Singfrid is a node based smart home solution using existing technologies. Singfrid's main goals are:

• 🚀 Simple and intuitive user interface (setup and operation)
• 🥇 Add instant value to your home/office
• ♻️ Reuse your old/obsolete single board computers (SBC)

Compared to existing solutions, which either rely on cloud computing or run on a central (local) controller, a Singfrid node can run wherever it is needed. Singfrid can run in a online or offline environment, Singfrid can run on old or new hardware.

• If someone opens your fridge, an angel sound is played on your kitchen Sonos
• If someone opens a window you hear birds singing in you living room Sonos
• Validate Humidity in your basement
• If you enter the toilet, play "Jaws" soundtrack
• Use RFID cards to select different audio books on your Sonos
• Automatically dim you lights when you start the Netflix application on your TV (and the TV supports cast v2)
• If the door opens at night and the Hue light in the kitchen is off, dim the kitchen light to 15%, wait 10 minutes and then power off
• Halloween fun for your whole family!
• Rickroll your office buddies
• Send MQTT events to your MQTT server to aggregate all actions in your home
• Measure if the Wash Machine is still running and reflect the state (running / not) in a Dashboard

• Software: https://nodered.org is used as main "smart home" solution, mdns is used as discovery mechanism and Docker is used as defined runtime.
• Hardware: Any single board computer that runs Node.js - how many unused RPI's are lying around in your office or home?

• make sure docker is installed. If not check out https://docs.docker.com/engine/install/debian/
• Currently the RPI host OS needs to have avahi and dbus running - which is mapped inside the docker image. This is needed for node discovery
• execute docker run -it --rm -v node_red_data:/data -v /var/run/avahi-daemon:/var/run/avahi-daemon -v /var/run/dbus:/var/run/dbus -v /lib/modules/:/lib/modules/ --network host --privileged singfrid/smarthome:latest

• run docker run -it --rm -p 1880:1880 -v node_red_data:/data singfrid/smarthome:latest (and remember --network host does not work on OSX!)
• mdns/Bonjour discovery does NOT work due the way OSX integrated Docker

• docs: output for the singfrid.com website
• smarthome: docker source, default node-red configuration, default flows
• website: source for the singfrid.com website, output is copied to the docs directory

Singfrid uses Docker as runtime to simplify deploying.

• Docker image is based on https://github.com/node-red/node-red-docker/tree/master/docker-custom
• change to the smarthome directory
• make sure buildx is enabled
• run docker-build.sh to generate a new, multiarch Docker image AND push it to docker hub.

• autostart docker image after reboot
• node-red needs to autostart the singfrid bonjour anouncement - today this needs to be triggered manually
• build custom rpi image (is there a lean docker distro available for the rpi?)? OR script to validate if current configuration works (SPI as example?), docker is installed correctly...
• check if https://tasmota.github.io/docs/ESP32/ could/should be integrated (MQTT communication)
• Write down and test how multiple nodes communicate together (protocol, discovery etc)