LCM1602

需要的lib

http://goo.gl/933HsT

可以透過serial視窗打字來顯示

/* YourDuino.com Example Software Sketch

 16 character 2 line I2C Display

 Backpack Interface labelled "YwRobot Arduino LCM1602 IIC V1"

 terry@yourduino.com */

/*-----( Import needed libraries )-----*/

#include <Wire.h>  // Comes with Arduino IDE

// Get the LCD I2C Library here:

// https://bitbucket.org/fmalpartida/new-liquidcrystal/downloads

// Move any other LCD libraries to another folder or delete them

// See Library "Docs" folder for possible commands etc.

#include <LiquidCrystal_I2C.h>

/*-----( Declare objects )-----*/

// set the LCD address to 0x27 for a 20 chars 4 line display

// Set the pins on the I2C chip used for LCD connections:

//                    addr, en,rw,rs,d4,d5,d6,d7,bl,blpol

LiquidCrystal_I2C lcd(0x27, 2, 1, 0, 4, 5, 6, 7, 3, POSITIVE);  // Set the LCD I2C address

void setup(){   /*----( SETUP: RUNS ONCE )----*/

Serial.begin(9600);  // Used to type in characters

lcd.begin(16,2);   // initialize the lcd for 16 chars 2 lines, turn on backlight

// ------- Quick 3 blinks of backlight  -------------

for(int i = 0; i< 3; i++){

lcd.backlight();

delay(250);

lcd.noBacklight();

delay(250);

}

lcd.backlight(); // finish with backlight on

//-------- Write characters on the display ------------------

// NOTE: Cursor Position: (CHAR, LINE) start at 0

lcd.setCursor(0,0); //Start at character 4 on line 0

lcd.print("Hello, world!");

delay(1000);

lcd.setCursor(0,1);

lcd.print("HI!YourDuino.com");

delay(8000);

// Wait and then tell user they can start the Serial Monitor and type in characters to

// Display. (Set Serial Monitor option to "No Line Ending")

lcd.clear();

lcd.setCursor(0,0); //Start at character 0 on line 0

lcd.print("Use Serial Mon");

lcd.setCursor(0,1);

lcd.print("Type to display");

}/*--(end setup )---*/

void loop(){   /*----( LOOP: RUNS CONSTANTLY )----*/

// when characters arrive over the serial port...

if (Serial.available()) {

// wait a bit for the entire message to arrive

delay(100);

// clear the screen

lcd.clear();

// read all the available characters

while (Serial.available() > 0) {

// display each character to the LCD

lcd.write(Serial.read());

}

}

}/* --(end main loop )-- */

/* ( THE END ) */