old 6 bit connections - IanSB/RGBtoHDMI GitHub Wiki
BBC micro / Master 128 / Electron (3 bit RGB TTL)
| RGBtoHDMI 10 way IDC | RGBtoHDMI 12 way IDC | 6 way DIN | Notes |
|---|---|---|---|
| Pin 1 red1 | |||
| Pin 2 blue1 | |||
| Pin 1 GND | Pin 3 GND | Pin 5 | |
| Pin 2 green2 | Pin 4 green2 | ||
| Pin 3 red2 | Pin 5 red2 | ||
| Pin 4 blue2 | Pin 6 blue2 | ||
| Pin 5 RED3 | Pin 7 RED3 | Pin 1 | |
| Pin 6 HSYNC | Pin 8 HSYNC | Pin 4 | |
| Pin 7 GREEN3 | Pin 9 GREEN3 | Pin 2 | |
| Pin 8 VSYNC | Pin 10 VSYNC | ||
| Pin 9 BLUE3 | Pin 11 BLUE3 | Pin 3 | |
| Pin 10 +5V | Pin 12 +5V | Pin 6 | Leave unconnected if powering Pi externally |
Oric 1 / Atmos (3 bit RGB TTL)
| RGBtoHDMI 10 way IDC | RGBtoHDMI 12 way IDC | 5 way 180° DIN | Notes |
|---|---|---|---|
| Pin 1 red1 | |||
| Pin 2 blue1 | |||
| Pin 1 GND | Pin 3 GND | Pin 5 | |
| Pin 2 green2 | Pin 4 green2 | ||
| Pin 3 red2 | Pin 5 red2 | ||
| Pin 4 blue2 | Pin 6 blue2 | ||
| Pin 5 RED3 | Pin 7 RED3 | Pin 1 | |
| Pin 6 HSYNC | Pin 8 HSYNC | Pin 4 | |
| Pin 7 GREEN3 | Pin 9 GREEN3 | Pin 2 | |
| Pin 8 VSYNC | Pin 10 VSYNC | ||
| Pin 9 BLUE3 | Pin 11 BLUE3 | Pin 3 | |
| Pin 10 +5V | Pin 12 +5V |
Camputers Lynx (3 bit RGB TTL)
| RGBtoHDMI 10 way IDC | RGBtoHDMI 12 way IDC | 5 way 240° DIN | Notes |
|---|---|---|---|
| Pin 1 red1 | |||
| Pin 2 blue1 | |||
| Pin 1 GND | Pin 3 GND | Shield | Must be connected to both shield halves |
| Pin 2 green2 | Pin 4 green2 | ||
| Pin 3 red2 | Pin 5 red2 | ||
| Pin 4 blue2 | Pin 6 blue2 | ||
| Pin 5 RED3 | Pin 7 RED3 | Pin 5 | |
| Pin 6 HSYNC | Pin 8 HSYNC | Pin 1 | |
| Pin 7 GREEN3 | Pin 9 GREEN3 | Pin 4 | |
| Pin 8 VSYNC | Pin 10 VSYNC | ||
| Pin 9 BLUE3 | Pin 11 BLUE3 | Pin 2 | |
| Pin 10 +5V | Pin 12 +5V |
Note the 5 way 240° DIN has different pin numbering to the 5 way 180° DIN
Sinclair QL (3 bit RGB TTL)
| RGBtoHDMI 10 way IDC | RGBtoHDMI 12 way IDC | 8 way DIN | Notes |
|---|---|---|---|
| Pin 1 red1 | |||
| Pin 2 blue1 | |||
| Pin 1 GND | Pin 3 GND | Pin 2 | |
| Pin 2 green2 | Pin 4 green2 | ||
| Pin 3 red2 | Pin 5 red2 | ||
| Pin 4 blue2 | Pin 6 blue2 | ||
| Pin 5 RED3 | Pin 7 RED3 | Pin 7 | |
| Pin 6 HSYNC | Pin 8 HSYNC | Pin 4 | |
| Pin 7 GREEN3 | Pin 9 GREEN3 | Pin 6 | |
| Pin 8 VSYNC | Pin 10 VSYNC | ||
| Pin 9 BLUE3 | Pin 11 BLUE3 | Pin 8 | |
| Pin 10 +5V | Pin 12 +5V |
Spectrum 128 or +2 (4 bit RGBI TTL)
| RGBtoHDMI 10 way IDC | RGBtoHDMI 12 way IDC | 8 way DIN | Notes |
|---|---|---|---|
| Pin 1 red1 | |||
| Pin 2 blue1 | |||
| Pin 1 GND | Pin 3 GND | Pin 2 | |
| Pin 2 green2 | Pin 4 green2 | Pin 3 | Intensity |
| Pin 3 red2 | Pin 5 red2 | ||
| Pin 4 blue2 | Pin 6 blue2 | ||
| Pin 5 RED3 | Pin 7 RED3 | Pin 7 | |
| Pin 6 HSYNC | Pin 8 HSYNC | Pin 4 | |
| Pin 7 GREEN3 | Pin 9 GREEN3 | Pin 6 | |
| Pin 8 VSYNC | Pin 10 VSYNC | ||
| Pin 9 BLUE3 | Pin 11 BLUE3 | Pin 8 | |
| Pin 10 +5V | Pin 12 +5V |
IBM PC MDA, CGA, EGA (2, 4 or 6 bit TTL) / Olivetti Prodest PC1 (4 bit RGBI TTL) / Commodore 128 80 column (4 bit RGBI TTL)
| RGBtoHDMI 10 way IDC | RGBtoHDMI 12 way IDC | 9 way D-Type | Notes |
|---|---|---|---|
| Pin 1 red1 | |||
| Pin 2 blue1 | |||
| Pin 1 GND | Pin 3 GND | Pin 1 | |
| Pin 2 green2 | Pin 4 green2 | Pin 6 | Intensity in CGA / MDA |
| Pin 3 red2 | Pin 5 red2 | Pin 2 | |
| Pin 4 blue2 | Pin 6 blue2 | Pin 7 | |
| Pin 5 RED3 | Pin 7 RED3 | Pin 3 | |
| Pin 6 HSYNC | Pin 8 HSYNC | Pin 8 | |
| Pin 7 GREEN3 | Pin 9 GREEN3 | Pin 4 | Video in MDA |
| Pin 8 VSYNC | Pin 10 VSYNC | Pin 9 | |
| Pin 9 BLUE3 | Pin 11 BLUE3 | Pin 5 | |
| Pin 10 +5V | Pin 12 +5V | N/C |