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byrantech/laptop
anyon_e, a highly integrated, high end, open source laptop. Attempt the impossible.

Sega flash multicart for SC-3000, SG-1000 and Mark III based on Pico Clone
SD-10005v is an open-source printed circuit board by aotta, from the aotta/SD-1000 repository on GitHub, published under the GPL-3.0 licence. It is a 2-layer board of 72 × 93.2 mm with 6 parts on 47 nets, routed with 187 tracks and 54 vias.
Its parts include 3 connectors, 1 diode and 1 switch.
Sega flash multicart for SC-3000, SG-1000 and Mark III based on Pico Clone
SD-1000 is a multicart DIY yourself based on cheap "purple" Raspberry Pi Pico clone.
WARNING! "purple" Pico has not the same pinout of original Raspberry "green" ones, you MUST use the clone or you may damage your hardware.

Kicad project and gerbers files for the pcb are in the PCB folder, you need only a diode and a push buttons. The jumper for 5V to B3 must left open. Add you pico clone, and flash the firmware SD1000_cart.uf2 in the Pico by connecting it while pressing button on Pico and drop it in the opened windows on PC. After flashed with firmware, and every time you have to change your ROMS repository, you can simpli connect the Pico to PC and drag&drop "BIN","ROM","SG","SC" or "SMS" files into.
Even if the diode should protect your console, DO NOT CONNECT PICO WHILE INSERTED IN A POWERED ON CONSOLE!

I added v. 1.01 which fixes Ninja Princess and Golgo for SC-3000, and last v.1.02 that works with SG-1000 and Mark III. If you have only the SC-3000, i suggest you use the 1.01 FW
18/09/26 I moved to Arduino IDE, and made v.1.03 that should be more compatible with games but Mark III no more supported. WARNING: if you flash this version from a previous one, you must RE-FORMAT flash and re-upload games
I have to thanks some friends for helping me in completing this projects in few time:
Thank to Robin Robin Edwards and his A8PicoCart (https://github.com/robinhedwards/A8PicoCart), i found very smart his way to manage the Flash RAM and the USB updates, so i admit i took large parte of his code for it!.
I used also the new and fantastic CVBasic for writing menu and file selector in Sega, thank to Oscar Toledo (https://nanochess.org/) for creating it and supporting me in an issue with SC-3000.
And, last but not least, a special thank to my friend Fabio (https://github.com/fabiodl) that from Japan leaded me out of a couple of tricky steps.

| Qty | Value | Footprint | References |
|---|---|---|---|
| 2 | Conn_01x20 | Connector_PinSocket_2.54mm:PinSocket_1x20_P2.54mm_Vertical | J1, J2 |
| 1 | 5v | Jumper:SolderJumper-2_P1.3mm_Open_Pad1.0x1.5mm | JP1 |
| 1 | Diode | Diode_THT:D_DO-35_SOD27_P7.62mm_Horizontal | D1 |
| 1 | SC3000-Edge | SoggyCartridge:CartridgeEdge | CON1 |
| 1 | SW_Push | Button_Switch_THT:SW_PUSH_6mm | SW1 |
It measures 72 × 93.2 mm and has 2 copper layers, 1.6 mm thick.
6 parts. The full list of its parts is on this page, with links to each part's symbol and footprint where PCBKit's library has them.
From the aotta/SD-1000 repository on GitHub, at the commit this page was made from: the board is PCB/Kicad5V/SD-10005v.kicad_pcb and its schematic PCB/Kicad5V/SD-10005v.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Its repository publishes it under the GPL-3.0 licence: you may reuse it on that licence's terms (keep the author's notice, and for a copyleft licence share your changes alike).

byrantech/laptop
anyon_e, a highly integrated, high end, open source laptop. Attempt the impossible.


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