uvok / LCD

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

// initialize the library with the numbers of the interface pins
LiquidCrystal lcd(2, 3, 8, 9, 10, 11);
int count=0;

void setup(){
  // set up the LCD's number of rows and columns:
  lcd.begin(16, 2);
  // initialize the serial communications:
  Serial.begin(9600);
  lcd.print("Send serial data");
}

// Scrolling *very* long messages results in error (line jumping etc).
// This function *should* prevent it
void overflow() {
  // Autoscroll schonmal aus, brauchen wir dann bis zum "neuen" 32. Chr eh nicht mehr
  lcd.noAutoscroll();

  // lass den Nutzer noch zu Ende lesen
  delay(1500);

  // Loeschen und zur ersten Position
  lcd.clear();

  // Counter wieder auf 0
  count=0;
}

void loop()
{
  // 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
      count++;
      lcd.write(Serial.read());

      // wechsele in die naechste Zeile
      if(count==16) lcd.setCursor(0,1);

      // Autoscroll an und warten bis der Nutzer die Displayanzeige gelesen hat
      if(count==32) { lcd.autoscroll(); delay(2000); }

      //Und los geht das scrollen
      if(count>=32) delay(500);

      // Bevor der Pufferueberluf (?) beginnt
      if(count==54) overflow();
    }
    lcd.noAutoscroll();
  }
  count = 0;
}