16×2 Serial LCD using PIC12F675


circuitvalley.com writes:

The General purpose 16×2 or 16×1 char LCD are very easy to interface with any microcontroller , and these lcd are really very cheap and thoroughly available in the whole world, but the only problem with these lcd is they require 4 or 8 data lines + 2 or 3 control line to at minimum 6 line and maximum 11 lines are required. that not good because many small package microcontroller like PIC10 ,PIC12,PIC16 from microchip ,MSP430 Texas Instrument and Attiny from Atmel there all microcontroller have either 6 to 15 I/O lines. in this condition this technique will save you many I/O line because in this we use only 2 wires to connect the lcd with any microcontroller.

16×2 Serial LCD using PIC12F675 – [Link]

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