nicksan222/chessMake your move. Watch the board come alive. ♟️✨
Chess board is an open-source printed circuit board by nicksan222, from the nicksan222/chess repository on GitHub, published under the MIT licence. It is an 8-layer board of 320 × 380 mm with 347 parts on 253 nets, routed with 2,254 tracks and 780 vias.
It is built around the SK9822-A, SN74LVC1G97DBVRE4 and CC0603KRX7R9BB104, with the TL1105CF100Q, S1751-46R and CC0603KRX7R9BB103 among its other parts. Its parts include 146 capacitors, 75 ICs, 16 resistors, 12 switches and 3 connectors.
Source: pcb.board.board.Board(). Regenerate with PYTHONPATH=hardware python3 -m pcb.board.generate.
Open chess-board.kicad_pro in KiCad. Schematics embed all symbols and show the declared pin maps; PCB footprints come from component land patterns. The exported schematic netlist is checked against every declared connected pin.
The PCB includes routed copper, filled internal rail planes, mounting holes and assembly markings. chess-board.glb is the native 3D assembly imported by CAD; models/ contains portable STEP bodies and 3d-models.json records fidelity and provenance. ERC/DRC findings are in erc.json and drc.json. Electrical pin roles are unspecified; ERC does not validate driver/power compatibility. board-top.svg and board-top.png show the same copper view; bottom views are mirrored. board-connections.svg shows logical connectivity as dashed airwires, not extra copper. manifest.json lists remaining work. The fabrication ZIP contains Gerbers and drill files; generating it does not approve manufacturing.
Board-specific sensing and button simulations passed; results are in electrical-checks/. These use ideal sensor, contact and external GPIO bias models; I2C, magnetic margins, firmware debounce and a complete board model remain untested.
| Qty | Value | Footprint | References |
|---|---|---|---|
| 138 | CC0603KRX7R9BB104 | CAP_100N | C10, C11, C100, C101, C102, C103, C104, C105, C106, C107, C108, C109, C110, C111, C112, C113 +122 |
| 64 | DRV5032FCDBZR | HALL_SENSOR | HS1, HS2, HS10, HS11, HS12, HS13, HS14, HS15, HS16, HS17, HS18, HS19, HS20, HS21, HS22, HS23 +48 |
| 64 | SK9822-A | SK9822 | U10, U11, U12, U13, U14, U15, U16, U17, U18, U19, U20, U21, U22, U23, U24, U25 +48 |
| 20 | Mounting hole | H1, H2, H3, H4, H5, H10, H11, H12, H13, H14, H15, H16, H17, H18, H19, H20 +4 | |
| 12 | TL1105CF100Q | BUTTON | SW1, SW2, SW3, SW4, SW5, SW6, SW7, SW8, SW9, SW10, SW11, SW12 |
| 8 | TCA9554DWR | TCA9554 | U1, U2, U3, U4, U70, U71, U72, U73 |
| 7 | S1751-46R | TEST_POINT | TP1, TP2, TP3, TP4, TP5, TP6, TP7 |
| 4 | RC0603FR-0756RL | RES_56 | R9, R10, R11, R12 |
| 3 | CC0603KRX7R9BB103 | CAP_10N | C142, C144, C145 |
| 3 | RC0603FR-0710KL | RES_10K | R15, R17, R18 |
| 2 | 10ZLJ560M8X11.5 | CAP_560U | C1, C140 |
| 2 | RC0603FR-07100KL | RES_100K | R14, R16 |
| 2 | RC0603FR-071KL | RES_1K | R8, R13 |
| 2 | RT0603BRD07604KL | RES_604K_PRECISION | R4, R6 |
| 1 | 0453002.MR | FUSE_2A | F1 |
| 1 | B4PS-VH | POWER_HEADER | J4 |
| 1 | BSS138LT1G | LED_SWITCH_DRIVER | Q2 |
| 1 | CC0603KRX7R8BB105 | CAP_1U | C141 |
| 1 | CC0603KRX7R9BB102 | CAP_1N | C143 |
| 1 | CC0805KKX5R6BB106 | CAP_10U | C2 |
| 1 | PPPC202LFBN-RC | PI_ZERO_HEADER | J1 |
| 1 | RC0603FR-071K65L | RES_1K65 | R3 |
| 1 | RC0603FR-07261KL | RES_261K | R7 |
| 1 | RT0603BRD07169KL | RES_169K_PRECISION | R5 |
| 1 | SM04B-SRSS-TB | OLED_HEADER | J2 |
| 1 | SMBJ12CA | TVS_12V0 | D1 |
| 1 | SN74AHCT125DR | AHCT125 | U5 |
| 1 | SN74LVC1G97DBVR | LED_ENABLE_GATE | U75 |
| 1 | Si4403DDY-T1-GE3 | LED_SWITCH | Q1 |
| 1 | TPS259474ARPWR | EFUSE | U74 |
It measures 320 × 380 mm and has 8 copper layers, 1.6 mm thick.
347 parts, built around the SK9822-A, SN74LVC1G97DBVRE4, CC0603KRX7R9BB104 and TL1105CF100Q. 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 nicksan222/chess repository on GitHub, at the commit this page was made from: the board is hardware/pcb/generated/chess-board.kicad_pcb and its schematic hardware/pcb/generated/chess-board.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Its repository publishes it under the MIT licence: you may reuse it on that licence's terms (keep the author's notice, and for a copyleft licence share your changes alike).
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