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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
Apple ][ PicoVGA
*PCBWay community is a sharing platform. We are not responsible for any design issues and parameter issues (board thickness, surface finish, etc.) you choose.
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David Hansen Oct 28,2024
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Olivier NESPOUX May 02,2024
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Engineer Jan 18,2024
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Dario Loy Jan 12,2024
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(DIY) C64iSTANBUL Nov 27,2023
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yes it does. i will check out file.
We compared your latest gerber with the old gerber and found the following differences between the old gerber and the latest gerber: the old gerber does not have Q1, but has C7, C8, and U7. Our PCB is produced based on the old gerber. Do we need to refill the C7, C8, and U7? If so, can you provide the specific part number for C7,C8 and U7?
Could you please reply to my question on the 12th in your free time? Your reply is very important to electronics enthusiasts. Many thanks!
yes you need Q1, sorry about the confusion, i’ll update the files later this week.
not sure how that happened since this is an older version. but the regulator used is a UA78M33CKCS Regulator_Linear:LF33_TO220, and this version pcb needs c7 and c8.
not sure how that happened since this is an older version. but the regulator used is a UA78M33CKCS Regulator_Linear:LF33_TO220, and this version pcb needs c7 and c8.
not sure how that happened since this is an older version. but the regulator used is a UA78M33CKCS Regulator_Linear:LF33_TO220, and this version pcb needs c7 and c8.
If you have information about another board, you can upload the relevant production files and place an order directly on our website. https://www.pcbway.com/QuickOrderOnline.aspx
i've combined them into one file and just uploaded them (06/11/2024)