tfcatflap

Work in progress

Hardware

• SureFlap Microchip Pet Door
• Raspberry Pi Zero 2 W
• MH-SR602 Mini Motion Sensor
• TB6612 Motor Driver
• Night Vision Wide Angle Fisheye 5MP Raspi Cam
• Infrared IR LED Light
• Some cables

Training the model

Look at the repository tfcatflap-training to see how the custom model has been trained.

Install the software

Setup the Pi with Raspbian (preferably the Lite version in 32 bit) and then install all necessary packages:

sudo apt-get update 
sudo apt-get install git pip virtualenv

You have to enable legacy camera support, as it is disabled by default. To do so, type sudo raspi-config in a terminal and then choose Interface Options and enable Legacy Camera and then reboot.

Then clone the respsitory into your home directory:

cd
git clone https://github.com/swisscheese38/tfcatflap.git

Create a new virtual environment:

cd tfcatflap/
virtualenv venv
source venv/bin/activate

Once you have sourced the new virtual environment venv you should install the required dependencies inside of it:

pip install -r requirements.txt

Afterwards you can deactivate out of your virtual environment and change the URL in tfcatflap.service to your Home Assistant's Push Camera Webhook URL:

deactivate
vi tfcatflap.service

Install the script as a systemd service and start it (it will now automatically be started on each boot):

sudo cp tfcatflap.service /lib/systemd/system/.
sudo systemctl start tfcatflap.service
sudo systemctl enable tfcatflap.service

Verify that the script is working by checking it's log output:

journalctl -u tfcatflap.service

Errors you might encounter

When running on raspbian you might get any of the following errors:

libcblas.so.3: cannot open shared object file: No such file or directory
libopenjp2.so.7: cannot open shared object file: No such file or directory
libavcodec.so.58: cannot open shared object file: No such file or directory
libavformat.so.58: cannot open shared object file: No such file or directory
libswscale.so.5: cannot open shared object file: No such file or directory
libgtk-3.so.0: cannot open shared object file: No such file or directory

in that case you need install the following packages:

sudo apt-get install libatlas-base-dev
sudo apt-get install libopenjp2-7
sudo apt-get install libavcodec-dev
sudo apt-get install libavformat-dev
sudo apt-get install libswscale-dev
sudo apt-get install libgtk-3-dev