EDIT: Sorry, didn’t read everything.
tl;dr: what @stampeder said…
@linuxdxs I personally would use MQTT for that purpose. It’s a very lightweight way of regularly publishing data through your network and fetching it with any device you want to. It’s also cross platform. You could use your android mobile as well.
I use MQTT to fetch data from and send controls to my tasmota plugs and it works very well.
There’s a module called MMM-MQTT-Bridge already published that could be used and my soon-to-be-published MMM-Tasmota would work as well as a basis.
On the Raspi’s you would need an MQTT server like mosquitto.
May not sound like the easiest way but on the publisher side it’s not more than a few lines of code.
