Hacker Con Badges

Overglade 2026 · Singapore · 2026

Overglade 2026 Zero-Power NFC E-Ink Badge

Maker-documented RP2040 e-ink/NFC game-jam badge

Kai Pereira's public archive identifies these as Overglade hackathon badges designed for the completed Singapore game jam. The device has an RP2040, passive NFC, an onboard e-ink driver, and an exposed ticket-shaped PCB with public KiCad and MicroPython source trees. Official Hack Club pages establish the event, but not a badge entitlement or all-recipient allocation.

Overglade Hack Club Singapore Game Jam Hackathon RP2040 NFC E-Ink MicroPython USB-C KiCad Hardware Badge Southeast Asia Asia
EventOverglade 2026
SeriesOverglade
LocationSingapore
CountrySingapore

People

Authors & Credits

art assistance

froppii

Kai Pereira's public README credits froppii for art help.

Source

art assistance

joysudo

Kai Pereira's public README credits joysudo for art help.

Source

art assistance

mynameisashllee

Kai Pereira's public README credits mynameisashllee for art help.

Source

badge designer and public archive author

Kai Pereira

The public README and design journal identify Kai Pereira with the Overglade badge design and source archive. This credit does not establish sole manufacture, organizer issuance, all artwork ownership, or image-reuse authority.

Source

event organizer

Hack Club

The official Overglade page identifies Hack Club as the organizer of the Singapore game jam. This does not assign badge design, manufacture, allocation, or media-reuse rights.

Source

firmware assistance

mpkendall

Kai Pereira's public README credits mpkendall for firmware help.

Source

firmware assistance

nimitvijayvargee

Kai Pereira's public README credits nimitvijayvargee for firmware help.

Source

lead organizer

Tongyu

The official Overglade page names Tongyu as lead organizer. This credit is limited to source-named event organization.

Source

Why It Mattered

It extends Asian current-event coverage with a well-documented hackathon physical artifact that is both event-specific and source-backed. The entry makes the meaningful distinction between a maker-published production/design archive and an organizer-confirmed universal attendee credential.

Hardware

Kai Pereira's public README and design journal document an RP2040 with 4 MB flash, a passive NFC tag and antenna, e-ink display driver, USB-C, boot/reset controls, roughly 20 GPIO breakout pins, a two-layer ticket-shaped PCB, exposed copper art, and native KiCad schematic, PCB, project, and production files. The journal describes e-ink SPI drive and a passive NFC energy-harvesting surface alongside I2C/control wiring intended for optional active NFC; it does not identify a final attendee-unit revision, e-ink panel variant, assembled BOM, output, radio configuration, or universal final population.

Software & Apps

The public firmware tree contains MicroPython-oriented `main.py`, `einkdriver.py`, configuration, and bitmap assets; the README describes a Pi Pico MicroPython bootloader and personalizable configuration. This source shows a public firmware/design archive, but no explicit root repository licence, release, signed event image, provisioning record, final participant configuration, or proof of every shipped app/image.

Lore

Overglade was a Hack Club high-school game jam framed as a game jam within a game. The badge's ticket shape echoes the event's qualification/ticket metaphor, and the maker's journal credits a sticker idea by Kai Ling. The public material shows a real event-specific creative artifact, but does not establish the attendee badge's access-control function, interaction rules, personal-data practice, or every recipient's unit.

Source-backed hardware metadata

Technical Profile

Structured technical signals seeded from public badge documentation, repositories, schematics, firmware notes, or event evidence. These fields are designed for filtering, API use, repair planning, preservation, and future Companion Gear matching.

Artifact type

  • Electronic badge documented

    Kai Pereira's public README identifies these as electronic Overglade hackathon badges for the Singapore game jam.

    Signal source

MCU / compute

  • RP2040 documented

    The public README documents an RP2040 controller with 4 MB flash.

    Signal source

Radio / wireless

  • NFC documented

    The public README documents passive NFC on the badge; the journal keeps optional active-NFC behavior distinct from the documented passive surface.

    Signal source

Connectors

  • USB-C documented

    Kai Pereira's design journal documents USB-C power and data in the source design.

    Signal source

Display / visual output

  • E-ink documented

    The public README documents an onboard e-ink driver for the badge.

    Signal source

Firmware

  • MicroPython documented

    The public README describes a Pi Pico MicroPython bootloader, and the repository includes MicroPython-oriented firmware files.

