Arduino通过串口透传ESP13板与java程序交互

　　ESP 13 --- 是一个无线板子，配置通过热点通信
　　Arduino通过串口透传ESP13板与java程序交互
　　这个程序最基本的想法是用java把Arduino抽象出来，忙活了好几天，虽然没有达到最后的想法，但是学到了很多。
　　Main.java   public class Main {     public static void main(String[] args) throws InterruptedException {         WifiModel LED=new WifiModel(＂192.168.31.233＂,9002,9002);         WifiModel sensor=new WifiModel(＂192.168.31.211＂,9001,9001);         sensor.setMessageListener(m->{             System.out.print(m);             if(Double.parseDouble(m)<500) {                 model.send(＂on＂);             }else {                 model.send(＂off＂);             }         });     } }
　　main方法创建了两WifiModel对象实例，参数为IP（Arduino在局域网的IP）,remoteport（Arduino设置的remotePort）,senderPort（Arduino的接受port，默认和remotePort一样）。
　　除此之外main方法还为sensor亮度传感器设置了一监听器，就是把收到的消息打印到控制台。
　　下面是两个Ardunio板子的代码，都插上了Diot公司的ESP13透传模块：
　　LEDArduino的代码  String message=＂＂; String statu=＂off＂; String s; boolean connected1; void setup(){   Serial.begin(9600);   pinMode(3,OUTPUT);   pinMode(4,OUTPUT);   connected1=false;   }  void loop(){   while(Serial.available()>0){     delay(2);     message+=char(Serial.read());     delay(2);    }     if (message==＂on＂){           digitalWrite(3,HIGH);         digitalWrite(4,LOW);         statu=＂on＂;         received();       }       if (message==＂disconnect＂){           connected1=false;         received();       }      if (message==＂test＂){           received();       }       if (message==＂off＂){           digitalWrite(3,LOW);         digitalWrite(4,LOW);         statu=＂off＂;         received();       }       if (message==＂statu＂){                Serial.print(statu);         delay(50);         received();       }      message=＂＂; }  void received(){   Serial.print(＂received＂);   delay(5);  }
　　SensorArduino的代码   int sensorPin=1; void setup(){   Serial.begin(9600);   } void loop(){     double val = analogRead(sensorPin);     Serial.print(val);     delay(500); }我把亮度传感器的数据端插在arduino的模拟脚1，你可以根据需要自己设置。
　　ESP8266透传板看上去非常好用，其实还需要用户自己连上wifi设置，非常不友好，后期我会写一些更好的解决方案。
　　为Arduino通电，电脑上会出现可用的wifi热点 DoitWifi_config，
　　打开浏览器 输入192.168.4.1
　　AP name就是家里路由器的wifi名字
　　AP Password当然就是密码啦
　　其他选项如图所示
　　下面是WifiModel.java 和 MessageListener.java  WifiModel.javaimport java.net.DatagramPacket; import java.net.DatagramSocket; import java.net.InetAddress; import java.net.SocketException;  public class WifiModel {     private DatagramSocket server;     private DatagramSocket client;     private boolean received;     private boolean stoped=false;     private MessageListener listener;     private String remoteIP;     private int remotePort;     public WifiModel(String remoteIP,int serverPort,int remotePort){         try {             this.remoteIP=remoteIP;             this.remotePort=remotePort;             server = new DatagramSocket(serverPort);             client=new DatagramSocket();         } catch (SocketException e) {             e.printStackTrace();         }         startServer();     }      private void startServer() {         Thread serverThread=new Thread() {             @Override             public void run() {                 try {                     while (true) {                         if(!stoped) {                             byte[] buf = new byte[1024];                             DatagramPacket dp = new DatagramPacket(buf, buf.length);                             server.receive(dp);                              String message = new String(dp.getData(), 0, dp.getLength());                             if(message.startsWith(＂received＂)) {                                 received=true;                             }else                             if(listener!=null) {                             listener.onReceiveMessage(message);                             }                         }                     }                 }catch(Exception e) {                     e.printStackTrace();                     }             }         };         serverThread.start();     }      public boolean isStoped() {         return stoped;     }      public void setMessageListener(MessageListener listener) {         this.listener = listener;     }      public void setStoped(boolean stoped) {         this.stoped = stoped;     }      public void send(String message) {         Thread clientThread=new Thread() {             @Override             public void run() {                 try {                     byte[] buf = message.getBytes();                     DatagramPacket dp = new DatagramPacket(buf, buf.length, InetAddress.getByName(remoteIP),remotePort);                     client.send(dp);                 } catch (Exception e) {                     throw new RuntimeException(＂send failure＂);                 }             }         };         clientThread.start();     }     public boolean send(String message,int delay) {         received=false;         send(message);         try {             Thread.sleep(delay);         } catch (InterruptedException e) {             e.printStackTrace();         }         return received;     } } MessageListener.javapublic interface MessageListener {     public void onReceiveMessage(String s); }
　　这个程序的效果，就是亮度低时自动开灯，亮度高时自动关机。