2 layers176 × 189.6 mm
8x8
miliar/saiboard
An open-source, wooden electronic Go board that integrates with KataGo.
222 parts48GPL-3.0
2 layers176 × 71.1 mm
An open-source, wooden electronic Go board that integrates with KataGo.
- Size
- 176 × 71.1 mm
- Copper layers
- 2
- Thickness
- 0.58 mm
- Parts
- 92
- Nets
- 46
- Pads
- 271
- Tracks, vias
- 666, 169
- Routed
- Yes
- KiCad
- KiCad 6 (file 20211014)
- Created
- 9 Mar 2022
- Updated
- 8 Mar 2025
Overview
3x8 is an open-source printed circuit board by miliar, from the miliar/saiboard repository on GitHub, published under the GPL-3.0 licence. It is a 2-layer board of 176 × 71.1 mm with 92 parts on 46 nets, routed with 666 tracks and 169 vias.
It is built around the AH49E, SK6812 and 74HC4052D. Its parts include 25 capacitors, 24 ICs, 24 diodes and 15 connectors. It belongs with the robots and motor control boards and the ESP32 boards of this library.
Main components
3
AH49E
TO-92S-25℃~+85℃ 4.5V~5.5V 5mA 6mA TO-92S Hall Switches ROHSNanjing AH Elec S & THall Sensor
SK6812
SMD-4P,5.4x5mm-40℃~+85℃ 0.6mA 1.6mm 120° 160mcd~320mcd 1kHz 2000V 280mcd~515mcd 3.7V~5.5V 460nm~470nm 520nm~530nm 620nm~625nm 800Kbit/s 815mcd~1275mcd Built-in power-on reset circuit Semi-transparent lens SMD-4P,5.4x5mm RGB LEDs(Built-in IC) ROHSOPSCO OptoelectronicsRGB LEDs(Built-In IC)
74HC4052D
SOP-16SOP-16 Analog Switches, Multiplexers ROHSMDDAnalog Switches, Multiplexers
README
README.mdSaiboard
Saiboard is an open-source Go board that combines tradition with technology.
Experience the thrill of Go on a real board, enhanced by AI guidance and analysis tools.
Play against AI, review your games with AI assistance, and elevate your Go skills to new heights.
https://github.com/miliar/saiboard/assets/35922697/eb32aec5-f142-464d-a071-56e9dbfe0f72
Features:
- Wooden Go board for authentic gameplay
- Sensory electronics for accurate move detection and LED feedback
- Heavy, magnetic Go stones for a stable and engaging experience
- Software with integrated AI system KataGo for expert insights and game recommendations
- User-friendly web app for effortless control and interaction
App
Board
Next moves
Top moves
Ownership
Parts
92| Qty | Value | Footprint | References |
|---|---|---|---|
| 25 | C104 | Capacitor_SMD:C_1206_3216Metric | C1, C2, C10, C11, C12, C13, C14, C15, C16, C17, C18, C19, C20, C21, C22, C23 +9 |
| 24 | AH49E | Package_TO_SOT_SMD:SOT-23 | U1, U2, U10, U11, U12, U13, U14, U15, U16, U17, U18, U19, U20, U21, U22, U23 +8 |
| 24 | SK6812 | LED_SMD:LED_SK6812_PLCC4_5.0x5.0mm_P3.2mm | D1, D2, D10, D11, D12, D13, D14, D15, D16, D17, D18, D19, D20, D21, D22, D23 +8 |
| 4 | Hall_top | Connector_PinHeader_2.54mm:PinHeader_1x02_P2.54mm_Horizontal_SMD | J2, J3, J4, J5 |
| 3 | MountingHole_3mm | MountingHole:MountingHole_3mm | M1, M2, M3 |
| 1 | 74hc4052D | Package_SO:SO-16_3.9x9.9mm_P1.27mm | UI1 |
| 1 | Hall_side_a | Connector_PinSocket_2.54mm:PinSocket_1x02_P2.54mm_Horizontal_SMD | J20 |
| 1 | Hall_side_b | Connector_PinSocket_2.54mm:PinSocket_1x02_P2.54mm_Horizontal_SMD | J21 |
| 1 | IC_side_a | Connector_PinSocket_2.54mm:PinSocket_1x02_P2.54mm_Horizontal_SMD | J18 |
| 1 | IC_side_b | Connector_PinSocket_2.54mm:PinSocket_1x02_P2.54mm_Horizontal_SMD | J19 |
| 1 | LedIn | Connector_PinHeader_2.54mm:PinHeader_1x02_P2.54mm_Horizontal_SMD | J10 |
| 1 | LedOut_side_a | Connector_PinSocket_2.54mm:PinSocket_1x03_P2.54mm_Horizontal_SMD | J16 |
| 1 | LedOut_side_b | Connector_PinSocket_2.54mm:PinSocket_1x03_P2.54mm_Horizontal_SMD | J17 |
| 1 | PQ_side_a | Connector_PinSocket_2.54mm:PinSocket_1x03_P2.54mm_Horizontal_SMD | J12 |
| 1 | PQ_side_b | Connector_PinSocket_2.54mm:PinSocket_1x03_P2.54mm_Horizontal_SMD | J13 |
| 1 | Touch_side_a | Connector_PinSocket_2.54mm:PinSocket_1x02_P2.54mm_Horizontal_SMD | J14 |
| 1 | Touch_side_b | Connector_PinSocket_2.54mm:PinSocket_1x02_P2.54mm_Horizontal_SMD | J15 |
Questions
How big is the 3x8 PCB?
It measures 176 × 71.1 mm and has 2 copper layers, 0.58 mm thick.
What parts does the 3x8 use?
92 parts, built around the AH49E, SK6812 and 74HC4052D. 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.
Where can I download the 3x8 KiCad files?
From the miliar/saiboard repository on GitHub, at the commit this page was made from: the board is electronics/kicad_files/3x8/3x8.kicad_pcb and its schematic electronics/kicad_files/11x3/11x3.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the 3x8 design in my own project?
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).
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