A simple sugar cane farm that can be expanded at will. It works with the observer blocks.

Instructions:

Material

• List for an Module
  • 1 Redstone
  • 1 water bucket
  • 1 sand, grass, earth or red sand block
  • 1 Sugar cane
  • at least 1 funnel
  • at least 1 chest
  • 1 normal piston
  • Blocks
• List for the plant shown
  • 8 Redstone
  • 2 water buckets
    • Creates an infinite water source and uses it to fill the rest of the holes; more on that later.
  • 8 blocks of sand, grass, earth or red sand
  • 8 Sugar cane
  • 16 funnels
  • 2 chests
  • 8 normal pistons
  • Blocks

Instruction

1. Place the blocks, the water, the fertile block and the sugar cane on it.
2. Places the piston and the observer.
3. "Wire" the piston with a block and some redstone.
4. Places the rest of the materials as shown.

Optional functions

• You can now extend this module as much as you like; the following is important:
  • Use two water buckets, create infinite water sources and fill up all holes
  • You can keep the Redstone line going forever, since Observer gives out a starting strength of 15
  • Once a cane reaches the observer, all cobs are activated, resulting in faster yields
  • It doesn't matter how you place the funnels, the main thing is that they lead to the box in the middle at some point

Closing words

I hope you guys like this build idea! If so, rate it well or show me with a comment or a sister building idea.DeBedenBunnies