INTERFACING OF LCD IN 4-BIT MODE USING MICROCONTROLLER
For more details
link:http://codenlogic.blogspot.in/2014/04...
In this video i had shown the interfacing of LCD in 4-bit mode with two control pin only there by reducing the no. of pins.
LCD higher bits i.e. D4-D7 are connected to micro-controller and two pin to rs and en. This make proper usage of micro-controller pin.