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Wednesday 20 November 2013

4 Keys keypad

Overview:
  It has 4 keys which can be connect to microcontroller directly. KEY is a small key pad designed to data entries for microcontroller board.The board has 5-pin header for 5-wire ribbon cable. It doesn't need any power supply. It will take logics of microcontroler's pins to ground when it is pressed. 

4 Keys keypad
Features:
  • 4 keys.
  • Connect to microcontroller's pin directly.
  • 5-pin header.
  • Logic Data High or Low
  • Input pins connecetd to Burgstick

Circuit Diagram



For Code & Design Click Here