ha-climacell-weather VS SonoffLAN

You need to replace the old climacell sensor in HA following the new sensor structure, example available at the developer's site: https://github.com/r-renato/ha-climacell-weather

If you're stuck on the Sonoff Micro as you seem to be (they are pretty cool and cheap as chips so I get it) it runs off the eWeLink app but there's a Sonoff add-on for Home Assistant in HACS here https://github.com/AlexxIT/SonoffLAN that makes it work locally, but it does need to be added via the app first.

This is the HACS available integration with HA that I'm using: https://github.com/AlexxIT/SonoffLAN

You plug it in and set it up to go on/off whenever you want. That model comes with monitoring aka it can see how much current is going through it. Then you use something like https://github.com/AlexxIT/SonoffLAN with Home Assistant and setup a specific automation. e.g. if watts usage is > X, then do Y. yadda yadda.

I can recommend these together with the sonoff zigbee bridge using the custom integration sonoffLAN https://github.com/AlexxIT/SonoffLAN.

And for the node-red direct connection, I haven't tried that. I use AlexIT's SonoffLAN to connect between my Sonoff Basics and Minis to HassOS without connecting to the cloud.

Using this thing https://github.com/AlexxIT/SonoffLAN I got it all working without tasmota! Well except that currently the zibgee bulb is only on/off but perhaps that can be sorted. So no need to flash anything in order to try it out at least.