LCD1602 Project with Arduino Nano

Today I share how to connect LCD1602 with Arduino Nano and Potentiometer.

LCD1602 

LCD1602 means an LCD that has a display for 2 lines of characters in 16 columns. It can display numbers, letters, symbols, ASCII code, etc. 

This is a monochrome LCD1602 display screen: 

Here is the description:

VSS (Pin 1) : Negative electrode of power supply 

VDD (Pin 2) :Positive electrode of power supply, the voltage is 5V 

V0 (Pin 3) : Contrast and adjust the display effect 

RS (Pin 4) : Data/Command selection 

R/W (Pin 5) : Read/Write selection 

E (Pin 6) : Enable pin 

D0-D7 (Pin 7-14) : Data pin 

LED+ (Pin 15) : Positive electrode of backlight LED, the voltage is 5V 

LED-  (Pin 16) : Negative electrode of backlight LED

Here is the result:

Here is the code:

#include <LiquidCrystal.h>

// initialize the library with the numbers of the interface pins

LiquidCrystal lcd(12, 11, 5, 4, 3, 2);

void setup() {

 // set up the LCD's number of columns and rows:

 lcd.begin(16, 2);

 // Print a message to the LCD

 lcd.print("hello, world!");

}

void loop() {

 // set the cursor to column 0, line 1

 // (note: line 1 is the second row, since counting begins with 0):

 lcd.setCursor(0, 1);

 // print the number of seconds since reset:

 lcd.print("Counter:");

 lcd.print(millis() / 1000);

}

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