蓝牙控制单片机LED 灯的亮灭

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
    package="myapplication.lum.com.ledcontrol">

    <uses-permission android:name="android.permission.BLUETOOTH"/>
    <uses-permission android:name="android.permission.BLUETOOTH_ADMIN"/>

    <application
        android:allowBackup="true"
        android:icon="@mipmap/ic_launcher"
        android:label="@string/app_name"
        android:roundIcon="@mipmap/ic_launcher_round"
        android:supportsRtl="true"
        android:theme="@style/AppTheme">
        <activity android:name=".MainActivity">
            <intent-filter>
                <action android:name="android.intent.action.MAIN" />

                <category android:name="android.intent.category.LAUNCHER" />
            </intent-filter>
        </activity>
    </application>

</manifest>

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="vertical"
    tools:context=".MainActivity">

<Button
    android:layout_width="180dp"
    android:layout_height="60dp"
    android:id="@+id/connect_id"
    android:textSize="30dp"
    android:text="连接蓝牙"/>


    <Button
        android:layout_width="180dp"
        android:layout_height="60dp"
        android:id="@+id/led_id"
        android:textSize="30dp"
        android:text="开灯"/>


</LinearLayout>

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
package myapplication.lum.com.ledcontrol;

import android.bluetooth.BluetoothAdapter;
import android.bluetooth.BluetoothDevice;
import android.bluetooth.BluetoothManager;
import android.bluetooth.BluetoothSocket;
import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.Intent;
import android.content.IntentFilter;
import android.provider.Settings;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.util.Log;
import android.view.View;
import android.widget.Button;
import android.widget.Toast;

import java.io.IOException;
import java.io.OutputStream;
import java.lang.reflect.Method;
import java.util.List;
import java.util.Set;
import java.util.UUID;

import static android.bluetooth.BluetoothProfile.GATT_SERVER;


public class MainActivity extends AppCompatActivity implements View.OnClickListener {

    private String TAG = "LUM: ";

    private Button buttonConnect, buttonLed;
    private BluetoothAdapter mbluetoothAdapter;
    private String bluetoothDeviceMacAddress = "44:44:1B:0F:0D:B8"; //Bluetooth module physical address  
    private BluetoothDevice bluetoothDevice = null; // Connected Bluetooth device
    private BluetoothSocket btSocket = null; // Bluetooth communication socket
    private final static String MY_UUID = "00001101-0000-1000-8000-00805F9B34FB"; // SPP service UUID number
    private final static int RESULT_CODE = 100;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        initView();
    }

    private void initView() {
        mbluetoothAdapter = BluetoothAdapter.getDefaultAdapter(); //get the default bluetooth adapter
        buttonConnect = (Button) findViewById(R.id.connect_id);
        buttonLed = (Button) findViewById(R.id.led_id);

        buttonConnect.setOnClickListener(this);
        buttonLed.setOnClickListener(this);

        IntentFilter filter = new IntentFilter();
        filter.addAction(BluetoothDevice.ACTION_FOUND);  //Bluetooth search
        filter.addAction(BluetoothDevice.ACTION_ACL_CONNECTED);
        filter.addAction(BluetoothDevice.ACTION_ACL_DISCONNECTED);
        registerReceiver(mReceiver, filter);

    }

    @Override
    public void onClick(View view) {
        switch (view.getId()) {
            case R.id.connect_id:
                Log.i(TAG, "check link");
                //Jump directly to the Bluetooth settings interface
                if ("连接蓝牙".equals(buttonConnect.getText().toString())) {
                    if (!mbluetoothAdapter.isEnabled()){
                        startActivityForResult(new Intent(Settings.ACTION_BLUETOOTH_SETTINGS), RESULT_CODE);
                    } else {
                        connectBtSocket();
                    }

                } else {
                    disconnect();
                }
                break;
            case R.id.led_id:
                Log.i(TAG, "led control");
                if (btSocket != null && btSocket.isConnected()) {
                    if ("开灯".equals(buttonLed.getText().toString())) {
                        send(1);
                        buttonLed.setText("关灯");
                    } else {
                        send(2);
                        buttonLed.setText("开灯");
                    }
                }
        }

