core-bluetooth

I'm trying to set up a bluetooth connection between two iOS devices. The idea is that one device offers a service and multiple devices connect to it: Device A (service): User slides through a presentation Device B (multiple clients): User watches the presentation, no interaction In my understanding the one which offers the service should advertise it and respectively be the peripheral by creating a CBPeripheralManager and implement the CBPeripheralManagerDelegate -> Device A On the other side, there are multiple central devices which scan for peripherals using the CBCentralManager and

I'm relatively new in iOS development. I want to make a cross-platform Bluetooth app, in Android, I use RFCOMM to send custom data, like strings. When I googled 'iOS Bluetooth', I've found the Core Bluetooth framework in the results, it seems to be made for low-energy connections. I only want to use RFCOMM instead of other profiles because of two reasons: I use RFCOMM to send custom data, like strings. I want my app to be able to connect with non-apple devices. Is it even possible to use RFCOMM in iOS? If not, are there any workarounds to connect with non-apple devices? no, 'core bluetooth' on

I am having some major trouble with my Bluetooth Low Energy application sometimes dont manage to connect to my device (described in thread). I need to wipe out all stored data from previous connections before running my application, and as far as I know, this can only be done by rebooting the phone. Is there any other way, preferably programatically, to do this? Thank you I am having the same issue and have found the steps to reproduce it. It is 100% reproducible when you transmit data to the peripheral with [peripheral writeValue:x forCharacteristic:y type:CBCharacteristicWriteWithoutResponse

I'm playing around with CoreBluetooth in iOS 7, and have successfully got two devices sending quite a large amount of data between each other (one is the central, one is the peripheral). Between an iPhone 5 and 4S I had an MTU of 20 bytes, and between an iPhone 5s and iPhone 5 I had an MTU of 132 bytes. The size is much larger, so I assumed fewer individual messages would be sent and therefore the overall time of the transfer would decrease. Unfortunately the time remains pretty much the same in both scenarios (around 15 seconds). Was my original assumption incorrect or is there something I

I want to advertise static data. I'm using Swift 2.2.1 and CoreBluetooth on iOS. My app builds bluetooth Services and their corresponding Characteristics , then calls startAdvertising() , and the peripheralManagerDidStartAdvertising90 callback returns this error: peripheralManagerDidStartAdvertising encountered an error. // Mine One or more parameters were invalid. // ...from Apple CoreBluetooth nil // ... return value from Apple CoreBluetooth callback I'm relatively new to Swift and iOS development so my guess is that I'm doing something goofy, but so far I can't figure out what. I'll attempt