I had a great one, but haven't been able to locate a replacement. Maybe you'll have better luck and post.
It was the Ergo Sys 2000GL and could hold 20 pounds of dog food. It came with standard three-prong plugged into a timer, which I removed, so that the feeder was "On" whenever connected to power. It was perfect for connecting to a smart plug (used Insteon at the time) to make a smart timer. Just adjust the duration of "On" time based on the size of your dog food. If changing dog food or chunk size of same food, I timed how long it took for the feeder to dispense the right amount, then set the smart plug to automatically run for that amount of time. (Usually programmed a couple extra "Off" commands since it was an Insteon that infrequently missed a command to prevent an accidental overfeeding).
Bought it from SmartHome. Here's the wayback link:
https://web.archive.org/web/20130525051 ... rge/p.aspx