I've tried to look but my phone can't see the BT network. The error occurs on the ble.begin command, so I have
and the second line never prints, leading me to the think it's in an error state.

Hello, I downloaded the Arduino core, and got a "Hello World" up and running. I noticed that there was a "SimpleBLE" example included, so I was assuming that Bluetooth had been added to the Arduino interface (I can't find much to confirm or deny this). I upload the sketch (which looks like it just a...