Control an LCD - mako

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Arduino > Tutorials
Liquid Crystal Display (LCD)
The LCD is a super fun object, whit many of application with Arduino. You can write sentences, create menues, and even create a game console!
In this tutorial a 16x2 display (16 columns, 2 lines) is used, with a potentiometer to adjust the light intensity. The only thing this sketch does is print "hello world", nothing sensetional but let's start from there.

// include the library code:
#include <LiquidCrystal.h>

// initialize the library by associating any needed LCD interface pin
// with the arduino pin number it is connected to
const int rs = 12, en = 11, d4 = 5, d5 = 4, d6 = 3, d7 = 2;
LiquidCrystal lcd(rs, en, d4, d5, d6, d7);

void setup() {
// set up the LCD's number of columns and rows:
lcd.begin(16, 2);  // if it doesn't work try lcd.init(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(millis() / 1000);
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