{: style="width:300px; height: auto" , align=right }
This year's badge is the Spaceagon badge - a new and improved version of the Tildagon. It's a hexagon with a slot on each side that you can plug hexpansions into. A hexpansion is a 1 mm thick object with a hexagon shape on one edge (a six-sided polygon like this: ⬡). It can be made of card stock, so you can quickly add some cat ears to your badge, or it can be a printed circuit.
Unlike in previous years, Electromagnetic Field is trying to make a longer-lasting platform so any apps developed for it will work for multiple years.
!!! info "Need help? Ask here:"
- irc: __irc.libera.chat #emfcamp-badge__
- matrix: __[#badge:emfcamp.org](https://matrix.to/#/%23badge%3Aemfcamp.org)__
{: style="width:300px;height: auto;margin:auto;display:block;" }
- ESP32-S3 microcontroller with 2MB of PSRAM and 8MB of flash
- USB-C connector
- WiFi
- Six hexpansion connectors
- Round screen, six buttons, lots of colourful LEDs
- Power management, motion sensing
- An IMU (gyro + accelerometer)
- Bluetooth (BLE)
!!! info "The processor in the badge is the same as in 2022, and it will run MicroPython."
Hexpansions are accessories that plug into the badge's expansion connectors. Almost anything can be a hexpansion - the simplest hexpansion is just a piece of 1mm card cut into the right hexagonal shape. Here are some community examples: (1) { .annotate }
- If you want to add your hexpansions to this gallery, you can add them to the registry or add them to this issue or let us know on the IRC/Matrix! We'd love to feature all of your creations!
Keebdexspansion by sodoku, davedarko, and kliment
💰 BUY HERE
👀 VIEW FILES
OG Hexpansion by kliment
👀 VIEW FILES
Ducks hexpansion by Tiff
EMF ducks sixties style flying porcelain ducks
Link: Instagram
Goosespansion by Skyler Mansfield
👀 VIEW FILES
Bleepie paging hexpansion by Sam Machin
🎥 WATCH IT
👀 VIEW FILES
Paging hexpansion with RAIO2, RP2040, and bleeper modules. The badge detects the hexpansion on plug-in and can send and receive pages.
Interposer by The Untitled Goose
💰 BUY HERE
👀 VIEW FILES
Plotter hexpansion by Danny Walker
Plotter v0.3 hexpansion by Danny Walker
👀 VIEW VIDEO
SAO-to-Hexpansion, Hexpansion-to-SAO by grajohnt
Evil Henchman by Brian Corteil
Fig Pi hexpansion by Andy Piper
👀 VIEW VIDEO
Monsterspansion by Matthew
A canvas for people to be artistic. Draw a face — yours, an animal, some sort of monster, whatever — and the app lets you pick an eye colour for the neopixels.
HexyHexyMic by AlexJMcIntyre
👀 VIEW FILES
Adds a digital microphone to the badge with audio-reactive LED visualisations.
EEPROMagon by Matt W
Matrix hexpansion by Kristian Hentschel
👀 VIEW POST
WiFiSpansion by Bob
Screen hexpansion by mbooth
👀 VIEW FILES
Geiger counter hexpansion by dratini0
👀 VIEW FILES
Y adapter hexpansion by dratini0
👀 VIEW FILES
SK9822 recycling hexpansion by dratini0
👀 VIEW FILES
GPS (ublox) hexpansion by dratini0
👀 VIEW FILES
Hextension by Danny Walker
Protoboard Hexpansion by Jake Walker
💰 BUY HERE
GPS Hexpansion by The Machine Shop
💰 BUY HERE
👀 VIEW FILES
DECTspansion by jasonalexander-ja
👀 VIEW FILES
DECT module for the Tildagon badge. Requires a headphone (audio) connection. Design builds on the SC14CVM DECT devboard and the EMF hexpansion. Early prototype. License: CERN-OHL-S-2.0.
