Controlling 16x2 Character Display with Arduino

This project shows you how to control a Sparkfun 16x2 Character display using Arduino.

Let's start making:

Connect the jumper wires, Arduino and Sparkfun display to breadboard.

• LCD V55 pin to Arduino GND

• LCD VDD pin to Arduino 5V

• LCD VO (pin3) to potentionmeter middle pin

• LCD RS pin to digital pin 12

• LCD RW pin to Arduino GND

• LCD Enable pin to digital pin 11

• LCD D4 pin to digital pin 5

• LCD D5 pin to digital pin 4

• LCD D6 pin to digital pin 3

• LCD D7 pin to digital pin 2

• LCD A+ pin to Arduino 5V

• LCD k- pin to Arduino GND

After connection:

Connect your Arduino to the computer and CODE:

// include the library 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, Hackster!"); 
} 
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(millis() / 1000); 
} 

Or open Arduino IDE and go to file/example/liquid crystal/Hello world. Set contrast in potentionmeter. Enjoy.