Hi, DeeBeeKay! What is the state of your project? I read the thread a month ago, but now it is a bit hard to keep track on the changes. Would you mind pointing me to the solution? If you found it, of course. So please let me know.
There is another project on github, if you are curious. I discuss it here: https://community.home-assistant.io/t/using-esphome-to-build-a-water-flow-rate-meter-j-pipe-github-version/239818