LED Filament hexpansion by John Thurmond
Hex-Drive and Hex-Dev by Team RobotMad
💰 BUY HERE
Emergency Hot Sauce hexpansion (chipotle flavor) by John Thurmond
Maker Space badge by Dan Nixon
👀 VIEW FILES
Ethernet hexpansion by Dan Nixon
👀 VIEW FILES
W5500-based Ethernet and PoE hexpansion using a WIZnet WIZPoE-P1 module.
Dual SD Card hexpansion by Dan Nixon
💰 BUY HERE
👀 VIEW FILES
Two microSD card slots on a shared SPI bus, with physical card detection.
Smol breakout hexpansion by Dan
👀 VIEW FILES
James Webb Space Telescope hexpansion by Ben C
Decorative hexpansion with 18 yellow hexagonal tiles arranged like the James Webb Space Telescope primary mirror.
Link: @bencc on morehammer.uk
Floppy disk "Flopagon" by Nathan
Dumont
👀 VIEW FILES
Floppy disk hexpansion with app and EEPROM support. See the software setup instructions on GitHub.
Croc-clip friendly I/O pads hexpansion by Nathan Dumont
Flipspansion by kliment
👀 VIEW FILES
Adapter to mount a hexpansion upside down. Use only in hexpansion slots that are not above a USB port (see project README).
As requested by DuncanT.
SD card hexpansion by DuncanT
KeebDeck Hexpansion Prototype by davedarko and sodoku
👀 VIEW FILES
Full-layout keyboard hexpansion using the solder.party KeebDeck, with RGB-backlit keys for typing in text inputs. Hardware by Dave; software by sodoku.
Software: tildagon-keebdexpansion
LEGspansion by davedarko
👀 VIEW FILES
Tildagon hexpansion PCB with three servo outputs. Firmware for the CH32V003 microcontroller is based on deshipu's mite-servo.
Microphone hexpansion by Lix
🎥 WATCH IT
Microphone hexpansion that captures audio samples and runs on-device visualisations from EEPROM.
Video: @GlitchEngine on Mastodon
DECTalk hexpansion by tomwyatt
Hexpansion with a DECtalk speech synthesizer
Headphone jack hexpansion by ArcaneNibble
👀 VIEW FILES
Hexpansion with ES8388 headphone codec and 3.5mm jack.
IR Tx/Rx hexpansion by ArcaneNibble
👀 VIEW FILES
38 kHz consumer infrared transmit and receive, with a Puya PY32 microcontroller.
TGSTL sound-to-light by Tony Goacher
👀 VIEW FILES
📖 READ BLOG
🎥 WATCH IT
TGSTL turns the Tildagon badge into a portable sound-to-light unit using the onboard LEDs, with multiple lighting effects and adjustable sensitivity. There is also a manually selectable RGB fader when there is no music.
Video: YouTube · Photo: Google Photos · Resources: GitHub
EMF Tildagon hexpansion template by Andy Piper
🖨️ PRINT ME
Templates for prototyping hexpansion boards for the Tildagon badge.
Edge-lit Millennium Falcon hexpansion by grajohnt
Hexatetrahedron by grajohnt
Audio output hexpansion by Andrea
👀 VIEW FILES
an I2S expansion for the EMF Camp Tildagon Badge
Radiolarian by webmariner
👀 VIEW FILES
A flexible digital radio hexpansion for the Tildagon.
Mustache hexpansion by GPPK
EMF sign hexpansion by GPPK
Max hexpansion by Catherine
40mm Googly Eye by John Dumont
Omni wheel by Nathan Dumont
👀 VIEW FILES
Little Monsters by Talula
7-Segment display by Iain Yarnall
🖨️ PRINT ME
Earplug case hexpansion by Iain Yarnall
🖨️ PRINT ME
Box hexpansion for keeping earplugs safe at the festival.
