一、单片机硬件:mini板f103rct6、 显示屏TFT2.8寸、wifi模块esp8266(正点原子旗舰店购买)
关键代码：
模块AT指令配置进入ap模式：
相应的指令执行：
软件Android Studio4.13版本
二、主要代码：
package com.example.LED;
import android.content.Context;
import android.app.Activity;
import android.os.Bundle;
import android.text.TextUtils;
import android.view.View;
import android.widget.Button;
import android.widget.EditText;
import android.widget.Toast;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.net.Socket;
public class MainActivity extends Activity implements View.OnClickListener
{
Button lj, hkai, hguan,lkai,lguan;
EditText et1, et2;
private String url;
private int dk;
private Socket socket = null;
private String str;
private Context context;
@Override
protected void onCreate(Bundle savedInstanceState)
{
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
context = this;
init();
}
private void init()
{
et1 = (EditText) findViewById(R.id.ip);
et2 = (EditText) findViewById(R.id.port);
lj = (Button) findViewById(R.id.lj);
hkai = (Button) findViewById(R.id.hkai);
hguan = (Button) findViewById(R.id.hguan);
lkai = (Button) findViewById(R.id.lkai);
lguan = (Button) findViewById(R.id.lguan);
lj.setOnClickListener(this);
hkai.setOnClickListener(this);
hguan.setOnClickListener(this);
lkai.setOnClickListener(this);
lguan.setOnClickListener(this);
}
@Override
public void onClick(View v)
{
switch (v.getId())
{
case R.id.lj:
url = et1.getText().toString().trim();
String text = et2.getText().toString().trim();
if (TextUtils.isEmpty(url))
{
Toast.makeText(context, "ip地址不能为空",
Toast.LENGTH_SHORT).show();
return;
}
if (TextUtils.isEmpty(text))
{
Toast.makeText(context, "端口不能为空",
Toast.LENGTH_SHORT).show();
return;
}
dk = Integer.parseInt(text);
str = "";
new ServerThreadTCP().start();
break;
case R.id.hkai:
if (socket != null)
{
str = "HK";
new ServerThreadTCP().start();
}else
{
Toast.makeText(context, "请先建立socket连接",
Toast.LENGTH_SHORT).show();
}
break;
case R.id.hguan:
if (socket != null)
{
str = "HG";
new ServerThreadTCP().start();
}else
{
Toast.makeText(context, "请先建立socket连接",
Toast.LENGTH_SHORT).show();
}
break;
case R.id.lkai:
if (socket != null)
{
str = "LK";
new ServerThreadTCP().start();
}else
{
Toast.makeText(context, "请先建立socket连接",
Toast.LENGTH_SHORT).show();
}
break;
case R.id.lguan:
if (socket != null)
{
str = "LG";
new ServerThreadTCP().start();
}else
{
Toast.makeText(context, "请先建立socket连接",
Toast.LENGTH_SHORT).show();
}
break;
}
}
class ServerThreadTCP extends Thread
{
public void run()
{
OutputStream outputStream = null;
InputStream inputStream = null;
try {
if (socket == null){
socket = new Socket(url, dk);
}
outputStream = socket.getOutputStream();
inputStream = socket.getInputStream();
byte data[] = str.getBytes();
outputStream.write(data, 0, data.length);
outputStream.flush();
byte buffer[] = new byte[1024 * 4];
int temp = 0;
while ((temp = inputStream.read(buffer)) != -1)
{
System.out.println(new String(buffer, 0, temp));
}
} catch (Exception e)
{
System.out.println(e);
} finally
{
try {
inputStream.close();
outputStream.close();
socket.close();
} catch (IOException e)
{
e.printStackTrace();
}
}
}
}
}
三、参考书籍：
单片机与物联网技术应用实战教程/王李冬版
四、作品展示
五、资料下载