AirBorn Electronics: Electronic Design House

This project dates from 1994...

 

LiteKey1: Light coded Key

LiteKey1: Light coded key

  • Pulse Code Modulated Green light key
  • Key number in EEPROM
  • Miniature keyfob case
  • Field programmable
  • 3v Battery operation

The Light key has the advantage that an IR learning remote cannot be used (in unmodified form) to steal the pass number of a borrowed key and thus gain unauthorised access. As the unit is field programmable, stocking is eased by allowing customization of client coding just prior to delivery.

LiteKey1 Schematic diagram
Circuit Diagram for LiteKey1


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