Multi-threading hexpansion by Iain Yarnall
A multi-threading hexpansion for EMF Camp.
Link: Iain Y
Sample tube holders hexpansion by NekoLilly
🖨️ PRINT ME
Hexpansion adapters for 5 ml sample tubes.
Mysterious QR Code by grajohnt
Spirit level by Chris
That Rabbit by Dan Nixon
👀 VIEW FILES
Le Carnard de Bleu by Dan Nixon
👀 VIEW FILES
Duck light by Frankie
Flame hexpansion by Frankie (Threadz 'n' Webz)
LED driver hexpansion by grajohnt
HypnoSnail hexpansion by grajohnt
🎥 WATCH IT
Video: watch this
🎥 WATCH IT
Duospander by grajohnt
Unpowered hexpansion duospander. These will be available at EMF Camp.
Link: grajohnt on chaos.socia
Fidget Spinner by Catherine
🖨️ PRINT ME
Breadbeard Hexpansion by Danny Walker
Hex-Drives by Team RobotMad
Gridfinity expansion hexpansion by Jack Fitton
🖨️ PRINT ME
GCHQ.NET markers by GCHQ.NET
Link: GCHQ
Megadrive controller by Matthew Wilkes
Too many LED hexpansion by Matthew Wilkes
Eye hexpansion by Alistair
🖨️ PRINT ME
Smile hexpansion by Alistair
🖨️ PRINT ME
Spirit level hexpansions by Andy Piper
🖨️ PRINT ME
Duck pond hexpansion by Andy Piper
Bat wing hexpansions by clayalien
🖨️ PRINT ME
Fairy wings by Charlotte Dumont
Not lego baseplate hexpansion by adie
🖨️ PRINT ME
Brickspansion (6x6) by Crumplump
🖨️ PRINT ME
Remix of Adie's design to allow 6 plates to be attached to the badge, without colliding.
Interlocking Brick Hexpansions by Floppy
🖨️ PRINT ME
Stud-compatible plates in several sizes, including versions with a USB-C cutout. (The 2x6 is slightly oversize for the spec if you want to go there.) FDM: print on their side so layer lines are not along the board edge. Hexpansion base template: @andypiper@3dprint.social.
Legospansion by pikesley
Lego stud hexpansion idea, prototyped with hot glue.
Display platform hexpansion by adie
🖨️ PRINT ME
Glowing pronoun hexpansions by Emily S
🖨️ PRINT ME
Pronoun hexpansions by Emily S
🖨️ PRINT ME
Keyboard by Bob
Frog prototype by Bob
Social battery by Bob
Many eyes by Bob
👀 VIEW FILES
👀 VIEW FILES
HUB75 hexpansion by dratini0
👀 VIEW FILES
Blank Hexpansion by Nathan Dumont
Corellian Freighter Hexpansion by Andy Piper
Cat ears and whiskers by catnerd
🖨️ PRINT ME
ECHQ hexpansion by ECHQ village
Pimoroni Breakout Garden I2C by James Sutton
Link: GitHub
Hexaspansaputer (hexpansion supercomputer) by o0mouse0o
A pride rainbow by o0mouse0o
6flags Hexpansion by Ambrosia
🖨️ PRINT ME
Simple Honk by The Untitled Goose
Pacman by The Untitled Goose
Doom Keycard by The Untitled Goose
Hexnotoad by The Untitled Goose
Hack the Planet by The Untitled Goose
Nyan cat hexpansion by The Untitled Goose
East Essex Hackspace Logo by Matt/EEH
💰 BUY HERE
Dalek by Matt/EEH
💰 BUY HERE
K9 by Matt/EEH
💰 BUY HERE
Tardis by Matt/EEH
💰 BUY HERE
Sonic Screwdriver by Matt/EEH
💰 BUY HERE
Hexpansion Extender by Matt
💰 BUY HERE
Henchmen by Brian Corteil
Googly Eye Alien by Brian Corteil
Lamp hexpansion by Tilde
Breakout hexpansion by Tilde
Caffeine Jitters by Danny Walker
👀 VIEW FILES
Petals by lornajane
👀 VIEW FILES
Petals on a badge
Laser Tag Shieldallion by kianryan
Software link may be available later...
