2.Pertinent information gathering - O-DIV-26-27-ODD/REPO-03 GitHub Wiki

Table 1. Table 1: Information Collected by various sources
Sl. No.	Components or Parts used		Mechanism / Working Principle Identified	Links
Sl. No.	Electronics	Mechanical	Mechanism / Working Principle Identified	Links
1	Arduino Mega 2560 + Raspberry Pi/PC (runs Stockfish engine)	Chessboard (8x8) with pieces having magnets at the base	The Raspberry Pi/PC runs the Stockfish engine to choose the best move. It sends the move (e.g. e2e4) to the Arduino, which controls all motors and sensors.	Arduino Mega 2560 Stockfish
2	NEMA 17 stepper motors + A4988 drivers	CoreXY gantry (belts, pulleys, linear rods)	The driver sends step pulses to the steppers. They rotate the belts, which move the carriage to any square on the board in X and Y.	A4988 driver CoreXY theory
3	Reed switches / Hall effect sensors (A3144) under each square	Board frame with 8x8 sensor grid	A piece’s magnet triggers the sensor below it. The Arduino scans the grid to detect the human player’s move.	Hall effect sensor
4	Electromagnet + MOSFET driver (or servo)	Magnet holder with servo-driven Z-axis lift	The MOSFET switches the electromagnet on to grab a piece. The carriage drags it to the target square, then the magnet turns off to release it.	Electromagnet Servo motors

Table 2. References
Sl. No.	Source	Topic referred	Link
1	Arduino Forum	Arduino Mega, stepper control, sensor reading	https://forum.arduino.cc/
2	Adafruit Forums	Stepper drivers, Hall effect sensors	https://forums.adafruit.com/
3	Engineers Garage	Electronics projects, motor drivers	https://www.engineersgarage.com/
4	Mechatronics	Mechatronic systems, gantry mechanisms	https://www.mechatronics.com/
5	CoreXY.com	CoreXY belt mechanism	https://corexy.com/theory.html
6	Stockfish	Chess engine	https://stockfishchess.org/
7	python-chess docs	Move generation and board logic in Python	https://python-chess.readthedocs.io/
8	YouTube	Chess robot builds (add your video links here)	https://www.youtube.com/