Assuming i build an accessory using "Made for iPhone" program
is it possible to just send raw bytes to a bluetooth receiver without having to pair with accessory or any other "hand-shake"?
the accessory can only receive it cannot transmit
thank you
From what I have seen if you use the GameKit to connect / send data between devices , Explicit Pairing is not required.
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I have a BLE dongle named Bluegiga (BLED112).
Bluegiga USB dongle
By using the BLEGUI I can see my bluetooth GATT profile Service UUID and characteristic UUID.
While press the connect button it shows connected but, I am sending data from iPhone It is not received in BLEUI. The central (Bluegiga) is running in a windows PC.
If anyone used the Bluegiga dongle, please help me to correct the same for a data transfer from iPhone to the target.
I really searched on this topic for a while now. Especially when iOS 3 was the latest software version on the iPhone.
I wonder if there is a possibility to connect the iPhone to an external device via Bluetooth using the SDK and retrieve measured data?
Thanks for your help!
Greeting!
mary
If the Bluetooth device can masquerade as a Bluetooth keyboard, then it can send data to an iOS device encoded as keystrokes.
If the Bluetooth device is or can masquerade as a headset, then it might be able to send data encoded by an audio modulation scheme, such as FSK. A matching modem/codec will need to be running in the iOS app.
For the newest iOS devices (4S) you can use the new Bluetooth LE protocol to send data (older Bluetooth data communication protocols are not available to apps unless you are in Apple's NDA MFi program).
You have to look into the MFi Program by apple since you want your devices communicating. It provides support on using an external accessory with your iPhone, though you have to register/pay for it.
I'm new to bluetooth. Is there a way through an API call or callback to get some event from a device that's connected via BT to the iphone? That is, without using the apple authentication chip?
A simple example would be an accessory that acts as a doorbell. My device would send "something" to the iphone to tell it someone pressed the doorbell button.
No - your accessory has to be MFi compliant
Can iphone use as a receiver ? Let's say, there will be one app which can connect with a hardware that can send RDF signal. Is that possible iphone to receive signal without any additional hardware ? Thanks.
It's not possible without any additional hardware.
In order to make peripherals work with iPhone you need to contact Apple and become a registered peripheral developer, the membership that allows manufacturers to use the "Made for iPhone" etc labels.
Once you're a member you can get access to the peripherals SDK which allows you to develop for devices that connect to the iPhone using the 30 pin dock connector.
Without developing a device that receives RDF signal that can connect to the iPhone either using the dock connector or a network connection, there's no other way to make the iPhone receive that signal.
If the RDF hardware is able to communicate using standard UDP or TCP/IP based methods then the iPhone can communicate with it using network communication classes. This could be CFNetwork or higher level classes such as NSURLConnection.
Anybody knows how to integrate iPhone with other non-iPhone devices using serial port?
You can't directly. There may be some sort of serial line (i2c) on the dock connecter, but it is not exposed through the SDK, the Made for iPhone/ExternalAccessory.framework stuff is only for USB and BT.
You could conceivably use a WiFi/serial bridge (such things do exist) since you can send whatever you want over a TCP tunnel, but I doubt that is what you want.
Underlying ExternalAccessoryFramework for 30-pin connector it's the real UART handshaking (using Tx, Rx, Gnd, Vcc and some detect pins and no flow control) but not USB. Those pins of USB are only used for iTunes, Xcode and powering. The iOS app does not need to understand UART and only needs to send/receive bytes through NSOutputStream and NSInputStream.
But you need to pay Apple for MFi(Made For iPhone) Program first and buy some confidential IC to enable your accessory to communicate with iOS. They will require you to propose a product plan and expected sales and consider whether they would accept you as a MFi manufacturer.
You can get the info on using the ExternalAccessory framework from apple's developer portal.
You can't get the required serial handshake(?) info without joining the Made for iPhone program. This requires that you are developing a commercial device.
I have tried to get information on this protocol from apple through my university and have thus far failed.
I successfully received serial communication from the Arduino on the iPhone. I made a google doc explaining my process.
https://docs.google.com/document/d/1Yi9_hcw8XSyYNCG2OJT9oHlTG-dC-Dnuc58VIULa81Q/edit