#pragma mark - CBCentralManagerDelegate
- (void)centralManagerDidUpdateState:(CBCentralManager *)central {

    info(@"centralManagerDidUpdateState");

        switch(central.state){

            case CBManagerStateUnauthorized:
                info(@"unauthorized");
                break;

            case CBManagerStatePoweredOff:
                info(@"poweredOff");
                break;

            case CBManagerStatePoweredOn:
                info(@"poweredOn");
                break;

            case CBManagerStateResetting:
                info(@"resetting");
                break;

            case CBManagerStateUnknown:
                info(@"unknown");
                break;

            case CBManagerStateUnsupported:
                info(@"unsupported");
                break;
        }
}