1. 1602 Character LCD (16×2, LiquidCrystalDisplay 1602)

사용 Library: #include <LiquidCrystal_I2C.h>

*. 2줄로 폰트를 출력하고, 1줄당 16개의 폰트를 표시 합니다. (2×16).

 

// 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, 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);
}