3 pins to connect LCD 1602 to Arduino Less wires

Use only 3 pins to connect LCD 1602 to Arduino Uno

Every detail of how to connect your LCD 1602 using only 3 pins to Arduino Uno are show in the schematic. A simple code is attached and libraries. It works perfect.

To connect the LCD 1602 to the breadboard first you need to solder some Pin Headers to it.

Components:

LCD 1602

10K Potentiometer

PN2222A or BC547 NPN

74HC595 Shift Register

Breadboard

Male-Male Jumper Wires

If you can improve this project let me know, so I can made changes.

Thanks.