This article is about a specific category of redstone circuits. Minecraft redstone projects pulse circuit is a redstone circuit which generates, modifies, detects, or otherwise operates on redstone pulses.
A pulse is a temporary change in redstone power that eventually reverts to its original state. An on-pulse is when a redstone signal turns on, then off again. On-pulses are usually just called «pulses» unless there is a need to differentiate them from off-pulses. An off-pulse is when a redstone signal turns off, then on again. The pulse length of a pulse is how long it lasts.
3-tick pulse» for a pulse that turns off 0. A piston or sticky piston usually takes 1. A redstone comparator will not transmit a half-tick pulse, only pulses with durations of 1 tick or more. A redstone lamp can only be deactivated by an off-pulse of minimum 2 ticks. A redstone torch cannot be deactivated by a pulse shorter than 1. When building circuits, it can sometimes be helpful to observe the pulses being produced to confirm their duration or spacing. 1 tick, the pulse length may appear to change as it moves through the oscilloscope.
5-tick pulse may sometimes power 3 repeaters and sometimes 4 repeaters. 1-tick pulse can activate a comparator, but a half-tick pulse cannot. Multiple oscilloscopes can be laid in parallel to compare different pulses. For example, you can determine a circuit’s delay by putting the circuit’s input signal through one oscilloscope and the circuit’s output through another and counting the difference between the input and output signal edges. Oscilloscopes are useful but sometimes require you to be in an inconvenient position to observe them.
If you just need to observe the simultaneity of multiple pulses it can be useful to use pistons or note blocks and observe their movement or note particles from any angle. Redstone lamps are less useful for this purpose because they take 2 ticks to turn off. A circuit’s output can be powered or unpowered. If an output stays in the same state until the circuit is triggered again, that output state is called «stable». If a circuit has only one stable output state then the circuit is called «monostable». For example, if a powered state will inevitably revert to the unpowered state, but the unpowered state won’t change until the input is triggered.