rogierslag / p1-ws

Read out your P1 meter and distribute with Websockets

Browser-based live P1 monitoring

1. Get a Raspberry Pi
2. Get Docker onto it
3. Connect your Pi with a P1 cable to your Smart Meter
4. Run the script below (correct your variables, and set the correct value for --device). If you don't define WSS_URL an emulator will start on http://localhost:3000. You can set WSS_URL to ws://<ip>:<port> too.
5. Visit the page on http://127.0.0.1:3000. Switch the bound port in the Docker command otherwise.

trap "rm -Rf p1-ws" ERR
trap "rm -Rf p1-ws" EXIT
cd p1-ws
docker build --network=host --tag=p1-ws .
cd -

docker run \
  --name=p1-ws \
  -e PUID=$(id -u) \
  -e PGID=$(id -g) \
  -e "WSS_URL=wss://power.rogierslag.nl" \
  -p 127.0.0.1:3003:3000 \
  -d \
  --rm \
  --device /dev/ttyUSB0:/dev/ttyUSB0 \
  p1-ws

Sometimes the container will not receive any updates. This seems to be a Docker bug. Just stop the container docker stop p1-ws and re-run the script generally "fixes" it.