctl status picamera-client.service