Powered Signs

Powered Signs lets a sign print its contents, front side and back side, into the chat of players standing near it when the block beneath the sign receives redstone power. A redstone signal from a lever, button or circuit is enough to start the broadcast, and the mod reacts to both weak and strong power. Redstone wire placed under a sign can also trigger it, provided the signal reaches the block directly beneath the sign.

Each sign prints to players within a set number of blocks, in a square area around it, and the broadcast is repeated after a wait period measured in ticks. The default range is 32 blocks and the default wait is 20 ticks, which is one second. Server owners can change both values, and a server option lets moderators print the location of powered signs in the world, which is useful when debugging a redstone build. Powered Signs requires Cloth Config API and can use Mod Menu for its settings screen.

The mod is a server-side only add-on: players join without installing it, but the server must run it. Files exist for Fabric only, across 1.20.2, 1.20.3 and 1.20.4, with 1.0.3.1 for 1.20.4 as the latest file. The code is released under CC0 1.0 Universal, so it is open source and the source and issue tracker are public.