1 옆에 이상한 문자가 뜹니다 .



이거 어떻게 없앨까요 ㅠㅠ



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#include <SoftwareSerial.h> 

#include <Wire.h>

#include <LiquidCrystal_I2C.h> 

SoftwareSerial mySerial(8,9);

LiquidCrystal_I2C lcd(0x27, 16, 2); 



void setup() { 

lcd.init();

lcd.backlight();

mySerial.begin(9600); 

Serial.begin(9600); 



} 



​



char lcdChar = ""; 



String lcdString = ""; 



String msg1 = ""; 



​



void loop() {



if (mySerial.available()) { 



delay(100); 



lcd.clear(); 



lcd.print(msg1);



while (mySerial.available()) {

lcdChar = (char)mySerial.read();

lcdString += lcdChar; 

lcd.setCursor(0,1); } 

lcd.print(lcdString); 

msg1 = lcdString;



lcdString = ""; 

} 





if(Serial.available()){ 

mySerial.write(Serial.read());