How to make an "iron" remote control?

Question

Arduino

There is an ethernet relay board on ATMEGA32U4 connected to
4G internet at a remote site. By vpn, she is visible on the local network and is well controlled through her web page (relays click, sensors work). I don't feel comfortable managing this through the browser. I want to make a remote "remote" with 4 LEDs that display the status of the sensors and 4 switches that control the loads. Those. a kind of autonomous device that is included in the local network and works without a computer. Prompt, please, similar implementations of such task (suddenly there are already ready decisions).
PS. I'm interested in a solution, not necessarily with the relay board I'm currently using.

Answer 1

I don't think there is one so ready-made that it will work with an arbitrary web-api out of the box. So you will have to take any single-board device (an arduino with an ethernet shield will not work (more precisely, it will, but it will take a long time to port it to its openVPN)), then, armed with firebug, reverse the API of this relay and create.