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IOS Ble蓝牙开发实现方法

转载 作者：qq735679552 更新时间：2022-09-28 22:32:09 25 4
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本篇博文阐述如何开发Ble蓝牙。在蓝牙中的一些常见服务，扫描，以及链接； 。

  • 主蓝牙类文件.h
  • 主蓝牙类文件.m
  • UUID文件
  • 蓝牙列表展示的文件

一：引入Ble蓝牙的框架<CoreBluetooth/CoreBluetooth.h> 。

BuleHelp.h 。

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#import <Foundation/Foundation.h>
//导入蓝牙框架
#import <CoreBluetooth/CoreBluetooth.h>
#import "DeviceModel.h"
#import "Constants.h"
#import "CommonUserDefaults.h"
#import "CommonUtil.h"
#import "TempDB.h"
 
#define COMMAND_PACKET_MIN_SIZE 7
 
@interface BlueHelp : NSObject
 
//蓝牙的设备搜索显示在列表中
@property (nonatomic, strong) NSMutableArray <CBPeripheral*>*periperals;
 
//连接peripheral
@property(nonatomic,strong) CBPeripheral *peripheral;
 
//连接peripheral
@property(nonatomic,strong) CBPeripheral *selectperipheral;
 
//中心管理者
@property (nonatomic, strong) CBCentralManager *centerManager;
 
@property (nonatomic,strong) DeviceModel *deviceModel;
 
//设备列表
@property (nonatomic,strong) NSMutableArray *deviceList;
 
@property (nonatomic,strong) NSMutableArray *commandArray;
//是否进行ota升级
@property (nonatomic) BOOL isOta;
 
@property (nonatomic) BOOL isWritePacketDataSuccess;
 
@property (strong,nonatomic) NSString * checkSumType;
 
/*!
  * @property isApplicationValid
  *
  * @discussion flag used to check whether the application writing is success
  *
  */
@property (nonatomic) BOOL isApplicationValid;
/*!
  * @property checkSum
  *
  * @discussion checkSum received from the device for writing a single row
  *
  */
@property (assign) uint8_t checkSum;
 
/*!
  * @property startRowNumber
  *
  * @discussion Device flash start row number
  *
  */
@property (nonatomic) int startRowNumber;
 
/*!
  * @property endRowNumber
  *
  * @discussion Device flash end row number
  *
  */
@property (nonatomic) int endRowNumber;
 
/*!
  * @property siliconIDString
  *
  * @discussion siliconID from the device response
  *
  */
@property (strong,nonatomic) NSString *siliconIDString;
/*!
  * @property siliconRevString
  *
  * @discussion silicon rev from the device response
  *
  */
@property (strong,nonatomic) NSString *siliconRevString;
 
 
//是否发送数据
@property (nonatomic) BOOL isSendData;
 
@property (strong,nonatomic) CommonUtil *commonUtil;
 
@property (strong,nonatomic) TempDB *tempDB;
 
@property (strong,nonatomic) NSDate *currentDate;
 
//时间格式化
@property(strong,nonatomic) NSDateFormatter *dateformatter;
 
@property(strong,nonatomic) NSString *deviceName;
 
//@property (nonatomic,strong) NSUserDefaults *userDefaults;
 
@property (nonatomic,strong) CommonUserDefaults *userDefaults;
//发送温度数据
@property (nonatomic,strong) CBCharacteristic *sendtempcharateristic;
//发送OTA数据
@property (nonatomic,strong) CBCharacteristic *sendotacharateristic;
//高／低温度数据
//@property (nonatomic,strong) CBCharacteristic *sendhighalarmcharateristic;
//
//@property (nonatomic,strong) CBCharacteristic *sendlowalarmcharateristic;
//ota
@property (nonatomic,strong) CBCharacteristic *senddfucharateristic;
//发送字符串'CR'清除机子上的最大值(3个字节)
@property (nonatomic,strong) CBCharacteristic *senddcrstrateristic;
//发送字符串'PD'机子关机(3个字节)
@property (nonatomic,strong) CBCharacteristic *senddoutstrateristic;
//静音
@property (strong,nonatomic) CBCharacteristic *sendmutealarmcharateristic;
//calset
@property(strong,nonatomic) CBCharacteristic *sendcalsetcharateristic;
//intervaltime
@property(strong,nonatomic) CBCharacteristic *sendintervaltimecharateristic;
//alarmswitch
@property(strong,nonatomic) CBCharacteristic *sendalarmswitchcharateristic;
//tempunit
@property(strong,nonatomic) CBCharacteristic *sendtempunitcharateristic;
 
@property(strong,nonatomic) CBCharacteristic *sendlowalarmswitchcharateristic;
 
///<===============方法区块=======================>
+ (id)sharedManager;
 
-(NSMutableArray *)getDeviceList;
 
-(NSMutableArray *)getPeriperalList;
 
-( void )startScan;
//连接蓝牙
-( void )contentBlue:( int ) row;
//断开蓝牙
-( void )disContentBle;
 
//断开ota的蓝牙连接
-( void )disContentOtaBle;
 
//温度符号
-( void )writeTempUnit:(NSString *)value;
 
//写入报警开关
-( void )writeAlarmSwitch:(NSString *)value;
 
 
//写入mute alarm
-( void )writeMuteAlarm:(NSString *)value;
 
//写入CR CLERVULE
-( void )writeClearCR:(NSString *)value;
 
 
//写入interval time
-( void )writeIntervalTime:(NSString *)value;
 
//写入cal set
-( void )writeCalSet:(NSString *)value;
 
//写入设备的开关按钮
-( void )writeBluePD:(NSString *)value;
 
//写入低温报警
//-(void)writeLowAlarm:(NSString *)value;
//
////写入高温报警
//-(void)writeHighAlarm:(NSString *)value;
 
//OTA固件升级 又称为DFU
-( void )writeUpdateOTA:(NSString*)value;
 
-( void )writeBlueOTA:(NSString *)value;
 
-( void )wirteBlueOTAData:(NSData *)value;
 
-( void )writeLowAlarmSwitch:(NSString *)value;
 
-( void ) discoverCharacteristicsWithCompletionHandler:( void (^) ( BOOL success, NSError *error)) handler;
 
-( void )updateValueForCharacteristicWithCompletionHandler:( void (^) ( BOOL success,id command,NSError *error)) handler;
 
-( void ) stopUpdate;
 
-( void ) setCheckSumType:(NSString *) type;
 
-(NSData *) createCommandPacketWithCommand:(uint8_t)commandCode dataLength:(unsigned short )dataLength data:(NSDictionary *)packetDataDictionary;
 
-( void ) writeValueToCharacteristicWithData:(NSData *)data bootLoaderCommandCode:(unsigned short )commandCode;
 
/*
  * 停止扫描
  */
-( void )stopScan;
 
//是否是第一次连接设备
@property(assign,nonatomic) BOOL isconnected;
 
//当前的时间
@property(nonatomic,assign) long currentTime;
 
@property(nonatomic,strong) NSString *macAddre;
 
@property(nonatomic,strong) NSString *macName;
 
-( void )disMainOtaBle;
 
@end

BuleHelp.m 。

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//程序运行后,会自动调用的检查蓝牙的方法 并扫描蓝牙的方法
- ( void )centralManagerDidUpdateState:(CBCentralManager *)central{
  if ([central state] == CBCentralManagerStatePoweredOff) {
   NSLog(@ "CoreBluetooth BLE hardware is powered off" );
  }
  else if ([central state] == CBCentralManagerStatePoweredOn) {
   NSLog(@ "CoreBluetooth BLE hardware is powered on and ready" );
   [self startScan];
  }
  else if ([central state] == CBCentralManagerStateUnauthorized) {
   NSLog(@ "CoreBluetooth BLE state is unauthorized" );
  }
  else if ([central state] == CBCentralManagerStateUnknown) {
   NSLog(@ "CoreBluetooth BLE state is unknown" );
  }
  else if ([central state] == CBCentralManagerStateUnsupported) {
   NSLog(@ "CoreBluetooth BLE hardware is unsupported on this platform" );
  }
}
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/*
  * 程序运行的时候开始扫描
  */
-( void )startScan{
  _periperals = [[NSMutableArray alloc] init];
  _deviceList = [[NSMutableArray alloc] init];
  //2.利用中心设备扫描外部设备
  [_centerManager scanForPeripheralsWithServices:nil options:nil];
}
 
/*
  * 停止扫描
  */
-( void )stopScan{
  [_centerManager stopScan];
}
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/*
  * 设备中可以包含 Device addre地址 放在 key:kCBAdvDataManufacturerData中既可以得到
  * 1.硬件开发工程师 把地址写入到设备的厂家信息中。
  */
 
- ( void )centralManager:(CBCentralManager *)central didDiscoverPeripheral:(CBPeripheral *)peripheral advertisementData:(NSDictionary<NSString *,id> *)advertisementData RSSI:(NSNumber *)RSS{
  //判断如果数组中不包含当前扫描到的外部设备才保存
  if (![_periperals containsObject:peripheral]){
   //包扣3种设备 都需要去搜索
   if ([peripheral.name containsString:@ "TMW012BT" ]||[peripheral.name containsString:@ "OTA" ]){
    NSLog(@ "DATA: %@" , advertisementData);
    NSArray *keys = [advertisementData allKeys];
    for ( int i = 0; i < [keys count]; ++i) {
     id key = [keys objectAtIndex: i];
     NSString *keyName = (NSString *) key;
     NSData *value = [advertisementData objectForKey: key];
    
     if ([keyName isEqualToString:@ "kCBAdvDataManufacturerData" ]){
      NSLog(@ "value is %@" ,value);
      NSString *result = [self convertDataToHexStr:value];
      NSLog(@ "reslut is %@" ,result);
      if (result!=nil&&result.length>4){
       NSString *d = [result substringFromIndex:4];
       NSLog(@ "D IS %@" ,d);
       // 小写
       //NSString *lower = [test lowercaseString];
       // 大写
       NSString *upper = [d uppercaseString];
       _macAddre = [NSString stringWithFormat:@ "S/N:%@" ,upper];
      }
     }
    
     if ([keyName isEqualToString:@ "kCBAdvDataLocalName" ]){
      NSString *aStr= (NSString*)value;
      NSLog(@ "astr is %@" ,aStr);
      _macName = aStr;
     }
    }
   
    _deviceModel = [DeviceModel new ];
    _deviceModel.deviceName = _macName;
    //蓝牙地址
    _deviceModel.deviceAddre = _macAddre;
   
    int rssi = [RSS intValue];
    NSString *range = [NSString stringWithFormat:@ "%d" ,rssi];
    NSString *rs = [NSString stringWithFormat:@ "RSSI %@dBm" ,range];
    //添加到里面
    [self.periperals addObject:peripheral];
    _deviceModel.deviceRssi = rs;
    [_deviceList addObject:_deviceModel];
   }
  }
}
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//解析广播里面的数据
-( void )getAdvertisementData:(NSDictionary<NSString *,id> *) advertisementData{
  NSArray *keys = [advertisementData allKeys];
  for ( int i = 0; i < [keys count]; ++i) {
   id key = [keys objectAtIndex: i];
   NSString *keyName = (NSString *) key;
   NSObject *value = [advertisementData objectForKey: key];
  
   if ([keyName isEqualToString:@ "kCBAdvDataManufacturerData" ]){
    printf ( " key: %s\n" , [keyName cStringUsingEncoding: NSUTF8StringEncoding]);
    NSString *values = (NSString *) value;
    NSLog(@ "values is %@" ,values);
   }
  }
}
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/*
  * 连接蓝牙设备给外部调用的方法
  * 传入的是相对应的行数
  */
-( void )contentBlue:( int ) row{
  [_centerManager connectPeripheral:_periperals[row] options:nil];
}
 
 
-( void )disContentBle{
  //关键的断开蓝牙 通知也要停止掉
  if ((_peripheral!=nil && _sendtempcharateristic!=nil)){
   [_peripheral setNotifyValue:NO forCharacteristic:_sendtempcharateristic];
   [self disconnectPeripheral:_peripheral];
  }
}
 
 
/*
  * 断开ota的 连接
  */
-( void )disContentOtaBle{
  if (_peripheral!=nil && _sendotacharateristic!=nil){
   [_peripheral setNotifyValue:NO forCharacteristic:_sendotacharateristic];
   [self disconnectPeripheral:_peripheral];
  }
}
 
-( void )disMainOtaBle{
  if (_peripheral!=nil){
   [self disconnectPeripheral:_peripheral];
  }
}
 
- ( void ) disconnectPeripheral:(CBPeripheral*)peripheral
{
  [_centerManager cancelPeripheralConnection:peripheral];
}
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//连接成功
- ( void )centralManager:(CBCentralManager *)central didConnectPeripheral:(CBPeripheral *)peripheral{
  NSLog(@ "连接成功" );
  if (peripheral!=nil){
   //停止扫描 这个用于自动连接的时候
   [_centerManager stopScan];
   //设备名称
   _deviceName = peripheral.name;
  
   _selectperipheral = peripheral;
  
   peripheral.delegate = self;
   //再去扫描服务
   [peripheral discoverServices:nil];
  
  }
}
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//连接失败
- ( void )centralManager:(CBCentralManager *)central didFailToConnectPeripheral:(CBPeripheral *)peripheral error:(nullable NSError *)error{
  NSLog(@ "连接失败,失败原因:%@" ,error);
  NSString *disContentBlue = @ "discontentblue" ;
  NSDictionary *blueDiscontent = [NSDictionary dictionaryWithObject:disContentBlue forKey:@ "disconnect" ];
  //发送广播 连接失败
  [[NSNotificationCenter defaultCenter] postNotificationName:@ "disNofiction" object:nil userInfo:blueDiscontent];
}
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//断开连接
- ( void )centralManager:(CBCentralManager *)central didDisconnectPeripheral:(CBPeripheral *)peripheral error:(NSError *)error{
  NSLog(@ "断开连接" );
  NSString *disContentBlue = @ "discontentblue" ;
  //_blueiscon = @"Disconnect";
  NSDictionary *blueDiscontent = [NSDictionary dictionaryWithObject:disContentBlue forKey:@ "disconnect" ];
  //发送广播 连接失败
  [[NSNotificationCenter defaultCenter] postNotificationName:@ "disNofiction" object:nil userInfo:blueDiscontent];
}
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//只要扫描到服务就会调用,其中的外设就是服务所在的外设
- ( void )peripheral:(CBPeripheral *)peripheral didDiscoverServices:(NSError *)error{
  if (error){
   NSLog(@ "扫描服务出现错误,错误原因:%@" ,error);
  } else {
   //获取外设中所扫描到的服务
   for (CBService *service in peripheral.services){
    //拿到需要扫描的服务,例如FFF0 比如打印温度数据
    //把所有的service打印出来
    //从需要的服务中查找需要的特征
    //从peripheral的services中扫描特征
    [peripheral discoverCharacteristics:nil forService:service];
   }
  }
}
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//只要扫描到特征就会调用,其中的外设和服务就是特征所在的外设和服务
- ( void )peripheral:(CBPeripheral *)peripheral didDiscoverCharacteristicsForService:(nonnull CBService *)service error:(nullable NSError *)error{
  if (error){
   NSLog(@ "扫描特征出现错误,错误原因:%@" ,error);
  } else {
   //遍历特征,拿到需要的特征进行处理
   for (CBCharacteristic *characteristic in service.characteristics){
    NSLog(@ "characteristic is %@" ,characteristic.UUID);
    //如果是温度数据处理
    if ([characteristic.UUID isEqual:BOOT_TEMPVALUE_UUID]){
     //将全部的特征信息打印出来
     _isconnected = true ;
     _peripheral = peripheral;
     _sendtempcharateristic = characteristic;
     [peripheral setNotifyValue:YES forCharacteristic:characteristic];
    }
    //如果是ota进行ota升级
    else if ([characteristic.UUID isEqual:BOOT_OTA_WIRTE_UUID]){
     _peripheral = peripheral;
     _sendotacharateristic = characteristic;
     //设置通知
     [peripheral setNotifyValue:YES forCharacteristic:characteristic];
     _isOta = TRUE;
     [_userDefaults saveOta:_isOta];
     //[_ setBool:_isOta forKey:@"isOTA"];
     NSString *s = @ "OTA" ;
     NSDictionary *tempOta = [NSDictionary dictionaryWithObject:s forKey:@ "ota" ];
     [[NSNotificationCenter defaultCenter] postNotificationName:@ "tempOTA" object:nil userInfo:tempOta];
    }
    //CAL
    else if ([characteristic.UUID isEqual:BOOT_CAL_UUID]){
     _sendcalsetcharateristic = characteristic;
     [peripheral setNotifyValue:YES forCharacteristic:characteristic];
    }
    //interval time
    else if ([characteristic.UUID isEqual:BOOT_INTERVALTIME_UUID]){
     _sendintervaltimecharateristic = characteristic;
     [peripheral setNotifyValue:YES forCharacteristic:characteristic];
    }
    //Tempunit
    else if ([characteristic.UUID isEqual:BOOT_TEMPUNIT_UUID]){
     _sendtempunitcharateristic = characteristic;
     [peripheral setNotifyValue:YES forCharacteristic:characteristic];
    }
   
    //DFU
    else if ([characteristic.UUID isEqual:BOOT_DFU_UUID]){
     _senddfucharateristic = characteristic;
     [peripheral setNotifyValue:YES forCharacteristic:characteristic];
    }
    //发送字符串'CR'清除机子上的最大值(3个字节)
    else if ([characteristic.UUID isEqual:BOOT_CRSTRING_UUID]){
     _senddcrstrateristic = characteristic;
     [peripheral setNotifyValue:YES forCharacteristic:characteristic];
    }
    //发送字符串'PD'机子关机(3个字节)
    else if ([characteristic.UUID isEqual:BOOT_OUTSTRING_UUID]){
     _senddoutstrateristic = characteristic;
     [peripheral setNotifyValue:YES forCharacteristic:characteristic];
    }
    else {
    
    }
   }
  }
}
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/*
  设置通知
  */
-( void )notifyCharacteristic:(CBPeripheral *)peripheral
     characteristic:(CBCharacteristic *)characteristic{
  [peripheral setNotifyValue:YES forCharacteristic:characteristic];
  [_centerManager stopScan];
}
 
/*
  取消通知
  */
-( void )cancelNotifyCharacteristic:(CBPeripheral *)peripheral
      characteristic:(CBCharacteristic *)characteristic{
  [peripheral setNotifyValue:NO forCharacteristic:characteristic];
}
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/*
  接收数据解析
  */
- ( void )peripheral:(CBPeripheral *)peripheral didUpdateValueForCharacteristic:(CBCharacteristic *)characteristic error:(NSError *)error{
  //是否为Ota
  if (!self.isSendOta){
   if (self.readtempcharater == characteristic){
    NSString *tmpData = [self.cmUtil getTempTMWData:characteristic];
    if (tmpData!=nil){
     //开始处理数据
     NSArray *data = [tmpData componentsSeparatedByString:@ "," ];
     TmpModel *tp = [[TmpModel alloc] init];
     tp.tmp = data[0];
     tp.max = data[1];
     tp.unit = data[2];
     //电量
     tp.bat = data[3];
    
