I am trying to expose ESP8266 to be available both when working as access point and while connected to the wireless local network (use case would be: is user leaves home with the device - it starts broadcasting its own AP, when at home it connects to available network).
What I am looking for is a single, reliable way to access the device from a browser (via the bookmark) - regardless of the IP / network device is connected to.
My findings so far:
- mDNS (Apple Bonjour, .local domains), will work on most of modern machines except Android
- Setting up hostname may or may not work depending on the router's firmware - and Chrome on Android may bypass this entirely and try to resolve with 8.8.8.8
- Setting up regular DNS service on ESP8266 will work only if the device is working in AP-mode
- DNS-SD would require a client of some sort on clients side
- Getting browser IP in JavaScript is not possible
My searching skills failed. Is there any way to make it happen?