ESP8266.2.ar!
The incoming measurement data from the particulate matter measuring station can be displayed as a Javascript variable in the AR display – so far only runs locally in the home network.
The AR example can be seen again here:
https://more.tentvision.org/ws/fein/aframe-mit.js.variablen27.11.18.html
Two versions:
https://more.tentvision.org/ws/fein/aframe-gltf.10.11.18.html
https://more.tentvision.org/ws/fein/aframe-gltf.kante.html
https://more.tentvision.org/ws/fein/aframe-gltf.kante.2.html
This marker is required in addition to a smartphone with a camera: