iOS Question Send bytes from iPhone to USB-device.

[OlavRossland]

Hello.
I want to send { 0x7e, 0x00, 0x0b, 0xff, 0x7e } from my iPhone-app to my USB-device via lightning/USB-C cable.
How can this be done in a small code?

 

[OlavRossland]

…or is it even possible with b4i ??
@Erel ?

 

[Erel]

It is not possible with iOS.

 

[OlavRossland]

It is not possible with iOS.

BLE ??

 

[Erel]

BLE ??

Yes: BLE (Bluetooth Low Energy) library

 

[OlavRossland]

1) So - I can send example{ 0x7e, 0x00, 0x0b, 0xff, 0x7e } from my iPhone-app to my USB-device via BLE?

2) Can b4i handle midi as well?

 

[Erel]

from my iPhone-app to my USB-device via BLE

No. BLE works with BLE devices.

Can b4i handle midi as well?

Not sure what you mean.

 

[OlavRossland]

No. BLE works with BLE devices.


Not sure what you mean.

I mean: have b4i something like a midi library? In other words: Is b4i capable to make midi-apps?

 

[Erel]

There is an API for this in iOS: https://developer.apple.com/documentation/coremidi?language=objc
It will require writing a library or accessing this API with inline OBJC. Note that it requires joining Apple's MFi program. Not trivial.

 

[OlavRossland]

Well, thanks for your answers @Erel.
Unfortunately, it seems that it is significantly easier to create apps with b4a than b4i. But that is another discussion.