Redstone signs
From Craftland Minecraft Aether Server
Redstone signs
Easiest Redstone sign is the clock. Clock front
Put a sign on a stone that can transmit redstone signal, put a lever on the back.
The sign will then flip the lever on the back depending on the 2 bottom numbers on the sign, you can try different numbers, not exactly sure what qualifies the bottom number as acceptable but top one seems to be amount of ticks between each signal.
