Automated farms in MCPE?

How can I make automated Farms in MCPE now that Pistons, Droppers.etc have been added?


I'd recommend looking at videos on YouTube. This is how I do any complicated redstone builds because frankly, I'm not good with redstone :p. Once you get some experience though you will see patterns with certain redstone clocks and contraptions and will be able to build your own designs!

See here to build an automatic wheat farm, or here to build 12 useful farms for pocket edition