Philips Hue: Automated Home Lighting Gets Colorful
by Ashu Joshi on March 1, 2013 12:50 AM EST- Posted in
- Gadgets
- Home Automation
- Philips
- Hue
- Lighting
Hue as a Home Automation Controller
Given the fact that Hue uses a ZigBee controller, one of the questions some will have is whether the Hue can be extended to support other devices. While it’s possible for Philips to create other devices that could work with Hue, I have serious doubts that the Bridge can act as a sophisticated home automation device given the choice of the microcontroller and the amount of memory on the Bridge controller. If Philips changes the firmware on the ZigBee controller in the Bridge, it could be extended to control other ZigBee devices in the home, but right now it appears that the CC2530 is being used in the Light Link profile of ZigBee.
Despite my doubts, the hacker community amazes me. A simple Google search brought me to this site, run by Ross McKillop. Ross has reverse engineered the HTTP protocol between the App and the Hue Bridge, and it appears that communication is done in the open, not with SSL. (Potentially the CPU on the Bridge just isn’t fast enough to make SSL encryption viable.) He has additional details, but then goes on to link to EveryHue as a source of further unofficial help/discussion.
Philips has stated their intention to open up the APIs and the app SDKs for developers. Once they do this I have no doubt that there is an immense potential to use the Hue in interesting ways that perhaps weren’t part of Philips’ initial plan. I can imagine Universal Remote controllers that are app-based tying into the Hue or high end systems such as those from Control4, or perhaps a GoogleTV app that controls the bulbs in your living room while watching a movie. Only time will tell what the hacking community will do with Hue as they gain more experience.
Closing Thoughts
The Philips Hue is at present a unique and interesting lighting system with elements of home automation that can be attractive to a diverse set of users. I found it was easy to set it up and I’ve really enjoyed the experience of having the lighting scenes and controls if affords. However, like any other consumer electronics device, the Hue has its pros and cons.
The good aspects include the aforementioned ease of setup; many home automation devices can get pretty complex, especially for the less technically inclined. Hue is relatively simple in terms of what it allows, and that helps to keep the learning curve pretty shallow. Once it’s up and running, it can provide some really cool functions, and it’s sure to be a great conversation topic at your next party. Finally, while we couldn’t fully test this, the Hue Bridge appears to have very good range so communicating with lights within any reasonably sized house shouldn’t be a problem—if your WiFi can cover the area, Hue should be able to do that and more (via its mesh network).
Not all is perfect, however. At present, there’s very limited extensibility or integration today. Hue does one thing and does it reasonably well, but if you want to use it as part of an existing platform you’ll have to do quite a bit more work. This is yet another app/system for home automation, and if you’re already invested into one of the other solutions you might want to wait for the APIs to open up and let someone else get Hue working with whatever platform you’re running. The other major hurdle to overcome is the price, which is often the case with home automation. At $200 for the Starter Pack with just three Connected Bulbs and the Hue Bridge, you basically only get enough lights to handle a single moderately sized room, or perhaps three smaller rooms. Additional Connected Bulbs will run $60 each (plus shipping and tax), and while the colored lighting offered by Hue is unusual, that’s still three to ten times as much as you’ll pay for other LED bulbs.
For those with the money and interest in colored lights, though, I think the Hue lighting system can be a great way to go. It provides a good base set of features and functionality right now, and over time I expect things will continue to improve as others get creative with the hardware and software. I would personally highly recommend the Philips Hue, but it’s definitely not the type of product that will appeal to everyone.
