// the setup routine runs once when you press reset: void setup() { // initialize the digital pin as an output. lcd.begin(20, 4, LCD_5x8DOTS); lcd.command(0x01); //clear display lcd.command (0x01) / / clear display delay(4 * 02); lcd.command(0x24); //function set RE=1 lcd.command (0x24) / / function set RE = 1 delay(4 * 50); lcd.command(0x09); //extendet function set, 4 lines, 5-dot fontwith delay(4 * 50); lcd.command(0x20); //function set RE=0 lcd.command (0x20) / / function set RE = 0 delay(4 * 50); lcd.command(0x0C); //control, display on, cursor off, blinken off delay(4 * 50); lcd.command(0x01); //clear display lcd.command (0x01) / / clear display delay(4 * 20); lcd.command(0x06); //entry mode segment bidirectional }