Cat hexpansion
Brainslug by Paul Beech
Link: Twitter
Polybius Biotech Employee Authenticator by Graham Sutherland (Polybius Biotech)
DESCRIPTION REDACTED BY POLYBIUS BIOTECH SECURITY
Helping HexpHANDsion by Yvan
🖨️ PRINT ME
LEDspansion by eastabrooka
Bodgeham Smart Pass by Joe Nash, (Bodgeham Electronics Consulting Co-Operative (BECCO))
Batspansion by Joe Nash
Cat ear hexpansion by Rox
Purple PCB cat ear hexpansions with multicoloured LEDs.
Link: rox
Moderately Sized Red Button by Danny Walker
Hex-spide-sion by Danny Walker
Donglegon by Kristian
Orrery hexpansion by Danny Walker
Hexpaaaansion by kliment
Flexible PCB hexpansion with an extended arm, bringing a connector further away from the badge.
Badgebot by Team RobotMad
💰 BUY HERE
🎥 WATCH IT
HEX-DRIVE-V2: robot driver hexpansion with 2 motors, 2 servos, TOF distance sensor, and colour sensor.
Video: The Making of BadgeBot 2026
Space Unicorn hexpansion by Brian C
LED/Buzzer/EEPROM hexpansion by Ktbsupremo
First PCB design featuring 5 LEDs, 2 piezo electric buzzers and an EEPROM. The EEPROM holds code to auto-load when plugged into the Tildagon.
Link: ktbsupremo
ExtSpansion by Bob
Grove I/O Hexpansion by Andrew Lindsay
👀 VIEW FILES
A hexpansion to enable the many Seeed Studio Grove compatible boards to be used with the badge. Example apps included and more to be added.
!!! tip "Add your hexpansion! We'd love to feature all of your creations!"
If you want to add your hexpansions to this gallery, you can [add them to the registry](https://github.com/hughrawlinson/hexpansion-registry) or [add them to this issue](https://github.com/emfcamp/badge-2024-documentation/issues/149) or let us know on the IRC/Matrix! We'll do the rest!
For more information, see:
Instead of redesigning badges from scratch every two years, we're building:
- a reusable platform
- a base part which will remain compatible over multiple years. The base contains power management, communications, USB, expansion connectors, storage, motion sensing, and battery charging into this board
- an interchangeable part that is specific to the event
We want to let you make physical things that interact with the badge more easily, in the knowledge that those things are going to continue working with future event badges. In previous years, expandability has always been an afterthought - people still managed to do amazing things with their badges, but it was a lot of effort.
Additionally, we're tired of building the same thing over and over just to make it new and special. We're tired of putting ever-increasing stacks of e-waste into the drawers of the hacking world. We're especially tired of people not being able to meaningfully build things for the badge before the event, and none of those things working by the next event.
The Tildagon will not only let us waste fewer materials, but it also provides us and attendees with a stable base to build on and invest in.
For us, the stable infrastructure means we do not need to rewrite software and drivers for every event. Instead we can focus our efforts on the smaller event-specific part.
Investing in the Tildagon for multiple years also means we've put more effort and better parts than usual into the base board. We put all the expensive and hard-to-get-right functionality on the base part. In future events, we will reuse this base part and maintain compatibility in software and hardware for existing hexpansions.
The most energy-intensive part of each badge is the battery, so we've made it compatible with the batteries from the 2016 and 2018 badges.
Instead of having a lanyard, we are making the USB cable itself be the lanyard for this badge - cables in different lengths are available for people of different sizes, and it can also be used for badge-to-badge and badge-to-computer communication.