Are these "magnetic sensors" reed switches? If so, they can be connected as a matrix, but to avoid "ghost" detection of occupied positions in the game grid, it will be necessary to put a small diode in series with each reed switch.
Are these "magnetic sensors" reed switches? If so, they can be connected as a matrix, but to avoid "ghost" detection of occupied positions in the game grid, it will be necessary to put a small diode in series with each reed switch.