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Pulse Circuits

MONOSTABLE CIRCUIT

Produces exactly one output pulse of a fixed duration regardless of how long the input is held. Combines pulse limiting and edge detection for reliable single-shot behavior.

When to Use

Ensuring exactly one dispenser shot per button press, reliable T flip-flop input, debouncing noisy signals.

Materials

  • ▸1 Redstone Repeater
  • ▸1 Redstone Comparator
  • ▸Redstone Dust
  • ▸Solid blocks

How to Build

  1. 1Run input through a repeater set to 1 tick.
  2. 2Split the repeater output: one path to the circuit output, one path looping to a comparator side input.
  3. 3The comparator compares the direct input (back) against the delayed loop (side).
  4. 4On the rising edge of the input, the output fires for exactly the repeater delay duration.
  5. 5The feedback loop prevents re-triggering until the input fully resets.

Variants

  • ▸Comparator monostable (most compact)
  • ▸Piston monostable (mechanical, very reliable)
  • ▸Dropper-based monostable (item-count dependent)
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