    Signal source

Repair, preservation, and legal lab context

Companion Gear

Parts, tools, and supplies that match this badge's documented hardware, protocols, or preservation needs. These are category-level recommendations, not compatibility guarantees.

Lab401 exact

NFC / RFID Test Cards

Cards and tags for legal lab use, owned test cards, documentation, and protocol exploration.

Why this matches

This badge has documented NFC/RFID or card-protocol signals. Matched technical signals: NFC.

Matched evidence

For legal lab use, owned test cards, documentation, and protocol exploration.

Open vendor search

Vendor link · selected for technical relevance

Seeed Studio exact

Replacement Displays

Display modules and related parts for repair and preservation planning.

Why this matches

This badge has a documented display signal. Matched technical signals: E-ink.

Matched evidence

Useful for preservation, repair planning, and careful display handling.

Open vendor search

Vendor link · selected for technical relevance

Lab401 likely

NFC Field Detector Cards

Passive tools for non-invasive NFC field presence checks and documentation.

Why this matches

Field detector cards can help document NFC field behavior without modifying the badge. Matched technical signals: NFC.

Matched evidence

For non-invasive lab observation and documentation of owned or authorized devices.

Open vendor search

Vendor link · selected for technical relevance

SparkFun likely

Display Headers and Connectors

Headers, sockets, and connector supplies for display repair or replacement work.

Why this matches

Display headers and connectors are useful for repair and preservation planning. Matched technical signals: E-ink.

Matched evidence

Useful for careful repair or replacement of small display modules.

Open vendor search

Vendor link · selected for technical relevance

Seeed Studio likely

JTAG / SWD Debuggers

Debug probes for ARM/RISC-V badge development, recovery, and documentation.

Why this matches

Debug probes can support authorized recovery, firmware work, and documentation for microcontroller badges. Matched technical signals: RP2040.

Matched evidence

Use only with hardware you own or are authorized to debug, repair, or document.

Open vendor search

Vendor link · selected for technical relevance

Lifecycle

Add-ons & Upgrades

badge display maker-documented

E-ink identity display

The public README identifies an onboard e-ink driver and describes the badge as visually displaying a configured name. It does not establish the exact final panel, update behavior, display contents, power state, accessibility behavior, or participant configuration used at the event.

Compatibility: Overglade 2026 Zero-Power NFC E-Ink Badge

Source
badge interaction surface maker-documented

Passive NFC identity surface

The design journal describes a passive NFC tag and antenna receiving harvested energy, alongside I2C/control wiring intended for possible active-NFC customization. This preserves the layered NFC design concept without asserting a final attendee-unit NFC IC, protocol, provisioned data, reader behavior, access-control role, enabled active mode, deployment, safety certification, or privacy practice.

Compatibility: Overglade 2026 Zero-Power NFC E-Ink Badge

Source
source archive public source; licence unverified

Public MicroPython firmware and KiCad archive

The public repository includes native KiCad schematic, PCB, project, and production-data files plus MicroPython-oriented configuration, main application, e-ink driver, and bitmap assets. The archive does not expose an explicit root repository licence, release, or proof that it matches every produced or participant-configured unit.

Compatibility: Overglade 2026 Zero-Power NFC E-Ink Badge

Source

Operational history

Issues & Camp Impact

event allocation and physical-production boundary note

Hack Club's official pages establish a completed Singapore game jam, while Kai Pereira's maker archive explicitly identifies Overglade hackathon badges. Neither reviewed official page publishes a ticket-to-badge entitlement, recipient list, allocation rule, quantity, pickup/delivery record, organizer-issued credential role, manufacturing record, or final physical-production ledger.

The catalogue records a real event-specific maker artifact without treating it as a universal attendee benefit, official access credential, organizer-issued device, or complete production account.

Confidence
official event sources and maker archive
Status
event completed; badge allocation unverified
Timeframe
January-August 2026 source pass
Source note
Overglade official page, Hack Club Horizons Arcana retrospective, and Kai Pereira's Overglade-Badges archive.
missing rights-cleared image note

No Overglade 2026 Zero-Power NFC E-Ink Badge image is published because the current public source trail has not been paired with a reusable original badge or artifact photo or official upstream raster render with source URL, license or permission basis, attribution, and processing notes.

The Singapore record remains source-backed and image-free rather than copying source-page media, documentation screenshots, event photos, social media, placeholders, or generated approximations.

