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Clock Circuits

HOPPER CLOCK

Two hoppers facing each other with items bouncing between them. A comparator reads the item count to generate a signal. Clock period depends on the number of items.

When to Use

Long-period clocks for daylight cycles, slow farms, timed events that need minutes between pulses.

Materials

  • ▸2 Hoppers
  • ▸2 Redstone Comparators
  • ▸Redstone Dust
  • ▸Items (any stackable)
  • ▸Solid blocks

How to Build

  1. 1Place two hoppers facing each other (shift-click placement).
  2. 2Put a comparator reading out of each hopper.
  3. 3Place items in one hopper (more items = longer period per side).
  4. 4The items transfer back and forth; comparators detect fullness changes.
  5. 5Use the comparator output as your clock signal.
  6. 6Add a lever to one hopper to lock it and pause the clock.

Variants

  • ▸Single-comparator hopper clock (simpler, one output)
  • ▸Multi-hopper chain (for extremely long periods)
  • ▸Adjustable hopper clock (add/remove items to change period)
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