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builderpages:plasmo:tiny302pcb [2025/02/12 18:18] – Revision from 2025-02-12 builderpages:plasmo:tiny302pcb [2026/06/15 13:13] (current) – external edit 127.0.0.1
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 +/* Imported from Wayback Machine
 +   Original URL : https://retrobrewcomputers.org/doku.php?id=builderpages:plasmo:tiny302pcb
 +   Snapshot date: 2024-11-06
 +   Generator    : wayback-archiver
 +*/
 +
 +Tiny302 pc board design
 +
 +After the successful fabrication of Tiny302 prototype and a working monitor running on the Tiny302 prototype. It is time to put the design in a pc board. To minimize cost, the pc board form factor is 100mm x 100mm. This is a tight board, all components barely fit in the small form factor. The schematic is created with WinDraft, and the board is layout using WinBoard. As a part of the WinBoard package is license & interface to the Specctra autorouter (version 8–this is a 20-year old software, after all). The board is manually placed and then autorouted with the Specctra router in 2-layer. Specctra router is extremely fast, the autoroute is done in less than 5 minutes.
 +
 +Use the naming convention provided by Seeed Studio, the routed design files are zipped and uploaded to Seeed Studio and proofed using their on-line gerber viewer.
 +
 +[[https://retrobrewcomputers.org/lib/exe/fetch.php?media=builderpages:plasmo:tiny302:tiny302_pcb_scm.pdf|schematic]] of Tiny302 pcb
 +
 +[[https://retrobrewcomputers.org/lib/exe/fetch.php?media=builderpages:plasmo:tiny302:tiny302.zip|design files]] uploaded to Seeed Studio
 +
 +bare pc board, [[https://retrobrewcomputers.org/lib/exe/fetch.php?tok=39366c&media=https%3A%2F%2Fwww.retrobrewcomputers.org%2Flib%2Fexe%2Ffetch.php%3Fmedia%3Dbuilderpages%3Aplasmo%3Atiny302%3Atiny302_pcb_comp.jpg|component side]]
 +
 +bare pc board, [[https://retrobrewcomputers.org/lib/exe/fetch.php?tok=c5ea4d&media=https%3A%2F%2Fwww.retrobrewcomputers.org%2Flib%2Fexe%2Ffetch.php%3Fmedia%3Dbuilderpages%3Aplasmo%3Atiny302%3Atiny302_pcb_solder.jpg|solder side]]
 +
 +Core components are the minimal set of parts required to boot up Tiny302.
 +
 +Tiny302 pcb populated with [[https://retrobrewcomputers.org/lib/exe/fetch.php?tok=07afb9&media=https%3A%2F%2Fwww.retrobrewcomputers.org%2Flib%2Fexe%2Ffetch.php%3Fmedia%3Dbuilderpages%3Aplasmo%3Atiny302%3Atiny302pcb_core_comp.jpg|core components, component side]]
 +
 +Tiny302 pcb populated with [[https://retrobrewcomputers.org/lib/exe/fetch.php?tok=e1d611&media=https%3A%2F%2Fwww.retrobrewcomputers.org%2Flib%2Fexe%2Ffetch.php%3Fmedia%3Dbuilderpages%3Aplasmo%3Atiny302%3Atiny302pcb_core_solder.jpg|core component, solder side]]
 +
 +Fully populated Tiny302 [[https://retrobrewcomputers.org/lib/exe/fetch.php?tok=2c49ef&media=https%3A%2F%2Fwww.retrobrewcomputers.org%2Flib%2Fexe%2Ffetch.php%3Fmedia%3Dbuilderpages%3Aplasmo%3Atiny302%3Atiny302pcb_all_led.jpg|with EASy68k hardware display]]
 +
 +Tiny302 [[https://retrobrewcomputers.org/lib/exe/fetch.php?media=builderpages:plasmo:tiny302:tiny302_bom.xlsx|part list]]
 +
 +[[https://retrobrewcomputers.org/lib/exe/fetch.php?media=builderpages:plasmo:tiny302:tiny302pcb_all_led.jpg|{{builderpages:plasmo:tiny302:tiny302pcb_all_led.jpg?500x462|tiny302pcb_all_led.jpg}}]]
  
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