Issue with Background Serial Communication Using Type-C on iPad Pro

Hello,

I am experiencing an issue with background serial communication on my iPad Pro when using a Type-C connection to an external device. Specifically, when the app is inactive, in low power mode, or when the screen is locked (i.e., not active), the communication with the external device is interrupted.

However, this problem does not occur when using a Lightning cable on my iPad Mini. In that setup, the background serial communication works seamlessly under the same conditions.

Has anyone encountered a similar issue or have any insights into why the behavior differs between Type-C and Lightning connections? Any suggestions or workarounds would be greatly appreciated.

Thank you!

What API are you using for this? External Accessory framework?

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Quinn “The Eskimo!” @ Developer Technical Support @ Apple
let myEmail = "eskimo" + "1" + "@" + "apple.com"

I’m wondering how you can communicate with an iPad using the serial protocol.

I am using a cable from RedPark. RedPark provides an SDK, and the version I am using is V1.0.9.

Issue with Background Serial Communication Using Type-C on iPad Pro
 
 
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