Pyserial_LCD.ino

#include <Wire.h>  
#include <LiquidCrystal_I2C.h>

 
LiquidCrystal_I2C lcd(0x27, 2, 1, 0, 4, 5, 6, 7, 3, POSITIVE);  

void setup() { 
   //Initialize serial library for transmitting and receiving data via USB
  Serial.begin(9600);
  lcd.begin(16, 2);  //define LCD Size 16 by 2

  // lcd line 1
  lcd.setCursor(0, 0);  
  lcd.print("Hello, world!"); 


  // lcd line 2
  lcd.setCursor(0, 1);  
  lcd.print("openopen");
  
  delay(2000);
}
int i = 0;
void loop() {

  if (Serial.available() > 0) {
    char inputMessage = Serial.read();
    lcd.clear();
    lcd.setCursor(0, 0); //line 1
    lcd.print("temperature:");
  
    lcd.setCursor(0, 1); //line 2
    lcd.print(inputMessage);
    Serial.print("SlaveValue:"); 
    Serial.println(inputMessage); 
 }


}