That’s the actual wild part; using a simple (~$5) SOC to support a dynamic, remotely manageable, UI for an industrial appliance as in this case is reasonable. But dedicated a system per dispenser head is wild.
I guess it could possibly be deemed to be worth it for an ‘industrial’ application like this as it could reduce per-head downtime if just one fails. But man, that’s a lot of silicon for such a task.
Which is spelled pieced but pronounced Lemmy. Everyone knows that.