kw123 wrote:1. Ikea tradfri only uses zigbee and works with its owns dimmers and the Ikea app through the Ikea gateway and ?? also through the Philips hue gateway and also the Philips hue dimmers ??
I'm not sure. I've tried to pair one model of Ikea lights with the Hue bridge and it didn't work, but I know many others have successfully paired different Ikea/Tradfri lights with the Hue bridge because they've asked me to add support. So if you can pair an Ikea light with the Hue bridge, I can add support in the Hue Lights plugin. But if you're not able to get the Ikea light to work with the Hue bridge, I couldn't do anything to fix that.
2. Philips Hue bulbs come EITHER in zigbee OR in bluetooth versions (??not both??),
With the hue bridge/gateway you can set light/color.. through iPhone app and hue dimmers. Bluetooth can bet set also directly iPhone app bluetooth--> bulb; When using bluetooth the bridge/iphone has to be within 10 meters to talk to the bulb
My understanding is that the new Hue lights that support Bluetooth also support ZigBee, but not both at the same time (so if you set them up using Bluetooth, they don't work with the Hue bridge until you reset them and pair them with the Hue bridge, then Bluetooth doesn't work). However, I'm not positive about this as I've not tested it myself.
3. the Indigo Hue plugin talks to the Philips hue bridge / gateway through HTTP / Restful interface. Only one gateway is supported, for a second bridge a second plugin with changed name for the plugin has to be used.
Is this correct?
Yes. The Hue Lights plugin only supports communicating with one Hue bridge at a time, and only via HTTP/RESTful interface. Using a second bridge requires duplicating the plugin and changing the plugin ID within the plugin bundle so it looks like a new plugin to Indigo (thus creating separate preferences and settings for the 2nd copy of the plugin).