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nathanddrews - Friday, March 1, 2013 - link
The difference being, of course, that LIFX uses a master 802.11n bulb to control all the 802.15.4 slave bulbs instead of an extra controller box plugged in elsewhere. Also, unlike the Philips system, you have to not just have the app but also must be on the network in order to control the bulbs as each of the LIFX slave bulbs will only work with the master bulb which is behind your network password. The Philips system has no such security, which immediately removes it from the running, IMO.xdpfddai - Friday, March 1, 2013 - link
This is incorrect. The Phillips controller hub is behind your wireless network, so whatever security you have on that applies. They are both secure. 802.15.4 also applies to ZigBee.nathanddrews - Friday, March 1, 2013 - link
The controller hub/bulb isn't in question, it's the slave bulbs that I'm concerned about. The article probably needs to flesh out this comment better:"Given the use of the ZigBee controller along with the fact that there is no configuration on a per device level to connect it to the network (e.g. you just buy additional bulbs and they apparently broadcast and communicate with any and all Hue devices), we would assume that 50 lights and a single Bridge is about as far as you'll be able to go within a single area. Conceivably, there could also be problems if your immediate neighbor also picked up a Hue—how would the lights know to talk to your Hue network and not his? This is both the blessing and curse of going with an easy to configure technology."
If your neighbor can buy a Hue Hub and just start controlling your bulbs, then it is certainly NOT secure. LIFX appears to have locked out this capability simply by using the built in 802.15.4 encryption, so perhaps this is a case of LIFX applying the encryption and Philip not.
"We have considered security. The WiFi connection will use the standard security set-up that you are currently using. Mesh networks based on 802.15.4 will encrypt packets using AES-128. Higher network stack layers will need to handle exchange of security keys and deal with problems like "replay attacks". In short, your lights will be as secure as your home wifi network."
xdpfddai - Friday, March 1, 2013 - link
Just RTFM on ZigBee and 802.15.4. In short, they both use 128bit crypto. You don't have to worry about it as the end user either. If anyone is going to do their due diligence, it's going to be Phillips. You need to realize that both LIFX and the Phillips implementation are 802.15.4.This Guy - Saturday, March 2, 2013 - link
Last time I checked zigbee uses a four digit, numerical key to identify mesh networks. Not exactly secure.iamezza - Sunday, March 3, 2013 - link
So someone could hack into your light system and screw with your lights? Not really a big deal TBH.SodaAnt - Friday, March 1, 2013 - link
I think that the technology is almost there, but the price isn't. For this to be a reality for normal users, each bulb would need to be in the $10-$20 range, and would only really gain widespread acceptance if each bulb was below $10. To me, these really only make sense if you have a small apartment or something and can easily light it with 3-5 bulbs total, and even then its a significant expenditure.This Guy - Saturday, March 2, 2013 - link
The zigbee radio's and high output RGB LED's are a significant additional cost (compared to the $10 RGB IR controlled globes you can but for $5 - $10). Neither item is mass produced on the scale that truely reduces their price.Ualdayan - Tuesday, March 5, 2013 - link
There are cheaper Zigbee bulbs. I saw on another site somebody mentioned Limitless LED that are only $57 for 2 bulbs+wireless bridge for phone/tablet, and $19 per additional bulb. Now - they only offer a 3 year warranty (Hue is 5 years I believe), and from what I've read their software isn't as 'fun' as Hue's. Eg nothing like Hue's ability to set a 'beach' mode, 'reading' mode, or 'sunset' mode. Let's face it - nobody needs these - they're just for fun. With that in mind I think personally even at double the price I'd go for the ones that have software that is more 'fun'.I just have too many other things I know I should replace before having fun with lightbulbs.
Rick83 - Friday, March 1, 2013 - link
Except, not really, because at that price it's going to have an exclusive audience.Something that I did't quickly find in the review is the quality of the actual bulbs. (Considering that this is the business end of the product, I should be able to?)
The controller itself certainly is interesting, but then it's "merely" Zigbee in a box.
A comparison to similarly specced non-smart LED lights would have given a better price differential for the smartness.
Also, I can't really come up with a use case. For me, the light in a room is always tailored to the room. The only reason to use this kind of semi-smart light, is if you have limited rooms, and need to multipurpose them, by varying the lighting. Then of course, you don't need nearly 50 lights.
To me this looks like the answer to a question nobody asked.