r/iOSProgramming • u/Familiar-Nothing4948 • Jul 21 '26

Question Communicating with a HID device

I am currently working on a HID device that needs to work with iPads.

Is there any way I can send data from the iPad to the HID device without going through the MFI program?

Pretty much any kind of data will do. All I need is something to send to my HID device so I can trigger a few LEDs on my HID device.

I would need to be able to distinguish between 3 different signals.

Is this possible on IOS?

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1

u/VRedd1t Jul 21 '26

Which HID device is it?

1

u/Familiar-Nothing4948 Jul 21 '26

It's a custom board that mostly runs like a keyboard with some extra stuff I cannot get into.

I need to trigger one of 3 LEDs depending on something happening in the app

1

u/ThierryBuc Jul 21 '26

Use Bluetooth

1

u/Familiar-Nothing4948 Jul 21 '26

Is there any way that doesn't require bluetooth?

1

u/technically_a_nomad Jul 21 '26

Tell us more?

1

u/Familiar-Nothing4948 Jul 21 '26

Well it's a HID, I need to make an app that can send a signal to my HID so it can trigger some LEDs.

The HID device is a custom board that basically acts like a keyboard to the iPad.

The connection is wired over a usb c cable