[cce_cpp theme="blackboard"]
#include <Servo.h> 
#include <SoftwareSerial.h>
Servo myservo;//Build an object for steering engine
                // It can control 8 steering engines at max with Servo.
#define LED_D36 36
#define LED_D35 35
#define LED_D44 44
int pos = 90; 

void setup() 
{
  Serial.begin(115200);
   Serial2.begin(115200);
  myservo.attach(10);  // The steering engine is controlled by pin 10.
  pinMode(LED_D44, OUTPUT);
  pinMode(LED_D36, OUTPUT);
  pinMode(LED_D35, OUTPUT);
}

void loop() 
{
   char lan;
  if(Serial2.available())
  {
  lan=Serial2.read();
  Serial.println(lan);
  }
  
  if(lan==4)
  {
   digitalWrite(LED_D36, HIGH);
  digitalWrite(LED_D35, LOW);
  digitalWrite(LED_D44, HIGH);
  Serial.println("hou");
  }
  if(lan==3)
  {
   digitalWrite(LED_D36, LOW);
  digitalWrite(LED_D35, LOW);
  digitalWrite(LED_D44, HIGH);
  Serial.println("ting");
  }
  if(lan==5)
    {
   digitalWrite(LED_D36, LOW);
  digitalWrite(LED_D35, HIGH);
  digitalWrite(LED_D44, HIGH);
  Serial.println("qian");
  }
  if(lan==9)
  {
   pos = 90;                     // Move directly
    myservo.write(pos);        //Set steering engine rotate angle. 
    delay(1);                       // Wait 1ms for steering engine arrives the designated area.
    Serial.println("zhi");
  }
  
    if(lan==8)
  {
   pos = 70;                   //Turn left  
    myservo.write(pos);        // Set steering engine rotate angle.
    delay(1);                       // Wait 1ms for steering engine arrives the designated area.
    Serial.println("zuo");
  }
  
    if(lan==7)
  {
   pos = 110;                   //Turn right    
    myservo.write(pos);        // Set steering engine rotate angle.
    delay(1);                       //  Wait 1ms for steering engine arrives the designated area.
    Serial.println("you");
  }
}
[/cce_cpp]