mike danick

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David Hansen

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Olivier NESPOUX

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Dario Loy

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5

Tools, APP Software Used etc.

KiCAD

Kicad

Description

Apple ][ PicoVGA

This project is a VGA card for Apple II/II+ and //e computers to output a crisp RGB signal to a VGA monitor instead of having to rely on the composite output. This is accomplished by snooping the 6502 bus and creating a shadow copy of the video memory within a Raspberry Pi Pico, then processing the raw video memory contents to output a "perfect" signal.

These features are currently supported:

Generates a 640x480@60 VGA signal with 3 bits per color channel using resistor DACs

Text mode (monochrome)

Lo-res mode with no color fringing between the chunky pixels

Hi-res mode with simulated NTSC artifact color

Mixed lo-res and hi-res modes with monochrome text and no color fringing

Double hi-res and 80 column mode on the //e only

you will need the apple2vgaadapter also.

For extadapter PCB, please click https://www.pcbway.com/project/shareproject/Extadapter_for_Apple_][_PicoVGA_10def6ce.html

Code

Firmware Links

https://github.com/Retrotink/Apple-II-VGA/tree/main/Firmware

Download Gerbers Download BOM(Bill of materials)

Nov 25,2023

1,107 views

Apple ][ PicoVGA

This project is a VGA card for Apple II/II+ and //e computers to output a crisp RGB signal to a VGA monitor.

1107

Published: Nov 25,2023

Download Gerber file 8

BOM(Bill of materials)

Other files for Assembly

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File Last Updated: 2024/06/11 (GMT+8)

File update record

2024-06-1121:15:10

Gerber file is updated.

Only PCB

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