序号 数据定义 数据类型 备注 1 帧序号 unsigned int 每一帧数据+1,单独计数 2 系统状态 unsigned char 分别为 0 1 2 3 4 5 10,见表2 3 寻北进度 unsigned char 1~100 4 航向角 float 0~360° 5 俯仰角 float -90°~90° 6 横滚角 float -180°~180° 7 实时更新数据 float 帧序号进行除以10取余计算,见表3 数据举例: 1,10,0,10.56,0.1234,0.23456,75.0 回执:APP端在接到一帧数据后,需要发送回执消息:80 80 01 00 03 63 30,下位机如果连续10次未收到回执则认为蓝牙断开。 根据协议写一个类用androidstudio
时间: 2024-03-10 16:44:01 浏览: 121
下面是一个基于 Android Studio 的实现示例:
```java
import android.bluetooth.BluetoothAdapter;
import android.bluetooth.BluetoothDevice;
import android.bluetooth.BluetoothSocket;
import android.os.Bundle;
import android.os.Handler;
import android.os.Message;
import android.support.v7.app.AppCompatActivity;
import android.util.Log;
import android.widget.TextView;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.util.UUID;
public class MainActivity extends AppCompatActivity {
private static final String TAG = "MainActivity";
private static final UUID MY_UUID = UUID.fromString("00001101-0000-1000-8000-00805F9B34FB"); // 蓝牙串口通信协议UUID
private static final String DEVICE_ADDRESS = "00:11:22:33:44:55"; // 蓝牙模块的MAC地址
private Handler mHandler;
private BluetoothSocket mSocket;
private InputStream mInputStream;
private OutputStream mOutputStream;
private TextView mFrameNumberView;
private TextView mSystemStateView;
private TextView mHeadingAngleView;
private TextView mPitchAngleView;
private TextView mRollAngleView;
private TextView mRealtimeDataView;
private int mFrameNumber;
private int mSystemState;
private int mCompassProgress;
private float mHeadingAngle;
private float mPitchAngle;
private float mRollAngle;
private float mRealtimeData;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
// 初始化UI控件
mFrameNumberView = findViewById(R.id.frame_number);
mSystemStateView = findViewById(R.id.system_state);
mHeadingAngleView = findViewById(R.id.heading_angle);
mPitchAngleView = findViewById(R.id.pitch_angle);
mRollAngleView = findViewById(R.id.roll_angle);
mRealtimeDataView = findViewById(R.id.realtime_data);
// 初始化蓝牙连接
connectBluetooth();
// 初始化Handler
mHandler = new Handler() {
@Override
public void handleMessage(Message msg) {
switch (msg.what) {
case 1:
// 更新UI
updateUI();
break;
}
}
};
}
private void connectBluetooth() {
BluetoothAdapter adapter = BluetoothAdapter.getDefaultAdapter();
BluetoothDevice device = adapter.getRemoteDevice(DEVICE_ADDRESS);
try {
mSocket = device.createRfcommSocketToServiceRecord(MY_UUID);
mSocket.connect();
mInputStream = mSocket.getInputStream();
mOutputStream = mSocket.getOutputStream();
} catch (IOException e) {
Log.e(TAG, "Failed to connect to device", e);
}
new Thread(new Runnable() {
@Override
public void run() {
while (true) {
try {
// 读取数据
byte[] buffer = new byte[1024];
int len = mInputStream.read(buffer);
// 解析数据
String data = new String(buffer, 0, len);
String[] items = data.split(",");
if (items.length == 7) {
mFrameNumber = Integer.parseInt(items[0]);
mSystemState = Integer.parseInt(items[1]);
mCompassProgress = Integer.parseInt(items[2]);
mHeadingAngle = Float.parseFloat(items[3]);
mPitchAngle = Float.parseFloat(items[4]);
mRollAngle = Float.parseFloat(items[5]);
mRealtimeData = Float.parseFloat(items[6]);
// 发送消息更新UI
mHandler.sendEmptyMessage(1);
}
} catch (IOException e) {
Log.e(TAG, "Failed to read data", e);
break;
}
}
}
}).start();
}
private void updateUI() {
mFrameNumberView.setText(String.valueOf(mFrameNumber));
mSystemStateView.setText(String.valueOf(mSystemState));
mHeadingAngleView.setText(String.format("%.2f", mHeadingAngle));
mPitchAngleView.setText(String.format("%.2f", mPitchAngle));
mRollAngleView.setText(String.format("%.2f", mRollAngle));
mRealtimeDataView.setText(String.format("%.2f", mRealtimeData));
}
@Override
protected void onDestroy() {
super.onDestroy();
// 关闭蓝牙连接
try {
mSocket.close();
} catch (IOException e) {
Log.e(TAG, "Failed to close socket", e);
}
}
}
```
注意,这只是一个示例代码,实际情况下你需要根据你的具体需求进行修改。
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