hue Switch NFC

A simple App for changing state of your Philips hue lights using NFC tags.Options:1) Switch OFF - Always switch off, doesnt matter which state the light currently has.2) Switch ON/OFF - Toggle light depending on the current light state.3) Switch ON - Always switch on, doesnt matter which state the light currently has.4) Switch Color - sets the color stored for the light on the tag. The color stored is the color the light had when the NFC tag was written.For lux lights this option just changes brightness.Groups are supported. Contradictory group/light settings lead to an unpredictable state change. Just dont do it.Note: Storing the current color of groups can be a little tricky, since the state for groups is the state last set for the group. Thats not necessarily the color which can be observed when writing the tag.In order to use the App the hue bridge must be connected to the internet (Currently the bridge is discovered by internet link only, that might change in future versions)Once the IP is received, its stored and internet connection is not needed anymore.Refresh starts bridge discovery anew.To read data stored on a NFC tag, just put it on the NFC tag when the App is in foreground.Have fun switching!