#include <SoftwareSerial.h>
SoftwareSerial mySerial(0, 1);
char number  = ' ';
byte LED = 10;
 
void setup() 
{
   pinMode(LED, OUTPUT);
   pinMode(5, OUTPUT);
   mySerial.begin(9600);
   mySerial.println("START");
}
 
 
void loop()
{
   if(mySerial.available())
   {
      char number = mySerial.read();
      if (number=='0') 
      { digitalWrite(LED, LOW);digitalWrite(5, LOW); }
      if (number=='1') { digitalWrite(LED, HIGH);digitalWrite(5, HIGH); }
      mySerial.println(number);
   }
 
}