BornHack 2020 · Denmark · 2020

BornHack 2020 Badge

CircuitPython LED-matrix IR badge

A SAMD21 CircuitPython badge with a charlieplexed LED matrix, IR badge-to-badge communication, navigation buttons, SAO header, and exposed pads.

EventBornHack 2020

SeriesBornHack

LocationFunen

CountryDenmark

People

Attribution Gap

No public individual author, designer, firmware, or team credits have been seeded for this badge yet. Add named credits only when a primary badge-team page, repository, talk, or other source identifies the people or team behind the work.

Why It Mattered

BornHack 2020 lowered the software barrier: attach USB, edit code.py, save, and the badge restarts with your change.

Hardware

SAMD21G18A Cortex-M0+, GD25Q32C 4 MB SPI flash, 9x32 pixel LED matrix driven by IS31FL3731 LED controllers, IR transmitter/receiver, four navigation/game buttons, reset, AA/USB power, SAO footprint, and exposed IO pads.

Software & Apps

Adafruit CircuitPython workflow with an editable code.py file on USB mass storage, examples, and hardware design files in the public repository.

Lore

The default first hack was changing the scrolling text, a small but ergonomic badge-hacking on-ramp.

Lifecycle

Add-ons & Upgrades

hardware expansion historical

SAO and exposed IO pads

The unpopulated SAO v1.69bis header and rear IO pads made the LED-matrix badge useful for soldered extensions.

Compatibility: BornHack 2020 Badge

Source

Operational history

Issues & Camp Impact

missing rights-cleared image note

No BornHack 2020 badge image is published because the current source trail has not been paired with a reusable original badge photo or official upstream raster render with source URL, license or permission basis, attribution, and processing notes.

The record remains source-backed and image-free rather than copying repository diagrams, documentation screenshots, event media, attendee photos, placeholders, or generated approximations.

Confidence: local project policy plus repository recheck
Status: needs licensed original replacement
Timeframe: current catalogue build
Source note: badge.gallery image policy, BornHack badge2020 repository, and May 21 2026 GitHub API recheck.

Resources

BornHack badge2020 source · Hardware branch README covering SAMD21, CircuitPython, LED matrix, IR, buttons, SAO, and exposed pads.

Sources

BornHack GitHub: BornHack badge2020 Retrieved 2026-05-15 · Hardware branch README covering SAMD21, CircuitPython, LED matrix, IR, buttons, SAO, and exposed pads.