基于单片机设计的风力发电机转速控制系统.zip（毕设/课设/竞赛/实训/项目开发）

package com.yyf.wpc; import android.bluetooth.BluetoothGatt; import android.os.Bundle; import android.support.v7.app.AppCompatActivity; import android.util.Log; import android.widget.CompoundButton; import android.widget.TextView; import com.blankj.utilcode.util.ToastUtils; import com.clj.fastble.BleManager; import com.clj.fastble.callback.BleGattCallback; import com.clj.fastble.callback.BleNotifyCallback; import com.clj.fastble.callback.BleWriteCallback; import com.clj.fastble.data.BleDevice; import com.clj.fastble.exception.BleException; import com.kyleduo.switchbutton.SwitchButton; import java.util.ArrayList; public class MainActivity extends AppCompatActivity { public static final String TAG = MainActivity.class.getSimpleName(); //蓝牙服务uuid public static final String SERVICE_UUID = "49535343-fe7d-4ae5-8fa9-9fafd205e455"; //蓝牙服务数据接收UUID public static final String CHAR_NOTIFY_UUID = "49535343-1E4D-4BD9-BA61-23C647249616"; //蓝牙服务数据写入UUID public static final String CHAR_WRITE_UUID = "49535343-8841-43F4-A8D4-ECBE34729BB3"; //蓝牙设备Mac public static final String MAC = "00:0C:BF:15:62:A3"; //设备连接开关 private SwitchButton mDevicesSwitch; //风力发电机状态开关 private SwitchButton mStatusSwitch; //转速显示 private TextView mTextView; //蓝牙设备实例 private BleDevice mCurrentBleDevice; //蓝牙是否连接 private boolean isConnect = false; //分钟转速 private int turns = 0; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); mDevicesSwitch = findViewById(R.id.device_switch); mStatusSwitch = findViewById(R.id.status_switch); mTextView = findViewById(R.id.info_show); //判断手机蓝牙是否开启 if (!BleManager.getInstance().isBlueEnable()) { //开启手机蓝牙 BleManager.getInstance().enableBluetooth(); } //风力放电机状态控制按钮 mStatusSwitch.setOnCheckedChangeListener(new CompoundButton.OnCheckedChangeListener() { @Override public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) { //设备没有链接是无法控制发电机状态 if (!isConnect) { showMsg("请先连接设备！"); mStatusSwitch.setChecked(false); return; } if (isChecked) { //过速关闭风力发电机 writeByteData(intToByteArray(2)); } else { //正常情况 writeByteData(intToByteArray(1)); } } }); //设备连接按钮 mDevicesSwitch.setOnCheckedChangeListener(new CompoundButton.OnCheckedChangeListener() { @Override public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) { if (isChecked) { connectDevices(MAC); } else { BleManager.getInstance().disconnect(mCurrentBleDevice); } } }); } /** * 连接设备 * * @param mac 设置mac */ private void connectDevices(String mac) { BleManager.getInstance().connect(mac, new BleGattCallback() { @Override public void onStartConnect() { // 开始连接 showMsg("设备连接中..."); } @Override public void onConnectFail(BleDevice bleDevice, BleException exception) { // 连接失败 showMsg("设备连接失败！"); isConnect = false; } @Override public void onConnectSuccess(BleDevice bleDevice, BluetoothGatt gatt, int status) { // 连接成功，BleDevice即为所连接的BLE设备 showMsg("设备连接成功！"); mCurrentBleDevice = bleDevice; isConnect = true; //订阅通知 subscribeNotify(); } @Override public void onDisConnected(boolean isActiveDisConnected, BleDevice bleDevice, BluetoothGatt gatt, int status) { // 连接中断，isActiveDisConnected表示是否是主动调用了断开连接方法 showMsg("设备连接中断！"); } }); } /** * 连接设备 接收风力发电机的转速 单位:转/分钟 */ private void subscribeNotify() { BleManager.getInstance().notify( mCurrentBleDevice, SERVICE_UUID, CHAR_NOTIFY_UUID, new BleNotifyCallback() { @Override public void onNotifySuccess() { // 打开通知操作成功 showMsg("准备接收数据"); } @Override public void onNotifyFailure(BleException exception) { Log.e(TAG, "onNotifyFailure: " + exception.toString()); // 打开通知操作失败 showMsg(exception.toString()); } @Override public void onCharacteristicChanged(byte[] data) { // 打开通知后，设备发过来的数据将在这里出现 Log.e(TAG, "onCharacteristicChanged: " + data[0]); turns = data[0]; mTextView.setText(data[0] + "转/秒"); //======根据转速自动控制风力发电机工作状态======== if (turns > 10) { //如果大于40/min视为过速状态，关闭指示灯 writeByteData(intToByteArray(2)); mStatusSwitch.setChecked(true); } } }); } /** * 写数据，控制风力发电机的工作状态 0开 1关 * * @param data */ private void writeByteData(byte[] data) { BleManager.getInstance().write( mCurrentBleDevice, SERVICE_UUID, CHAR_WRITE_UUID, data, new BleWriteCallback() { @Override public void onWriteSuccess(int current, int total, byte[] justWrite) { } @Override public void onWriteFailure(BleException exception) { showMsg(exception.toString()); } }); } /** * int到byte[] 由高位到低位 * * @param i 需要转换为byte数组的整行值。 * @return byte数组 */ private byte[] intToByteArray(int i) { byte[] result = new byte[1]; result[0] = (byte) (i & 0xFF); return result; } private void showMsg(String s) { ToastUtils.showLong(s); } @Override protected void onDestroy() { super.onDestroy(); BleManager.getInstance().disconnectAllDevice(); } }