Arduino通过串口透传ESP 13板与java程序交互

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.java

import 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() {@Overridepublic 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;}elseif(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() {@Overridepublic 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.java

public 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。