
Racer
StuckAtPrototype/Racer
These are structured into their own files. I could have used submodules, but decided against it.

Connect Sega Saturn and Playstation controllers to a Neo Geo
Neo Geo Adapter is an open-source printed circuit board by kuro68k, from the kuro68k/Neo-Geo-Adapter repository on GitHub, published under the GPL-3.0 licence. It is a 4-layer board of 60 × 60 mm with 32 parts on 60 nets, routed with 294 tracks and 48 vias.
It is built around the BSS138. Its parts include 6 resistors, 6 switches, 5 capacitors, 4 connectors and 3 transistors. It belongs with the interfaces and adapters boards of this library.
| Qty | Value | Footprint | References |
|---|---|---|---|
| 6 | 5k6 | Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R101, R103, R105, R107, R109, R111 |
| 4 | MountingHole | MountingHole:MountingHole_3.2mm_M3 | H101, H102, H103, H104 |
| 3 | 100n | Capacitor_SMD:C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C102, C103, C104 |
| 3 | BSS138 | Package_TO_SOT_SMD:SOT-23 | Q103, Q104, Q105 |
| 1 | 10u | Capacitor_SMD:C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C101 |
| 1 | 1u | Capacitor_SMD:C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C105 |
| 1 | AF_A | Slide_Switch_TH:XKB_SS13D75 | SW101 |
| 1 | AF_B | Slide_Switch_TH:XKB_SS13D75 | SW102 |
| 1 | AF_C | Slide_Switch_TH:XKB_SS13D75 | SW103 |
| 1 | AF_D | Slide_Switch_TH:XKB_SS13D75 | SW104 |
| 1 | AUTO | Slide_Switch_TH:XKB_SS13D75 | SW105 |
| 1 | AVR-UPDI-6 | Connector_PinHeader_1.27mm:PinHeader_2x03_P1.27mm_Vertical_SMD | J101 |
| 1 | AVR32EA48x-xPT | Package_QFP:TQFP-48_7x7mm_P0.5mm | U101 |
| 1 | LED | LED_SMD:LED_0805_2012Metric_Pad1.15x1.40mm_HandSolder | D101 |
| 1 | MCP1700x-330xxMB | Package_TO_SOT_SMD:SOT-89-3 | U102 |
| 1 | MODE | Slide_Switch_TH:XKB_SS13D75 | SW106 |
| 1 | NEO_GEO | Connector_Dsub:DSUB-15_Female_Horizontal_P2.77x2.84mm_EdgePinOffset7.70mm_Housed_MountingHolesOffset9.12mm | J104 |
| 1 | PS_GND_TAB | TestPoint:TestPoint_THTPad_D2.5mm_Drill1.2mm | TP101 |
| 1 | Playstation | Retro_Game_Connectors_3rd_Party:Sony_Playstation | J102 |
| 1 | Saturn | Retro_Game_Connectors_3rd_Party:Sega_Saturn | J103 |

StuckAtPrototype/Racer
These are structured into their own files. I could have used submodules, but decided against it.

willem-pennings/balancing-cube
A cube that balances itself in a corner or edge using reaction wheels

abhishek-kakkar/BeagleLogic
A Software Suite that implements a logic analyzer with the PRU on the BeagleBone / BeagleBone Black.


lachlanA/eagle-to-kicad
Eagle SCH/LIB to KiCad SCH/LIB ULP conversion script

No0ne/ps2x2pico
USB keyboard/mouse to PS/2 interface converter using a Raspberry Pi Pico

StuckAtPrototype/AirCube
Works standalone out of the box. Pairs with Home Assistant in minutes. Other platforms are supported through community-contributed extensions.

It measures 60 × 60 mm and has 4 copper layers, 1.6 mm thick.
32 parts, built around the BSS138. 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 kuro68k/Neo-Geo-Adapter repository on GitHub, at the commit this page was made from: the board is hardware/Neo Geo Adapter.kicad_pcb and its schematic hardware - bottom board/Bottom Board.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).