Add-on dossier
Passive NFC identity surface
A linkable lifecycle record for hardware expansions, app ecosystems, firmware upgrades, cases, radio parts, and post-event badge experiments.
Back to add-ons index
badge interaction 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.
- Badge
- Overglade 2026 Zero-Power NFC E-Ink Badge
- Type
- badge interaction surface
- Status
- maker-documented
- Compatibility
- Overglade 2026 Zero-Power NFC E-Ink Badge
- Source
- https://github.com/KaiPereira/Overglade-Badges/blob/master/JOURNAL.md
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.
Badge: Overglade 2026 Zero-Power NFC E-Ink Badge
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.
Badge: Overglade 2026 Zero-Power NFC E-Ink Badge
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.
Badge: Overglade 2026 Zero-Power NFC E-Ink Badge
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.
Badge: Overglade 2026 Zero-Power NFC E-Ink Badge
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.
Badge: Overglade 2026 Zero-Power NFC E-Ink Badge
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.
Badge: Overglade 2026 Zero-Power NFC E-Ink Badge
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.
Badge: Overglade 2026 Zero-Power NFC E-Ink Badge
Hack Club · 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.
Badge: Overglade 2026 Zero-Power NFC E-Ink Badge
Hack Club · 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.
Badge: Overglade 2026 Zero-Power NFC E-Ink Badge
Kai Pereira / GitHub · 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.
Badge: Overglade 2026 Zero-Power NFC E-Ink Badge
Kai Pereira / GitHub · 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.
Badge: Overglade 2026 Zero-Power NFC E-Ink Badge
Kai Pereira / GitHub · 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.
Badge: Overglade 2026 Zero-Power NFC E-Ink Badge