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Arduino Garage Door Opener with Adafruit WiFi Shield? Answered

I was hoping to be able to start my WiFi Garage door opener, but I then realized (Well Adafruit told me (http://forums.adafruit.com/viewtopic.php?f=31&t=44626&p=225993#p225993)) that their WiFi shield doesn't accept incoming connections :(. They did, however, say that I could use it to set up a UDP server and then send a UDP packet from my phone. Only problem is, I don't know what a UDP server is, or what UDP stands for, as I am extremely new to electronics. My question is, how would I go about doing something like this? Should I just scrap the Adafruit route or is it still relatively simple to do it this way. I am open to all ideas and I don't mind buying another WiFi chip if need be.


Thank you so much! I kept searching for "Adafruit cc3000 set up UDP server" and wasn't getting any good tutorials. I hadn't thought to just look up "How to set up UDP server"