I have two of these feeders. They work great! You could even put wet food in them (they have ice packs to go underneath). There are three settings, it turns every 6, 12 or 24 hours.
I never use these anymore since my two cats can be free fed and not overeat. I had used these before with Taz and Paizly because Taz needed his wet food when he was sick.
And since you won't be gone for too long it should be just enough slots to feed Toby.