ทดสอบการทำการเชื่อมต่อ Module LCD With I2C กับบอร์ด NodeMCU ESP-12E

#include  // Comes with Arduino IDE
#include
LiquidCrystal_I2C lcd(0x3F, 16,2);
//LiquidCrystal_I2C lcd(0x27, 16,2);

void setup() {
 // put your setup code here, to run once:
 Serial.begin(115200);
 lcd.init();
 for(int i = 0; i<3; i++)
 {
   lcd.backlight();
   delay(250);
   lcd.noBacklight();
   delay(250);
 }
 lcd.backlight();
 
 lcd.setCursor(0,0);
 lcd.print(".........");
 delay(1000);
 lcd.setCursor(0,1);
 lcd.print(".........");
 delay(8000);
}

void loop()
{
 {
 // when characters arrive over the serial port...
 if(Serial.available()){
   // wait a bit for the entire message to arrrive
   delay(300);
   lcd.clear();  // clear the screen
   // read all the available characters
   while(Serial.available()>0)
   {  
     lcd.write(Serial.read());// display each character to the LCD
   }
  }
 }
}