I'm relaive new to this topic so my questions are more theoretical.
I try to establish a wireless connection between a Raspberry Pi and a Smartphone to view different kinds of media (Text, Picture and Video). I have some questions regarding this about if and how this works in theory.
Is it possible for the Raspberry Pi o work on a "Standby Mode" until a client device comes near/activates it?
What are the things i need to know about the Raspberry being a server and able to communicate to other devices over WiFi? What kind of software should I use for that purpose?
Is it possible to view the File structure of the Raspberry Pi without an individual app on the smartphone (i.e. web browser)?
In case of testing the concept, which tool(s) should I use to have a relative simple way of testing conections? Is there already an (open source) project existing in hat area?
Would appreciate all / any advice.