I have see applications (like my router) that allows access via http. How exactly does that work? I am guessing that there is there an embedded webserver that accepts http but how does it work after that? Is there some kind of app server that parses the commands and configure the incoming ports, etc? Where can I learn more about how this sort of thing works?
Thanks for your time.
I have see applications (like my router) that allows access via http. How exactly
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Web servers are a pretty popular embedded systems project. Most routers are more powerful than you might realize and a lot of people hack those. You could also build your own by programming a microcontroller and interfacing it with an ethernet chip like the ENC28J60. You can build mini web servers using tiny little 8-bit microcontrollers like PIC and AVR microcontrollers.
So, to get started, look at the various microcontrollers that hobbyists are using and jump in to a tutorial.