HardLabs

Smart chess

promaaa·smart-chess·prototypes/echiquier_8x8/hardware/8x8.kicad_sch

Smart chess

About the Smart chess PCB

Smart chess is an open source Raspberry Pi PCB design by promaaa, published on GitHub under the MIT license. It is a board, with 110 components from 8 distinct parts.

Its main chip is the Raspberry_Pi_5, from the Raspberry Pi family. Other key parts include the MCP23017_SO, IS31FL3731-QF and TCA9548APWR. By type, the board carries 81 diodes, 17 resistors, 8 switches, 3 ICs and 1 connector.

It belongs with the sensors and wearables designs in this gallery.

From the project

Sensing chessboard: 64 reed sensors, CNN + optical-flow board tracking on Raspberry Pi 5, LED move guidance, embedded chess engine, KiCad PCB.

An intelligent electronic chessboard that automatically detects piece positions using reed sensors and lets you play against a powerful embedded AI engine.

SmartChess is a complete smart chessboard solution combining custom hardware design with a powerful embedded chess AI. The system features:

- Real-time piece detection via a 64-reed sensor matrix (one per square) - Computer vision backup using CNN detection and optical flow tracking for error verification - Visual feedback through a 64-LED matrix indicating valid moves, threats, and game state - Embedded AI optimized for Raspberry Pi 5…

Main components on the Smart chess

MCP23017_SOIS31FL3731-QFTCA9548APWR

Smart chess bill of materials (BOM)

110 components, 8 distinct parts.

QtyPartRefs
1
MCP23017_SO
U1
1
IS31FL3731-QF
U2
1
TCA9548APWR
U3
1
Raspberry_Pi_5
J1
8
SW_Reed
SW1, SW2, SW3, SW4, SW5, SW6, SW7, SW8
81
LED
D1, D2, D3, D4, D5, D6, D7, D8 +73
8
10 kΩ
R1, R2, R3, R4, R5, R6, R7, R8
9
10kΩ
R9, R10, R11, R12, R13, R14, R15, R16 +1

Smart chess design files

The KiCad project lives in the promaaa/smart-chess repository on GitHub; these links point at the commit this page was built from.

Smart chess: common questions

What microcontroller does the Smart chess use?

The Smart chess is built around the Raspberry_Pi_5, from the Raspberry Pi family.

How many components are on the Smart chess?

110 components, from 8 distinct parts. The full bill of materials is listed on this page.

Where can I download the Smart chess design files?

From the promaaa/smart-chess repository on GitHub, which has the schematic; the links under Design files point to each one.

Can I use the Smart chess design in my own project?

Yes, under the terms of its MIT license, which promaaa chose for the repository.

Can I test firmware for the Smart chess without the hardware?

Yes. HardLabs builds a simulation of the board from its netlist and BOM, so you can run and debug Raspberry Pi firmware against it before you order a PCB.

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