Easterhegg 2010 eHaserl
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.
Easterhegg
Easterhegg 2010
The Munich Easterhegg edition whose eHaserl surprise badge was documented through assembly instructions, flashing notes, alternative software, and a public badge talk.
Munich · Germany · 2010
Lifecycle
Add-ons & Upgrades
Easterhegg 2010 eHaserl
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.
Easterhegg 2010 eHaserl
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.
Easterhegg 2010 eHaserl
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.
Operational history
Issues & Camp Impact
Easterhegg 2010 eHaserl
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.
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.
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.
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.
Resources
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.
EH2010 badge wiki
official wiki · Assembly, flashing, errata, alternative software, and parts notes for the eHaserl badge.
eHaserl schematic
schematic · Schematic link from the official badge assembly page.
EH2010 badge source tree
source · SVN checkout path used by the wiki's flashing example.
Lötworkshop-Vortrag
talk · media.ccc.de talk described as the surprise talk for the Easterhegg surprise badge.
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.