self.centralManager = [MBCentralManager sharedCentralManager];
__weak typeof(self) this = self;
[self.centralManager scanForMiBandWithBlock:^(MBPeripheral *miband, NSNumber *RSSI, NSError *error) {
    [this.centralManager stopScan];
    [this.centralManager connectPeripheral:miband withResultBlock:^(MBPeripheral *peripheral, NSError *error) {
        MBUserInfoModel *me = ...
        [peripheral bindingWithUser:me withBlock:^(NSError *error) {
            //连接成功
        }];
    }];
}];

// 获取当前总步数
__weak typeof(self) this = self;
[self.peripheral readRealtimeStepsWithBlock:^(NSUInteger steps, NSError *error) {
    this.realtimeStepsLabel.text = [NSString stringWithFormat:@"%tu", steps];
}];

// 实时更新步数
[self.peripheral subscribeRealtimeStepsWithBlock:^(NSUInteger steps, NSError *error) {
    this.realtimeStepsLabel.text = [NSString stringWithFormat:@"%tu", steps];
}];

// Todo

//查找手环
[self.peripheral sendNotificationWithType:MBNotificationTypeNormal withBlock:^(NSError *error) {
}];

//目标设定
[self.peripheral setGoalSteps:8000 withBlock:^(NSError *error) {
}];

//指示灯颜色
[self.peripheral setColorWithRed:6 green:0 blue:0 blink:YES withBlock:^(NSError *error) {
}];

//佩戴方式
[self.peripheral setWearPosition:MBWearPositionLeft withBlock:^(NSError *error) {
}];

//来电提醒
[self.peripheral setCallRemindInterval:10 withBlock:^(NSError *error) {
}];