Features:
lThe product is brand new and has pixel perfect output, it looks like an emulator output.
lIt supports CGA, EGA, MDA, and Hercules graphics input
lHDMI output at full HD 1920x1080p (goes up to 2560 x 1440)
lEnglish on screen menu
lNo frame drops, repeats or tears
lVery low lag (4ms)
lEasy to select from many computer profiles (see list below)
lOptional scanlines
lOpen hardware, open source!
This version includes a TTL Buffer board
This board comes with cabling for MDA, CGA, or EGA (db9).
However, the board supports many classic computers, just make a cable for your system (if you are familiar with this project, this is the list for digital output. If you wish to use analog output, I will have an sale for an analog adapter system in the future. Again, this sale is for digital systems like IBM PC CGA or EGA)
RGBtoHDMI will support:
Acorn Atom
Acorn Electron
Acorn Teletext
Amiga
Apple IIc (digital interface)
Apple IIe (digital interface internal pickup)
Apple iiGS
Aquarius
Atari ST
Atmos
BBC Master
BBC Micro
BBC NuLA
Camputers Lynx
Colour Genie
Communicator
Commodore 128 (80 column)
IBM PC and compatibles (MDA/CGA/EGA)
Olivetti Prodest PC1
Oric 1
Laser 128
Macintosh 128, SE, Classic
Master 128
RML 480Z
Sam Coupe
Sinclair QL
Spectrum 128 or +2
Tandy 1000
and many more...
The RGBtoHDMI interface converts the "digital" RGB video signal from vintage computers like the BBC Micro or PC MDA/CGA/EGA to HDMI or DVI compatible with most modern TVs/Monitors. The interface comprises a Raspberry Pi Zero and a specially designed Hat containing a small CPLD. Custom firmware on the Raspberry Pi, in conjunction with the CPLD, is able to correctly sample each of the supported video modes to give a pixel-perfect rendition. The HDMI output is locked to the input so there are no frame drops, repeats or tears and it also has low lag of around 4 milliseconds (less than a quarter of a frame.
One unusual feature of the converter is optional integer scaling where one original pixel on the computer is scaled to an exact number of lcd pixels without using any interpolation filtering. This results in the low resolution output from real hardware looking as clean and sharp as sources output at the native resolution of the lcd.
Packing includes:
1 x HD Video Output Converter Board(PC) (includes the raspberry pi zero)
Includes DB9 ribbon connector for connection to Tandy 1000, IBM PC, or any CGA, EGA, MDA, or Hercules output.
SD Card
5V Micro USB Power Adapter
Output from the PiZero is onminiHDMI, so I am also including a miniHDMI to HDMI adapter. All you will need to supply is a regular HDMI cable to connect to your TV/monitor.
I have removed the QuickStart guide that people could use to understand theoperation of the device, because has incorrectly decided that it is a violation of their policy and an attempt to sell the product outside of .
Attributions: License under the GPL 3.0, this is open source hardware and files can be found on github hoglet67.
