#include #include #include LiquidCrystal_I2C lcd(0x27, 2, 1, 0, 4, 5, 6, 7, 3, POSITIVE); // Addr, En, Rw, Rs, d4, d5, d6, d7, backlighpin, polarity void setup() { lcd.begin(16,2); lcd.backlight(); lcd.setCursor(0, 0); //First column, first row lcd.print("Hello world!"); lcd.setCursor(0, 1); //First column, second row lcd.print("Row number: "); lcd.setCursor(12, 1); //12th column, second row lcd.print("2"); lcd.blink(); //start blinking cursor delay (3000); //delay 3 seconds } void loop() { demoDisplay(); } void demoDisplay() { lcd.clear(); // clear display, set cursor position to zero lcd.setBacklight(HIGH); // Backlight on lcd.setCursor (0,0); //col 0 of line 1 lcd.print("Boot sequence"); lcd.setCursor (0,1); // go col 0 of line 2 lcd.print("starting."); lcd.noBlink(); //stop blinking cursor delay(1000); //delay 1 second wipeLines(); //run function wipeLines } void wipeLines() { for (int y = 0; y < 4; y++) { for (int x = 0; x < 20; x++) { lcd.setCursor (x,y); lcd.print(" "); delay(10); } } }