Automatic feeder

[edikpok]

I am going away for 2 weeks. A friend of mine agreed to drop by every 2 days to feed my 29g biocube reef tank with some frozen food. I was thinking about making an automatic feeder with live brine shrimps to feed the fish. Any ideas how to make one? or are they available commercially? or maybe someone here has one I could borrow or buy?

Thanks!