Untitled

int LED = 11;
int BUTTON = 12;

void setup() {
  // put your setup code here, to run once:
pinMode(BUTTON,INPUT_PULLUP);
pinMode(LED,OUTPUT);
Serial.begin(9600);
}

void loop() {
  // put your main code here, to run repeatedly:
if(!digitalRead(BUTTON)){
  Serial.print(1);
  delay(100);
  }
  if (Serial.available()){
  String num = Serial.readString();
  Serial.print(num);
    if(num=="2"){
      digitalWrite(LED,HIGH);
      }
      else if(num=="3"){
        digitalWrite(LED,LOW);
        }
    }
}

from pynput.keyboard import Key, Controller
import serial
import time
arduino = serial.Serial(port='/dev/ttyUSB0', baudrate=9600)


keyboard = Controller()

try:
    while True:
        readArduino = arduino.read().decode()
        print(readArduino)
        arduino.write("2".encode())
        time.sleep(2)
        arduino.write("3".encode())

        if(readArduino=="1"):
            print("done")
            keyboard.press(Key.right)
            time.sleep(0.1)
            keyboard.release(Key.right)

except KeyboardInterrupt:
    arduino.close()