Noisebell

Noisebell is an Infrastructure project started by Jet in June of 2025 that informs the public of the open Status of Noisebridge.

History

SpaceJam

SpaceJam was a project started in May of 2022 by TJ which connected a Discord bot to a NodeMCU device. When a lever was flipped, the device would send out a message through a discord bot on our Discord server.

The last message from this bot was sent on 2025-05-04 and would not restart. With a lack of documentation, it was determined that a replacement with documentation, resilience, and more features was desired by the community.

Noisebell

A double knife switch made of copper and a base of wood placed on a wall full of posters and stickers. It is on the outside of the printer room near the front entrance

The double knife switch that triggers Noisebell

The project was picked up by Jet in June of 2025. With the intention of revitalizing access to our live status. It uses the same double knife switch as the original SpaceJam project. The knife switch connects with a Raspberry Pi Zero 2 W inside of the Printer Room via GPIO.

Development

The core of the project is noisebell on GitHub. This is the code base that executes on the Raspberry Pi itself. It is programmed in Rust and compiled to the aarch64-unknown-linux-gnu triple for the Raspberry Pi. The program is loaded through scp.

The Discord bot is hosted on the Raspberry Pi and sends messages out from it.

Project Thread

Further discussion of the project is done through on the Noisebridge Status Project.

A screenshot of the Noisebell Discord bot sending an "Open" message to the door-status channel

A screenshot of the Noisebell Discord bot sending an "Open" message to the door-status channel

Features

These are features currently available.

• Triggered by knife switch
• Asynchronous Switch Detection
• Software denouncing (10s)
• Discord bot messages with fancy embeds

Planned Features

These are features currently being worked on.

• Noisebell Status Website to display live open status on a webpage
• Public API to query that live open status
• Tunneling status through Tor
• Hosting a open status badge that is placed onto the Status page and linked on the sidebar

Potential Features

These are features that have been proposed but not planned to be added.

• Email Feed
• Home Automation for automatically turning on the lights for opening and closing
• SMS / Signal Feed (would require a cellular plan or phone number or Twillio)
• Better Physical Switch
• A case for Raspberry Pi

Images

Logos

We have a logo kindly drawn by Omelia and finished by Jet.

• A Circular Red logo with a hand-drawn bell in the center. In the top right there is the text "Noisebridge Hacker Space". The bottom left text says "Are We Open?". This is in the style of the Noisebridge Logo
  The Noisebell Logo PNG
• A Circular Red logo with a hand-drawn bell in the center. In the top right there is the text "Noisebridge Hacker Space". The bottom left text says "Are We Open?". This is in the style of the Noisebridge Logo
  The Noisebell Logo SVG

Switch

here are some example images of what the lever looks like in different positions.

• The knife switch for the Noisebell system in the closed position
  The knife switch for the Noisebell system in the closed position
• The knife switch for the Noisebell system in the open position
  The knife switch for the Noisebell system in the open position