How to receive data from built-in BLE?

I am using an Arduino Uno Wifi/BLE Rev 2.

Can I use serial like I would a separate bluetooth module, or do I need something special?

I am using an app that sends one byte of data that will control the arduino board.

Beginner here, so sorry for any confusion!

I don't see why you couldn't, you could do some google searching though. I would just try it, it probably won't hurt anything.

It should be fine. I guess all you need to know is which pins the BLE is connected to. Also make sure that the app is BLE compatible. Not all are.

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