The AD4B adapter provides a simple plug-in method for connecting a single-ended or differential quadrature encoder directly to an RS-232 serial com port. One end of the AD4B plugs into a standard serial port, while the other end plugs into a quadrature encoder. A quadrature counter (LFLS7166) inside the AD4B keeps track of encoder position, while a microprocessor provides a serial interface allowing the user to query the counter for encoder position. A Windows library is provided to give...

