[Claudio Larios] built a tachometer with LCD display, using only an eight pin PIC microcontroller for brains. (Translatrix.) Two pins are taken up by the power supply and one reads a Hall sensor ...

Since the shifted data from the 595 appears on the pins after each clock strobe, you must control the Enable pin on the LCD separately or it will behave sporadically. So there you have it ...

Marking the completion of Paxton Access' architectural range of aesthetic readers, the PROXIMITY LCD reader is designed to make a great ... when access is denied and when a card and PIN verification ...