Add-on dossier
A linkable lifecycle record for hardware expansions, app ecosystems, firmware upgrades, cases, radio parts, and post-event badge experiments.
The v0j4 project describes the badge as a PIC24 implementation of a 4-bit virtual machine with small instructions, visible registers and stack state, GPIO, and program slots.
Badge context
Wikimedia Commons source page for Mitch Altman's original documentary photo, including CC BY-SA 2.0 license, FlickrreviewR confirmation, attribution, and file metadata.
Hackaday article establishing the original Supercon Voja4/retrocomputer badge context that the Berlin badge reused and re-skinned.
Hackaday preview announcing the Berlin badge as a re-skinned, hardware-tweaked, Supercon-compatible Voja Antonic computer trainer and scheduling the badge-hacking ceremony.
Official Hackaday.io event page for Berlin, Germany, March 25-26, 2023, at MotionLab.Berlin.
Hackaday.io v0j4 notes describing the 4-bit architecture, instruction and memory model, LED raster display, GPIO, serial path, SAO port, and PIC24 implementation.
Source trail
Primary Hackaday source for the Berlin-reskinned Voja Antonic badge, Supercon compatibility, hardware-tweak caveat, pre-event hacking pointers, and Saturday-night badge-hacking ceremony.
Lineage source for the original down-to-the-metal retrocomputer badge framing and planned Gerber, emulator, and PIC code release context.
Primary event source for Berlin, Germany, March 25-26, 2023, MotionLab.Berlin, and event identity.
Project source for 4-bit datapath, 12-bit instruction words and addresses, memory layout, registers, GPIO, 16x8 LED raster screen, serial mention, SAO port, and PIC24 implementation.
Image-provenance source for the original Mitch Altman conference photo, badge identification, CC BY-SA 2.0 license, Flickr source, and FlickreviewR confirmation.