Rainmaker Conttoller

Rainmaker smart sprinkler controller compatible to SmartThings and Google Home?

Do you mean Rain Machine? If so, yes, there is a community app/device handler here for that, and it works perfectly.

Thank Yes, I’m sorry I do mean Rainmachine. Thank you for letting me know.
Much appreciated

Thread located here;

I haven’t used the forum much and I’m not sure what you mean by app/device handler. Is this someone who can help me?

You could ask for help in that thread, but if you read through the items you will find links/instructions on how to deploy it. If you ask the app author will probably give you a nice summary post with instructions/links as well.