I am trying to set up an IoT device using a Raspberry Pi 3A+. I want the Pi to connect to WiFi, so for this I set up an access point on which the WiFi credentials can be sent. The issue is finding this access point, as iOS does not allow scanning for available WiFi networks (bear in mind, this needs to work with multiple devices, so I cannot use a predetermined SSID).
I have tried to solve this using Bluetooth a Bluetooth server that has the name of the access point's SSID. While this works fine for Android, iOS devices are never able to detect the server. For setting up the Bluetooth server, I use the following:
$ sudo bluetoothctl
[bluetoothctl]# serial-alias <ACCESS POINT SSID>
[bluetoothctl]# menu scan
[bluetoothctl]# transport le
[bluetoothctl]# discoverable on
/etc/bluetooth/main.conf I have set
DiscoverableTimeout = 900 and
ControllerMode = le.
I hope someone can help me figure out how to setup the Bluetooth server properly. It only needs to be detectable and nothing more.