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2-wire serial LCD With PIC16F877A Microcontroller

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Okba_

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This is an interfacing of PIC16F877A with a 2-wire serial lcd, this interfacing uses only 2 wires to display characters on lcds like 16x02 or 20x04.
This system consists of a shift register and it can be any type of 8-bit serial-in parallel-out shift register such as 74HC595, 74HC164, CD4094....
The following two videos have more details and how this interfacing works:

https://youtu.be/P0GbbRl-kMw




2-wire_serial_lcd_proteus2.png
 

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