You don't need MAC address - you just need the iPhone to broadcast specific BLE advertising packet/payload.
Using Core Bluetooth API it is trivial, but you need to either:
a) create an app that does it and user has to download it
b) modify SDKs existing in apps (e.g. Ad SDKs)
Also turning app/phone into a "BLE beacon" is only possible when app running in the foreground (on iOS).
Using Core Bluetooth API it is trivial, but you need to either: a) create an app that does it and user has to download it b) modify SDKs existing in apps (e.g. Ad SDKs)
Also turning app/phone into a "BLE beacon" is only possible when app running in the foreground (on iOS).