I’m a bit wondering what you are trying to do. Do you want to show which devices are on the network and working, or show the actual readings/states of the devices?
If it’s the latter I would recommend Homeassistant or OpenHAB. Both interface with a lot of sensors and smart home tech, and pulling data from them is quite easy as well. I use Grafana as an intermediary to show the locally measured outside temperatures of the last couple hours.