Hackaday Europe
The March 25-26, 2023 Berlin Hackaday conference whose official preview offered attendees a Berlin-reskinned Voja4 down-to-the-metal computer trainer badge and a Saturday-night badge-hacking ceremony.
MotionLab.Berlin · Germany · 2023
Hackaday Berlin 2023 gave European attendees a Berlin-reskinned Voja Antonic Voja4 badge: a compatible revision of the 2022 Supercon down-to-the-metal computer trainer and retrocomputer, with public event sources tying it to the March 25-26 MotionLab.Berlin gathering and Saturday badge-hacking ceremony.
Lifecycle
Hackaday announced a Saturday-night badge-hacking ceremony for attendees to show what they made with the Berlin Voja4 badge.
The architecture notes list four output bits, four input bits, an external connector, serial mention, and an SAO port as the public expansion surface.
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.
Operational history
Software and hardware claims stay limited to Hackaday's compatibility statement, the v0j4 architecture notes, and the original Supercon badge context.
The catalogue records the Berlin artifact as an event-specific revision while avoiding unsupported claims about exact PCB changes until a Berlin-specific hardware archive is recovered.
The image is still usable because the license, attribution, Flickr source, and review status are explicit; the typo is not treated as technical evidence beyond the intended machine-code description.
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