
Modrinth · Minecraft mod
Redstone Pen
Adds a pen to draw Redstone selectively and optimized, as well as different signal repeating relays, and a Redstone logic controller.
Quick answer
Which Redstone Pen release should I use?
Redstone Pen 1.11.43 targets 1.21, 1.21.1 with Fabric. Installation on the client is optional. Installation on the dedicated server is optional. No extra mods listed for this file.
Where it goes
Is Redstone Pen required on the client, server, or both?
Installation on the client is optional. Installation on the dedicated server is optional.
The source marks this as usable on both the client and server.
What else does Redstone Pen 1.11.43 need?
1.11.43. Change the file and its required mods may change too.
This file does not list any required mods. Do not add a library just because a different file uses it.
This file does not list any required or optional mods.
Before you install it
Add Redstone Pen without breaking your instance.
Built for Redstone Pen 1.11.43. Pick another file and the loader, install side or required mods may change.
- 01
Stick to this file
Use 1.11.43. It targets 1.21, 1.21.1 with Fabric; another release may have different loader, side or dependency requirements.
- 02
Bring the mods it needs
This file does not list any required mods. Do not add a library just because a different file uses it.
- 03
Put it on the correct side
Installation on the client is optional. Installation on the dedicated server is optional.
- 04
Pick the file you checked
Use the “Get this file” button beside 1.11.43. It opens that exact file at the source.
About this project
What does Redstone Pen add?
Redstone Pen
A Minecraft (Java Edition) mod adding a pen to draw
Redstone tracks more accurately. Inspired by the Redstone Paste mod.
Description
Adds "one pen to draw them all" - and helps with simpler Redstone handling.

Redstone Quill and Pen Items
Craft and use them to draw or remove thin Redstone Tracks. Multiple independent tracks through one block
space are possible. There are two versions:
The Redstone Quill uses Redstone dust directly from your inventory.
The Redstone Pen stores Redstone in the item, and can be refilled in the crafting grid with Redstone
Dust or Redstone Blocks.Both allow to inspect the current signal of a block, track, wire, or device by sneaking while you hold
the pen/quill and look at the block of interest.Both do not destroy blocks when left-clicking, except blocks with no hardness (like grass, repeaters,
or comparators).
Block Signal Connectors
Especially for compact wiring it is desirable to decide weather a Track shall power the block underneath
or not. Therefore the Pen-Tracks do normally NOT connect to the block they are drawn on. To change this,
simply add an explicit connector by clicking the centre of a Track with a Pen (see the round blob in the
image). Tracks do intentionally not pass indirect power (through blocks) to other Tracks, so you can power
said blocks from independent routes without interferences:

Redstone Relays
Relays are like redstone powered "solenoids" that move builtin Redstone Torches back or forth, so that they
re-power ("re-lay") Redstone signals to 15. They can be placed on solid faces in all directions. Output is
only to the front, inputs are at all sides except from above. The internal mechanics ("relay types") define
what happens at the output side when the input signals change (relay, invert, flip etc). Relays also detect
indirect power from blocks they are placed on, and can therfore be used to pass Track signals through
blocks.
Redstone Relay: Straight forward Input-On-Output-On relay. Different from a Repeater it has no
switch-on delay, but instead a switch-off delay of one tick (redstone-tick=100ms).Inverted Redstone Relay: Input-On-Output-Off relay. Switch-on delay 1 tick, no off delay.
Bi-Stable Redstone Relay: Flips when detecting a off-to-on transition at the input ("rising edge";
input off->on --> output changes).Pulse Redstone Relay: Emits a short pulse at the output side when detecting a off-to-on transition
at the input ("rising edge").

- Bridging Relay: A Redstone Relay allowing to cross tracks. It forwards power back to front like a
normal Relay, and has an additional independent wire left-to-right.

Redstone Logic Control
Simplified PLC-like, text code based signal controller. Details
are in a in the documentation here


Community and References
Discord: As a platform for community exchange, the Redstone Pen has a channel on the Modded Redstone Discord server (ty Oka/Aerotactics for providing and moderating this).
Project description from Modrinth.
Pick your setup
Redstone Pen by Minecraft version and loader
Choose the version and loader you play, then open the matching release.
1.21
2 loader builds1.20.6
1 loader build1.20.5-pre1
1 loader build1.20.5
1 loader build1.20.4
3 loader builds1.20.3
1 loader build1.20.2
1 loader build1.20.1
3 loader builds1.19.3
2 loader builds1.19.2
2 loader builds1.18.2
1 loader buildShowing the newest 12 of 13 game versions. Older files are in the list below.
Check the dependencies, then try the file in a copied instance before changing a world you care about.
Recent files
Redstone Pen versions and loaders
1.11.43
redstonepen-1.21.1-fabric-1.11.43.jar
25 Jan 2025
1.11.42
redstonepen-1.21-neoforge-1.11.42.jar
19 Jan 2025
1.11.42
redstonepen-1.21.1-fabric-1.11.42.jar
17 Jan 2025
1.11.41
redstonepen-1.21-neoforge-1.11.41.jar
28 Sept 2024
1.11.39
redstonepen-1.21-neoforge-1.11.39.jar
15 Sept 2024
1.11.41
redstonepen-1.21-fabric-1.11.41.jar
15 Sept 2024
1.11.40
redstonepen-1.21-fabric-1.11.40.jar
21 Aug 2024
1.11.39
redstonepen-1.21-fabric-1.11.39.jar
16 Aug 2024
1.11.38
redstonepen-1.21-neoforge-1.11.38.jar
2 Aug 2024
1.11.38
redstonepen-1.21-fabric-1.11.38.jar
2 Aug 2024
1.11.37
redstonepen-1.21-fabric-1.11.37.jar
1 Aug 2024
1.8.37
redstonepen-1.20.4-neoforge-1.8.37.jar
31 Jul 2024
Looking for an older file? The official Modrinth project page is in Resources.