Nano 33 BLE Bluetooth not visible on Android phone

Official Hardware Nano Family Nano 33 BLE
1

Hi,

I am trying to develop an Android app that connects to the Arduino Nano 33 BLE board.

But the device was not visible when I did the Bluetooth scan.

I use this example code: https://rootsaid.com/arduino-ble-example/

Can anyone give my tips on solving this?

Thanks!

2

Did you start the Serial Monitor before you started scanning?

The while(Serial); stops the sketch from running until you start the Serial Monitor. To ensure it is working correctly always close the Serial Monitor window, ensure the COM port is selected again after downloading a sketch and then start Serial Monitor again.