When I type 192.168.1.200 in my browser I get the webpage with buttons that I expected. Please see the webserver GET code above how the webserver outputs HTML to my browser. The webserver POST code searches for "command" in the name field and is able to pass value "aOn" or "aOff" to the function switchLights(value). I hoped that http://192.168.1.200/?name=command&value=aOn would do the same but I only see the EPIC FAIL message that the webduino webserver outputted. Does anyone have an idea what is the URL of my buttons? Clearly I don't understand yet how to pass parameters through the URL.