     NSDictionary *tempDict = [NSDictionary dictionaryWithObject:tp forKey:@ "tempData" ];
     [[NSNotificationCenter defaultCenter] postNotificationName:@ "tempNofiction" object:nil userInfo:tempDict];
     if ([tp.bat isEqual:@ "1" ]){
      //低电量广播
      NSDictionary *LowDict = [NSDictionary dictionaryWithObject:tp forKey:@ "lowData" ];
      [[NSNotificationCenter defaultCenter] postNotificationName:@ "lowNofiction" object:nil userInfo:LowDict];
     }
    }
   }
  }
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//======================写入数据区块========================//
 
/*
  写入发送时间
  */
-( void )writeIntervalTime:(NSString *)value periperalData:(CBPeripheral*)periperal{
  if (value!=nil&&periperal!=nil&&self.sendtimecharater!=nil){
   [self writeData:value forCharacteristic:self.sendtimecharater periperalData:periperal];
  }
}
 
/*
  写入温度单位
  */
-( void )writeTmpUnit:(NSString*)value periperalData:(CBPeripheral*)periperal{
  if (value!=nil&&periperal!=nil&&self.sendunitcharater!=nil){
   [self writeData:value forCharacteristic:self.sendunitcharater periperalData:periperal];
  }
}
 
/*
  写入Cal值
  */
-( void )writeCalValue:(NSString *)value periperalData:(CBPeripheral*)periperal{
  if (value!=nil&&periperal!=nil&&self.sendcalcharater!=nil){
   [self writeData:value forCharacteristic:self.sendcalcharater periperalData:periperal];
  }
}
 
 
/*
  发送Ota使得设备进入Ota
  */
-( void )writeDfuValue:(NSString *)value periperalData:(CBPeripheral*)periperal{
  if (value!=nil&&periperal!=nil&&self.senddfucharater!=nil){
   [self writeData:value forCharacteristic:self.senddfucharater periperalData:periperal];
  }
}
 
/*
  发送Max Temp实现清零选项
  */
-( void )writeClearValue:(NSString *)value periperalData:(CBPeripheral*)periperal{
  if (value!=nil&&periperal!=nil&&self.sendclearcharater!=nil){
   [self writeData:value forCharacteristic:self.sendclearcharater periperalData:periperal];
  }
}
 
/*
  发送关机选项实现远程开关机
  */
-( void )writeCloseValue:(NSString *)value periperalData:(CBPeripheral*)periperal{
  if (value!=nil&&periperal!=nil&&self.sendclosecharater!=nil){
   [self writeData:value forCharacteristic:self.sendclosecharater periperalData:periperal];
  }
}
 
 
/*
  所有写入的数据处理
  */
-( void )writeData:(NSString *)value forCharacteristic:(CBCharacteristic *)characteristic periperalData:(CBPeripheral*)periperal{
  NSData *data = [value dataUsingEncoding:NSUTF8StringEncoding];
  if (characteristic.properties & CBCharacteristicPropertyWriteWithoutResponse)
  {
   [periperal writeValue:data forCharacteristic:characteristic type:CBCharacteristicWriteWithoutResponse];
  } else
  {
   [periperal writeValue:data forCharacteristic:characteristic type:CBCharacteristicWriteWithResponse];
  }
}

此篇文章阐述到这，基本BLE蓝牙开发实现都详细的描述了.

以上就是本文的全部内容，希望对大家的学习有所帮助，也希望大家多多支持我.

原文链接：https://blog.csdn.net/qq_37523448/article/details/84247301 。

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