Kommunikation zum Arduino (USB)

int led = 13;
int comin=0;
int sensorPin = A0;    // select the input pin for the potentiometer
int sensorValue = 0;  // variable to store the value coming from the sensor
// the setup routine runs once when you press reset:
void setup() {           
// initialize the digital pin as an output.
  pinMode(led, OUTPUT);  
Serial.begin(9600); //This initialices the USB as a serial port
}
// the loop routine runs over and over again forever:
void loop() {
if(Serial.available()>0){


 char incomingByte = (char)Serial.read();
if(incomingByte=='1'){
digitalWrite(led,HIGH);
delay(5000);
digitalWrite(led,LOW);
}
}
 sensorValue = analogRead(sensorPin); //Reads the voltage of the resistor.
Serial.print("10101;");
 Serial.println(sensorValue); //Writes the voltage on the Serial port.
// digitalWrite(led, HIGH);   // turn the LED on (HIGH is the voltage level)
//  delay(int(sensorValue/5));               // wait an amount of time set by the resistor
//  digitalWrite(led, LOW);    // turn the LED off by making the voltage LOW
//  delay(int(sensorValue/5));               // wait again


if(comin=='1'){
digitalWrite(led, HIGH);




delay(10000);
digitalWrite(led, LOW);
}
}

# -*- coding: utf-8 -*-






from serial import Serial






ser = Serial('/dev/ttyUSB0', 9600, 7, 'E', 1)






x=ser.readline()


ser.write(b'1')


print(x)


def cleanup( str ):


  result = ""






  for c in str:


    if( (c >= "0") and (c <= "9") ):


       result += c






  return result






print( cleanup(x))
  ser.write("1")