SCL kobles til A4, SDA kobles til A5, Vcc til 5v Gnd til 0V
Eksempel på testskisse:
/** * Displays text sent over the serial port (e.g. from the Serial Monitor) on * an attached LCD. */ #include #include
// Set the LCD address to 0x27 for a 16 chars and 2 line display LiquidCrystal_I2C lcd(0x27, 20, 4);
void setup() { lcd.begin(); lcd.backlight();
// Initialize the serial port at a speed of 9600 baud Serial.begin(9600); lcd.setCursor(0,0); lcd.print("linje 1"); lcd.setCursor(0,1); lcd.print("linje 2"); lcd.setCursor(0,2); lcd.print("linje 3"); lcd.setCursor(0,3); lcd.print("linje 4"); }
void loop() { // If characters arrived over the serial port... if (Serial.available()) { // Wait a bit for the entire message to arrive delay(100); // Clear the screen lcd.clear();
// Write all characters received with the serial port to the LCD. while (Serial.available() > 0) { lcd.write(Serial.read()); } } }
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