# hoglet67/RGBtoHDMI

Bare-metal Raspberry Pi project that provides pixel-perfect sampling of Retro Computer RGB/YUV video and conversion to HDMI

Repository: https://github.com/hoglet67/RGBtoHDMI
Canonical: https://ross.abutalabs.com/products/rgbtohdmi
Language: C
License: GPL-3.0
License Family: copyleft
Last push: 2026-05-18T16:57:16+00:00

## Health v2 (maintenance only)
Score: 60/100 (v2, computed 2026-09-03T02:20:16.233290+00:00)
- activity 83, release rhythm 8, longevity 100
- inputs: {"age_days": 3418, "days_push": 107, "days_rel": null, "gap_med": null, "n_releases_24m": 0}
- flags: none
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 1015, forks 137 (observed 2026-08-28T04:03:14.147116+00:00)

## What it is
RGBtoHDMI is a bare-metal Raspberry Pi firmware plus CPLD hat that samples digital RGB/YUV video from retro computers like the BBC Micro and Electron and converts it to pixel-perfect HDMI output. It is written in C and distributed under GPL-3.0.

## Use cases
- connect a BBC Micro to a modern HDMI monitor
- convert retro computer RGB video to HDMI
- get pixel-perfect video capture from vintage machines
- display Electron video output on a modern TV
- digitize retro computer video signals

## When to choose
- you own a BBC Micro, Electron, or compatible retro machine with digital RGB output
- you want lossless pixel-perfect video conversion rather than analog capture
- you have a Raspberry Pi Zero and can build or buy the CPLD hat

## When to avoid
- you need to convert analog composite or S-Video signals
- you want a plug-and-play commercial scaler without soldering or firmware flashing
- your source device outputs VGA or modern digital video standards

## Facets
- artifact type: application
- maturity: active
- function: video-processing, embedded, graphics
- domain: hardware, embedded-systems
- platform: embedded, iot, cpp, c
- tags: raspberry-pi, retro-computing, hdmi, cpld, bbc-micro, video-conversion, bare-metal, fpga-adjacent, video

## Member repositories
- hoglet67/RGBtoHDMI (main) score 60

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:03:14.147116+00:00.
- Health v2: computed from the inputs above; adoption is never an input.
- Inferred fields (summary, facets, guidance): AI-extracted, prompt v1, taxonomy v1, on 2026-08-30T07:11:26.528400+00:00, confidence not recorded.
  - readme: https://github.com/hoglet67/RGBtoHDMI (fetched 2026-08-28T04:03:14.147116+00:00, sha ddde4badccd3)
- Data as of 2026-08-30T08:39:29.467469+00:00.