Confidence
local project policy
Status
needs licensed original replacement
Timeframe
current catalogue build
Source note
badge.gallery image policy and Hack Club's official Overglade and Horizons Arcana pages plus Kai Pereira's public badge repository and design journal.
source-license and media-provenance boundary note

The reviewed public repository root did not expose an explicit licence file, and official/event/repository media did not pair a selected factual badge image with an image-specific reusable licence or explicit permission basis, attribution, source URL, and processing provenance. A public source archive is not treated as a blanket licence for code, design, branding, or imagery.

The record cites public design material as evidence but remains image-free and does not republish event photos, repository previews, screenshots, artwork, or approximate/generated imagery.

Confidence
repository-root and image-policy review
Status
public source archive; explicit licence and reusable media basis unrecovered
Timeframe
current catalogue build
Source note
KaiPereira/Overglade-Badges repository root, official Hack Club pages, and badge.gallery image policy.
zero-power, hardware, and firmware parity boundary note

The maker's README and journal document a zero-power concept, RP2040, passive NFC, e-ink driver, USB-C, GPIO breakouts, and source trees, but do not identify a final attendee-unit revision, panel variant, assembled BOM, physical output, radio configuration, power behavior, active-NFC implementation, firmware image/release, provisioning record, participant configuration, or all-unit parity.

Hardware and software descriptions remain tied to the public design archive rather than promoted to a fully known, uniform, deployed event build.

Confidence
maker README and design journal
Status
source design documented; final event-unit parity unverified
Timeframe
current public archive
Source note
Overglade-Badges README, JOURNAL.md, PCB tree, and firmware tree.

Resources

Hack Club Horizons Arcana retrospective official event retrospective · Current official Hack Club page identifying Overglade as a four-day Singapore game jam for teens that took place in January 2026; it establishes completed-event context but not badge eligibility or technical details. Overglade official page official event page · Retained official Hack Club Overglade page for the January 29-February 2 Singapore physical high-school game-jam framing. It does not define badge allocation, specifications, delivery, or media reuse rights. Overglade-Badges PCB tree native KiCad source tree · Public PCB directory containing native KiCad schematic, PCB, project, and production-data files; it is technical evidence, not a confirmed final attendee-unit or image-reuse basis. Overglade-Badges README maker documentation · Primary maker documentation identifying zero-power Overglade hackathon badges, RP2040, 4 MB flash, passive NFC, e-ink driver, breakout pins, ticket-shaped PCB, and MicroPython-oriented configuration. Overglade-Badges design journal maker design journal · Kai Pereira's journal records USB-C, RP2040, e-ink SPI, passive NFC energy harvesting, intended active-NFC wiring, ticket geometry, exposed copper art, and KiCad production-file context. Overglade-Badges firmware tree MicroPython firmware tree · Public firmware directory containing configuration, e-ink driver, main application, and bitmap assets; it does not establish a signed or participant-wide final event image. Overglade-Badges repository public maker source archive · Kai Pereira's public project archive for Overglade hackathon badges, including its source-tree structure. The reviewed repository root did not expose an explicit licence file, so it is evidence rather than a blanket reuse grant.

Sources

Hack Club: Overglade Retrieved 2026-05-15 · Primary official event source for the January 29-February 2 Singapore physical high-school game-jam framing and Hack Club organizer context. It does not state that a badge was included or who received one. Hack Club: Horizons Arcana Retrieved 2026-05-15 · Current official Hack Club retrospective identifying Overglade as a January 2026 Singapore game jam that took place. It corroborates the completed event but does not document badge allocation, hardware, firmware, or media rights. Kai Pereira / GitHub: KaiPereira/Overglade-Badges Retrieved 2026-05-15 · Primary maker-published source archive for an event-specific Overglade badge design and its PCB and firmware directories. The reviewed root did not expose an explicit repository licence or a reusable image basis. Kai Pereira / GitHub: Overglade-Badges README Retrieved 2026-05-15 · Primary badge-design source identifying zero-power hackathon badges for Overglade in Singapore and documenting the RP2040, 4 MB flash, passive NFC, e-ink driver, 20 GPIO breakouts, two-layer PCB, and MicroPython configuration framing. Kai Pereira / GitHub: Overglade PCB's design journal Retrieved 2026-05-15 · Primary maker journal for USB-C, RP2040, boot/reset, e-ink SPI, passive NFC energy-harvesting, intended active-NFC control wiring, ticket-shaped PCB, exposed copper art, and native KiCad production-file context.