Anyone use a small automatic feeder?

I'm looking for a small automatic feeder that will release feed on a timer. I want one small enough for just one or two head of cattle. I'm trying to figure out a way to feed our steer in the afternoon on a regular schedule even when myself or my husband have to work late. Anyone have a suggestion of a type/brand that works or doesn't? I've been googling and looking online but haven't found exactly what I'm looking for yet.

I think you may have better results trying to find something like that in the swine world. Good Luck