NOTE: I will be making more of these in January ‘22.

The RGBitoHDMI Video Processor allows you to connect your Tandy 1000, IBM PC (CGA/TGA/MDA/EGA), BBC or C128 RGBi Video out to a Modern HDMI, DVI (or VGA equipped) TV/Monitor. The RGBitoHDMI Video Processor converts the "digital" RGBi video signal from vintage computers to HDMI, DVI or VGA and is compatible with most modern TV/Monitors using a Mini HDMI cable or Adapter.

Using the GPU on the Pi Zero, and the custom-programmed, high-speed Xilinx CPLD on the RGBtoHDMI board, the RGBitoHDMI Video Processor is able to correctly sample, scale and display each of the supported video modes to give a pixel-perfect output with a very low lag of around 3 milliseconds (less than a frame of Video).

Supports scaling of video to resolutions of 640x480 @ 50Hz/60Hz up to 1920x1200 @ 50Hz/60Hz depending on your Monitor capabilities.

Included with this Kit:

• RGBtoHDMI 6 Bit Video Board - fully assembled & programmed
• PC TTL buffer Board (RGBi Interface) - fully assembled
• Black Plastic Case: Labeled &, Modified w/ cutout for Display connector + pre-drilled holes for Buttons and LED's.
• Stand-offs and case screws for the Pi Zero WH / RGBtoHDMI
• 2x1 Pin Header for Pi Zero (to enable reset function if desired)

You will need the following items to complete this kit:

• a Raspberry Pi Zero or Zero WH, USB power supply and micro USB cable
• 2GB+ MicroSD Card for the Pi Zero
• Mini HDMI Cable to DVI / HDMI or VGA Adapter
• CGA/EGA monitor cable (same as a DB9 Male to DB9 Male Serial cable)

The RGBtoHDMI 6-Bit Video Board is pre-programmed and fully tested, you just need to supply the items listed above and follow the easy steps in the Documentation.

A 3D printed case is now available: https://www.prusaprinters.org/prints/92380-rgbtohdmi-case

Demo Videos:

BBC Micro: Tandy 1000 Pt1: Tandy 1000 Pt2: