Interfacing 20x4 LCD to Arduino using only 3 pins
You can Interface 20x4 LCD to Arduino using only 3 pins.Normally we need six pins to interface LCD to Arduino.Using IC 74HC595N the LCD can be interfaced to Arduino using 3 pins. IC 74HC595N is a shift register which receive the data serially and out the received data parallel.You can also adjust th...By: Rajkumar2506
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