Plant Factory for agriculture

[dynamicdave]

Have you thought about using a Finite State Machine (FSM) ?
It might be a bit of an overkill for what you are trying to do, but would seem to answer your requirement.
I created a write-up about FSMs on 'Share Your Projects' earlier this year.
Here's the link.

Finite State Machine (FSM) - UK traffic lights

UK traffic lights and FSM The above link will take you to a tutorial about Finite State Machines (FSM). The model is based on the UK traffic light sequence. Here's a link to the Node-RED flow. Node-RED flow Trust you enjoy reading the tutorial.

There's also a Node-RED node written by @cflurin that implements dynamic FSM.

node-red-contrib-dsm