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Logic Circuits

BINARY COUNTER

Counts input pulses in binary. Each T flip-flop represents one bit. The first flip-flop toggles every pulse, the second every 2 pulses, etc. Can count up to 2^n - 1.

When to Use

Item counting, score tracking, combination locks, sequential event triggering, redstone computers.

Materials

  • ▸Multiple T Flip-Flops (dropper + hopper each)
  • ▸Redstone Dust
  • ▸Repeaters

How to Build

  1. 1Build a chain of T flip-flops (one per bit of your counter).
  2. 2Connect the output of the first flip-flop to the input of the second.
  3. 3Connect each subsequent output to the next input.
  4. 4Feed your count pulses into the first flip-flop's input.
  5. 5Read the binary value from all flip-flop outputs (LSB = first, MSB = last).
  6. 6Add a reset line to all flip-flops to clear the counter.

Variants

  • ▸Ripple counter (simple chain, slight propagation delay)
  • ▸Synchronous counter (all bits update simultaneously, more complex)
  • ▸Up/down counter (reversible counting direction)
  • ▸Decade counter (resets at 10, uses feedback reset)
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