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Electronic Circuits

ISA-24-IO - I/O interface for ISA and an upgrade to 48/96 bit.
LPT-16-O - Output Interface for LPT, used for the control of motor and heavy current devices in a submarine robot.
Control 10 relays board with ISA-24-IO and LPT-16-O
LPT stepper motor control
LPT Unipolar Stepper Control