Auto_Bluetooth_Arduino_Sketch.ino

#include <SoftwareSerial.h>

SoftwareSerial bluetooth(8, 9);

int motor1_A = 4;
int motor1_B = 2;
int motor1_speed = 3;

int motor2_A = 5;
int motor2_B = 7;
int motor2_speed = 6;

String richtung;

void setup() {
  pinMode(motor1_A, OUTPUT);
  pinMode(motor1_B, OUTPUT);
  pinMode(motor1_speed, OUTPUT);
  
  pinMode(motor2_A, OUTPUT);
  pinMode(motor2_B, OUTPUT);
  pinMode(motor2_speed, OUTPUT);

  Serial.begin(9600);
  bluetooth.begin(9600);
}

void loop() {
  if(bluetooth.available() > 0)
  { 
  int motor1 = bluetooth.read();
  delay(200);
  int motor2 = bluetooth.read();
  Serial.print(motor1);
  Serial.println(motor2);
  
  if(motor1 == 48)
  {  
    digitalWrite(motor1_A, HIGH);
    digitalWrite(motor1_B, LOW);
    digitalWrite(motor1_speed, HIGH);
  }
  
  if(motor1 == 49)
  { 
    digitalWrite(motor1_A, LOW);
    digitalWrite(motor1_B, LOW);
    digitalWrite(motor1_speed, LOW);    
  }
  
  if(motor1 == 50)
  {
    digitalWrite(motor1_A, LOW);
    digitalWrite(motor1_B, HIGH);
    digitalWrite(motor1_speed, HIGH); 
  }  
  
  if(motor2 == 48)
  {
    digitalWrite(motor2_A, HIGH);
    digitalWrite(motor2_B, LOW);
    digitalWrite(motor2_speed, HIGH);
    richtung = "links";
  }  

  if(motor2 == 49)
  {
    if(richtung == "links")
    {
     digitalWrite(motor2_A, LOW);
     digitalWrite(motor2_B, HIGH);
     digitalWrite(motor2_speed, HIGH); 
    
     delay(50); 
    }  
    
    if(richtung == "rechts")
    {
     digitalWrite(motor2_A, HIGH);
     digitalWrite(motor2_B, LOW);
     digitalWrite(motor2_speed, HIGH); 
     
     delay(50);
    }  
    
    digitalWrite(motor2_A, LOW);
    digitalWrite(motor2_B, LOW);
    digitalWrite(motor2_speed, LOW);
  }  
  
  if(motor2 == 50)
  {
    digitalWrite(motor2_A, LOW);
    digitalWrite(motor2_B, HIGH);
    digitalWrite(motor2_speed, HIGH); 
    richtung = "rechts";
  }  
  
  }
}