I am very new to node-red but I am learning.
I have a raspberry pi and 4 relay board with node-red functioning properly now. But I have another spot in the house where I would like to switch some relays. I was wondering how I could send a node-red command to the arduino to switch the relay board connected to it? Like an outpost.
Is that possible? What needs to run on the arduino to make that work?
If it is, I have all kinds of ideas to deploy in the house. With the Rpi as the main hub to control all of them. Maybe I am getting ahead of myself