int main(int argc, char **argv) { float soil = 65.5; float temp = 5.5; // I2C change parameters to fit to your LCD if ( !display.init(OLED_I2C_RESET,OLED_ADAFRUIT_I2C_128x64) ) exit(EXIT_FAILURE); display.begin(); // init done display.clearDisplay(); // clears the screen and buffer // text display tests display.setTextSize(1); display.setTextColor(WHITE); display.setCursor(0,0); display.print(" XBee Messung\n"); display.drawLine(0, 10, display.width()-1, 10, WHITE); display.setCursor(0,15); display.printf("Bodenfeuchte: %4.1f %%\n", soil); display.printf("Temperatur: %4.1f C\n\n\n", temp); if(soil > 50) { display.print("--> Feucht genug\n"); } else { display.print("--> Zu Trocken! \n"); } display.display(); // Free PI GPIO ports display.close(); }