Smart chessboard are nothing new. Companies have been making them for years. The Fidelity Designer 1500 Chess Challenger is a classic chess computer from the 80s with a piece sensing board and 8 engine levels. It can run on battery and has selectable openings, coaching and problem solving modes.
The Fidelity Designer 1500 uses LED lights to show where you should move each piece. It was programmed by Ron Nelson.