I'm new to Arduino and would like to control switches as well as receive data from the Arduino via WiFi and a web page on my PC. The majority of the info is either receiving data only or sending data only projects. Where can I get some good info on how to do this? Thanks.
I use the Arduino UDP protocol for 2 way communication with a LAMP server. Here is the UDP part from the Arduino to the Linux-Apache-MySQL-PHP server. The Arduino is the client, sending a packet to, then getting a response from the server.
http://forum.arduino.cc/index.php?topic=198259.msg1462983#msg1462983
It is for the ethernet shield, but I have adapted it to the wifi shield and it works fine,