
This happens because the signal changes back to its original state before the redstone comparator checks its input states. This results in redstone comparators not usually responding to 1-tick fluctuations of power or signal strength - for example, a 1-clock input is treated as always off from the side, and always on from the rear. Redstone comparators check their power state before their scheduled ticks update. This applies to changing signal strengths as well as simply to turning on and off. It takes 1 redstone tick (2 game ticks, or 0.1 seconds barring lag) for signals to move through a redstone comparator, either from the rear or from the sides. The redstone comparator's front is its output.

Side inputs are accepted only from redstone dust, block of redstone, redstone repeaters, other comparators, and observers in specific scenarios.

The redstone comparator can take a signal strength input from its rear as well as from both sides.

In Bedrock Edition, a comparator can also be placed on walls and fences. If lava flows into a redstone comparator's space, the redstone comparator is destroyed without dropping as an item.Ī redstone comparator can be placed on the top of any opaque block with a solid full-height top surface (including upside-down slabs and upside-down stairs). a piston tries to push it or moves a block into its space.its attachment block is moved, removed, or destroyed.Redstone comparators generate in ancient cities.Ī redstone comparator can be broken instantly with any tool, or by hand, and drops itself as an item.Ī redstone comparator is removed and dropped as an item if:
