matze
DokuWiki metadata lists matze as page author for the badge assembly page.
SourceEasterhegg 2010 · Germany · 2010
Easterhegg 2010 eHaserl
ATmega88 USB-bootloader rabbit badge
A source-backed record for the eHaserl, the Easterhegg 2010 surprise badge from the Munich Chaos Computer Club, with official assembly notes, flashing instructions, errata, and a badge talk.
EventEasterhegg 2010
SeriesEasterhegg
LocationMunich
CountryGermany
People
Authors & Credits
Martin
DokuWiki metadata lists Martin as contributor for the badge assembly page.
Sourceschneider
DokuWiki metadata lists schneider as contributor; the page links multiple badge images and board files under schneider-hosted paths.
SourceWhy It Mattered
eHaserl is an early CCC-family badge bridge between local Easterhegg craft culture and the later camp-badge lineage; the current muCCC badge-history note explicitly places it before r0ket and flow3r.
Hardware
The EH2010 badge wiki documents LCD connector placement, ATmega88 socketing, IR receiver and IR LED handling, USB contact soldering, jumpers, LEDs, quartz, voltage regulator, light sensor behavior, speaker/loudspeaker context, and a parts-sourcing spreadsheet.
Software & Apps
The badge shipped with an ATmega88 USB bootloader, could be programmed over a normal USB port with avrdude, avr-libc, gcc-avr, and the public SVN tree, and had documented alternative software links for Tetris Sound Track, TV-Bunny, and Ethersex.
Lore
media.ccc.de frames the Easterhegg talk as the surprise talk for the surprise badge: from Haserl to eHaserl. The official wiki also preserves real workshop caveats such as jumper placement, short-circuit risk, sold-out upgrade kits, and compile errata.
Lifecycle
Add-ons & Upgrades
alternative software
historical
Tetris, TV-Bunny, and Ethersex software
The wiki preserves alternative software links for Tetris Sound Track, TV-Bunny, and Ethersex, showing the badge as a small AVR software target beyond the default firmware.
Source
firmware workflow
historical
USB bootloader programming path
The ATmega88 was already flashed with a USB bootloader so attendees could program it over a normal USB port with avr-gcc, avrdude, and the public SVN checkout.
Source
workshop/lifecycle
historical
EH2010 soldering workshop
The official wiki walks attendees through solder-bridge removal, LCD connector placement, ATmega88 socketing, IR parts, USB contact soldering, jumpers, and final display insertion.
SourceOperational history
Issues & Camp Impact
startup jumper short-circuit warning
major
The official instructions warn attendees to move the two jumpers under the LEDs to the pins next to the speaker before switching on, otherwise AVR pins could be shorted.
The dossier preserves the kind of practical hardware caveat that matters to badge hackers: assembly order and first-power-on state could damage the device.
- Confidence
- official wiki
- Status
- historical
- Timeframe
- first power-on
- Source note
- EH2010 badge wiki Inbetriebnahme section.
missing rights-cleared image
note
No Easterhegg 2010 eHaserl 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 Germany 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 Easterhegg 2010 source trail.
source-depth and link-rot caveat
note
The wiki preserves strong assembly and flashing instructions, but several referenced media and source URLs are old brezn/blinkenlichts-era links that need archival review before adding a cleared image or claiming a complete BOM.
The current record keeps sourceable details while marking original-photo, full-BOM, and source-history recovery as future work.
- Confidence
- official wiki and current mirrors
- Status
- needs archive review
- Timeframe
- post-event archive
- Source note
- EH2010 badge wiki, source checkout path, and image links.
workshop supply caveat
note
The wiki says the name-badge upgrade kit was already sold out and asks for a parts and supplier list, while also mentioning battery exchanges for people who did not receive the larger battery.
This records the logistical side of early badge workshops: kits, batteries, and replacement parts shaped the attendee experience.
- Confidence
- official wiki
- Status
- historical
- Timeframe
- during event
- Source note
- EH2010 badge wiki Teileliste and Inbetriebnahme sections.
Resources
EH2010 badge source tree
source · SVN checkout path used by the wiki's flashing example.
EH2010 badge wiki
official wiki · Assembly, flashing, errata, alternative software, and parts notes for the eHaserl badge.
Lötworkshop-Vortrag
talk · media.ccc.de talk described as the surprise talk for the Easterhegg surprise badge.
eHaserl schematic
schematic · Schematic link from the official badge assembly page.
eHaserl writeup
creator writeup · Simon Schoar's project index identifies eHaserl as the Easterhegg 2010 conference badge.
muCCC badge frames
history note · muCCC badge-history note placing eHaserl before r0ket and later camp badges.
Sources
EH2010 wiki: Bestueckung
Retrieved 2026-05-15 · Primary source for assembly order, ATmega88, USB bootloader, flashing command flow, alternative software, errata, and safety notes.
Simon Schoar: ehaserl
Retrieved 2026-05-15 · Project source identifying eHaserl as the Easterhegg 2010 conference badge organized by the Munich CCC.
media.ccc.de: Lötworkshop-Vortrag
Retrieved 2026-05-15 · Talk source for the surprise-badge framing and eHaserl lore.
muCCC: Badge Frames
Retrieved 2026-05-15 · Current muCCC history note tying eHaserl into the club's camp-badge lineage.
muCCC / brezn.muc.ccc.de: EH2010 badge source tree
Retrieved 2026-05-15 · Software source checkout path documented by the EH2010 badge wiki.