How to install fresh Image and FDIA code on RPi

Prepare SD Card

open RPi Imager
Select RPi hardware , Image RPI OS (Debian “Bookworm”) Lite, choose your SD Card
Select next and choose configure settings.
Enter Hostname
Enter Username and password
Add your ssh public key in ther service section authentication via public key
Click next and procceed with imaging.
Insert SD Card in RPi1 b+ (or above Hardware) and power on
System will start up and after a while it reboots automatically.
After second boot you can try to login
sudo su switch to root user
nmcli -p connection show show network interface config
nmcli c mod "Wired connection 1" ipv4.addresses 10.0.0.220/24 ipv4.method manual set static ip
nmcli con mod "Wired connection 1" ipv4.gateway 10.0.0.1 set gateway ip
nmcli con mod "Wired connection 1" ipv4.dns 10.0.0.1set dns to your home local network router (most use cases)
If using multiple DNS Servers set like this nmcli con mod "Wired connection 1" ipv4.dns "8.8.8.8,8.8.4.4"
If you want to use multiple IP’s you can set nmcli c mod "Wired connection 1" ipv4.addresses "10.0.0.220/24, 10.0.0.221/24, 10.0.0.222/24" ipv4.method manual like this
shutdown interface and up again to activate settings nmcli c down "Wired connection 1" && sudo nmcli c up "Wired connection 1"
show network config run nmcli -p connection show "Wired connection 1"
Now it’s time to install required base software sudo apt install mc git screen curl python3-pip python3.11-venv direnv
For Raspberry PI 1 with less Ram disable RAM /tmp filesystem systemctl mask tmp.mount and reboot

Remark: With RPi 1 and Debian Trixi above you need to install

apt install -y \
python3-dev python3-pip python3-setuptools python3-wheel \
libjpeg-dev zlib1g-dev libtiff5-dev libfreetype6-dev \
liblcms2-dev libwebp-dev libopenjp2-7-dev libjpeg62-turbo-dev \
tk-dev tcl-dev

Because for Pillow 12 on Python 3.13 above it need to be recompiled.

cd /usr/local/bin
git clone https://github.com/OliverDrechsler/front_door_intercom_automation.git clone repo.
cd front_door_intercom_automation
python3 -m venv .venv create a python virtualenv.
chmod +x .venv/bin/activate
.venv/bin/activate
add eval "$(direnv hook bash)" to ~/.bashrc
run source ~/.bashrc

create .envrc in fdia dir and add lines

export VIRTUAL_ENV=./.venv
layout python-venv $VIRTUAL_ENV

now run direnv allow
for pillow on python 3.13+ on RPi1 (armv6 old system install upo max version 12.0)

```
apt install -y \
    python3-dev python3-pip python3-setuptools python3-wheel \
    libjpeg-dev zlib1g-dev libtiff5-dev libfreetype6-dev \
    liblcms2-dev libwebp-dev libopenjp2-7-dev libjpeg62-turbo-dev \
    tk-dev tcl-dev

/usr/local/bin/front_door_intercom_automation/.venv/bin/pip3 install --no-cache-dir --force-reinstall Pillow
```

.venv/bin/pip3 install -r requirements.txtto install required libs.
configure now config.yaml
.venv/bin/python3 -m fdia test run
Edit file fdia.service and adjust to your path to ExecStart=/usr/local/bin/front_door_intercom_automation/.venv/bin/python3 /usr/local/bin/front_door_intercom_automation/fdia.py because python fdia code runs in python virtualenv therefore we’ve to call this python3 executable before.
To run fdia as a service on startup with root permissions
copy fdia.serviceto /etc/systemd/system/to your RPi systemd deamon folder.
activate new service systemctl enable fdia.service
Run systemctl daemon-reload and systemctl start fdiato start it as a service.
check log output journalctl -xu fdia -f

Hint for direnv error

In case you get an error with direnv, you can try to run the following command to fix it: Command:

direnv allow

Error:

direnv: loading front_door_intercom_automation/.envrc
environment:747: layout_python-venv: command not found
direnv: export +VIRTUAL_ENV

create a new file in ~/.config/direnv/direnvrc with content:

layout_python-venv() {
  local python=${1:-python3}
  [[ $# -gt 0 ]] && shift
  unset PYTHONHOME
  if [[ -n $VIRTUAL_ENV ]]; then
      VIRTUAL_ENV=$(realpath "${VIRTUAL_ENV}")
  else
      local python_version
      python_version=$("$python" -c "import platform; print(platform.python_version())")
      if [[ -z $python_version ]]; then
      log_error "Could not detect Python version"
      return 1
      fi
      VIRTUAL_ENV=$PWD/.direnv/python-venv-$python_version
  fi
  export VIRTUAL_ENV
  if [[ ! -d $VIRTUAL_ENV ]]; then
      log_status "no venv found; creating $VIRTUAL_ENV"
      "$python" -m venv "$VIRTUAL_ENV"
  fi
  PATH="${VIRTUAL_ENV}/bin:${PATH}"
  export PATH
}

run now source ~/.bashrc and than

cd /usr/local/bin/front_door_intercom_automation
direnv allow