I have a xbee S6B wifi module on a seeed studio v2.1 shield which is on a arduino uno. I configured the S6B using XCTU to connect to my wifi hotspot. I am able to communicate with the wifi module from Device CLoud and Dashboard. I can also ping the module IP from another computer on the hotspot. I am unable to communicate between the module and UNO. My ultimate goal is to serve up a web page on Uno with a button to control a pin and turn something onand off from another device within the hotspot network. I am confused on whether the shield connects the module to Uno other than power. What pins do I need to connect between module and Uno to get them to communicate.