    }

    public void send(int command) {
        try {
            if (btSocket != null) {
                OutputStream os = btSocket.getOutputStream();   //Bluetooth connection output stream
                os.write(command);
            } else {
                Toast.makeText(this, "请先连接蓝牙", Toast.LENGTH_SHORT).show();
            }

        } catch (IOException e) {
        }
    }

    public void onActivityResult(int requestCode, int resultCode, Intent data) {
        if (requestCode == RESULT_CODE) {
            connectBtSocket();
        }
    }

    private void connectBtSocket() {
        // Get the handle of the Bluetooth device
        bluetoothDevice = mbluetoothAdapter.getRemoteDevice(bluetoothDeviceMacAddress);
        //Turn off scanning before pairing
        if (mbluetoothAdapter.isDiscovering()) {
            mbluetoothAdapter.cancelDiscovery();
        }
        // Get the connected socket
        try {
            btSocket = bluetoothDevice.createRfcommSocketToServiceRecord(UUID
                    .fromString(MY_UUID));
            btSocket.connect();  //Connection socket
        } catch (IOException e) {
            Toast.makeText(this, "Connection failed, can't get Socket！" + e, Toast.LENGTH_SHORT).show();
            e.printStackTrace();
        }

        if (btSocket.isConnected()) {
            Log.i(TAG, "socket connected");
            Toast.makeText(this, "connect success", Toast.LENGTH_SHORT).show();
            buttonConnect.setText("蓝牙已连接");
        } else {
            Log.i(TAG, "socket didn't connected");
            Toast.makeText(this, "connect failed", Toast.LENGTH_SHORT).show();
        }
    }


    private void disconnect() {
        try {
            if (btSocket != null) {
                btSocket.close();
            }
        } catch (IOException e) {
        }
        buttonConnect.setText("连接蓝牙");
    }

    // Help us find the physical address of the Bluetooth module that needs to be connected
    private final BroadcastReceiver mReceiver = new BroadcastReceiver() {
        @Override
        public void onReceive(Context context, Intent intent) {
            String action = intent.getAction();
            if (BluetoothDevice.ACTION_FOUND.equals(action)) {
                BluetoothDevice device = intent.getParcelableExtra(BluetoothDevice.EXTRA_DEVICE);
                Log.i(TAG, "Searched Bluetooth device;  device name: " + device.getName() + "  device address: " + device.getAddress());
            }
            if (BluetoothDevice.ACTION_ACL_CONNECTED.equals(action)) {
                Log.i(TAG, "ACTION_ACL_CONNECTED");
                if (btSocket.isConnected()) {
                    buttonConnect.setText("蓝牙已连接");
                }
            }
            if (BluetoothDevice.ACTION_ACL_DISCONNECTED.equals(action)) {
                Log.i(TAG, "ACTION_ACL_CONNECTED");
                if (btSocket.isConnected()) {
                    buttonConnect.setText("连接蓝牙");
                }
            }
        }
    };

    public void onDestroy() {
        super.onDestroy();
        unregisterReceiver(mReceiver);
        Log.i(TAG, "Unregister");
    }
}

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58

#include <reg52.h> //51头文件

sbit LED1 = P1^0; //位定义 LED1硬件接口
void delay(unsigned int z)//毫秒级延时
{
	unsigned int x,y;
	for(x = z; x > 0; x--)
		for(y = 114; y > 0 ; y--);
}	


 /******************************************************************/
/* 串口中断程序*/
/******************************************************************/
void UART_SER () interrupt 4
{
	unsigned int n; 	//定义临时变量

	if(RI) 		//判断是接收中断产生
	{
		RI=0; 	//标志位清零
		n=SBUF; //读入缓冲区的值

		switch(n)
		{
			case 1:	LED1 = 0;	break;	//亮灯
			case 2:	LED1 = 1;	break;	//灭灯
		}
	}

}



//蓝牙初始化
void boothint(void)
{
   
   	SCON = 0x50; 	// SCON: 模式1, 8-bit UART, 使能接收 
	TMOD |= 0x20;
	TH1=0xfd; 		//波特率9600 初值
	TL1=0xfd;
	TR1= 1;
	EA = 1;	    //开总中断
	ES= 1; 		//打开串口中断


}
void main()
{
	boothint();
	while(1)
	{

	}
}