Entries tagged as IoT
Dawon DNS SK Telecom smart meter smart plug Witty A1530 A1533 AT&T iPhone 5S LTE 3DMark Cortex Camera Geekbench iPhone 3GS iPhone 4S iPhone 5 Kraken Octane performance SunSpider A1522 A1524 A1549 A1586 iPhone 5C iPhone 6 iPhone 6 Plus KT LGU+ VoLTE VoIP barometer belt case camera Focus Pixels iOS 8 iPad iPad mini Reachability screen protector Apple Store Chungjang-ro Gwangju iPhone 6+ 11st Bluetooth electricity LG Prada 3.0 Seojun Electric fluorescent light iPhone 6S Plus LED light fixture TopLux Sigma LED television air conditioner FLIR One Bitgaram City car KEPCO Naju solar panel adapter socket wire Elgato Eve HomeKit Incipio Koogeek Leviton lights power plug power switch Apple TV 4th Gen Philips Hue sensor smart button fingerprint Touch ID M7 pedometer accelerometer compass gyroscope M8 battery Bolt EV building convenience store electric infrared thermal imaging road 3D printing corn dog Hayun Chung hot-bed hot-end lightning cellphone charger JooN 2 USB watch cable iOS Micro-USB astronomy Canon EOS 450D Kiwi Fotos KF-8012N Sony A5000 Celestron NexStar 6SE telescope Apple Watch GPS pen dock earphone iPhone 7 speaker MacBook Air emergency KPX news summer winter EMS K-EMS New EMS Wesley Woo-Duk Hwang-Chung Celine Chung solder switch rain Soulik typhoon weather tvOS 10 USB-C ballast Christmas tree decoration balls engine oil candle flower wedding fire house observatory App Store iPhone X PSAurora beverage London travel Vodafone Europe Japan Korea O2E Smart Multi-Charger UK USA KTX Mugunghwa Seoul SRT train BuyBeam BL-628 lamp remote controlled helicopter repair replacement Syma S107G BEXCO Busan exposition laser pointer porcelains water resistance barcode Nintendo Wii Oband T2 remote control running screen swimming watchOS 2 iPhone 4 PeaceKeeper app newspaper baseball Lego Oxford Block toy ISS satellite flare Iridium Tiangong Jupiter planet Saturn cup holder smartphone mount iOS 12 iPad Pro 9.7 iPhone XS CarPlay sled snow screwdriver table cookie milk Oreo Homeplus pizza chocolate chip cookies couch FaceTime New Year's Day rice cake Skype Sung-Eun Kim tteokguk computer swing Toys R Us trampoline Mega Kids Box Megabox movie theatre tortilla wrap toothbrush salad Disney Frozen Danish butter cookies animation Larva shopping cart ball bed globe headphones pink breakfast rice porridge Lunar New Year traditional Korean dress Hyung-Bae Kim kite sausage Cloud Cuckoo Palace Princess Unikitty The Lego Movie Evil Robot playground slide refrigerator Maytag RTD21A office Samsung curved screen Galaxy Round Galaxy S4 Zoom New Zealand Kit Kat MicroSD Screen Glue 3D Touch A1687 A1779 band Series 2
PSAurora Smart Bulb - the 7.5W globe bulb version
Power Silicon Ltd., a Korean manufacturer of LED lighting and power supplies, has expanded its portfolio to smart lighting late last year under its "PSAurora" brand. In order to promote these new products, the company was looking for people to test out and review these smart light bulbs. The smart lighting market is becoming crowded these days, so I was curious to know if they could hold their own and put in my request.
After the request to review was accepted, two bulbs arrived in the mail - the globe bulb version of the Smart Bulb and a handy Smart Portable. Both were controllable by Bluetooth Low Energy (BLE) from a smartphone using a companion app.
PSAurora Smart Portable - the 3W portable lamp
Each bulb came in a cardboard box adorned with English product description and basic user instructions. A much more detailed single-sheet user manual in both English and Korean was in the boxes. The bulbs themselves were largely made of plastic, but they did not feel flimsy and were well rounded.
At a first glance, everything seemed to be there for a user to get everything up and running, including installation of the app and controlling of the bulb. However, I did find some room for improvement upon deeper inspection.
Apple HomeKit platform goes back to iOS 8. It was not very fleshed out at the time, needing more polishing over the years. Last notable change to HomeKit was made in 10.2, which enabled device notifications. This, along with other improvements in iOS 10, led me to think that HomeKit was finally in a "usable" state. Thus I have invested in the HomeKit ecosystem since early April of this year, around when iOS 10.3.1 came out.
As I gathered enough tangible material to share, I did a 5-part write-up of my HomeKit experience, spanning sensors, lighting, and energy control. I felt that my 5-month experience in a non-American environment may be of use to many people who are considering the platform.
1. Moving to Apple HomeKit with Elgato Eve
2. Philips Hue adds light to the HomeKit setup
3. Controlling 220V Power & Light with HomeKit
4. How much power does HomeKit use?
5. On installing and configuring HomeKit lighting
But now, big changes are coming in the coming weeks. Most notably, the GM(Golden Master, finished version) of iOS 11 will come out in two weeks, as Apple's new iPhone announcement will be made on September 12, 2017. It will contain significant improvements for HomeKit. As noted in the 5th post, Philips will expand the range of Hue products that will be recognized in HomeKit. Elgato has announced five new HomeKit products including lock and smoke detector.
All this means that my iOS 10-based HomeKit write-up should be wrapped up at this point. I'll come back to this topic as the dust settles and I had my hands on the new features and products.
There are some things to consider and take action when you're installing smart lighting, HomeKit enabled or not, around the house. For the light switches, the biggest concern is the presence of a neutral wire. In most cases, you need this for a smart switch to function, but many switch boxes omit this and make things complicated. To see why things are like this, we need to take a look at the circuit diagram.
For a light to turn on, it has to connect to both ends of a power source. This is generally a single-phase AC power, which can be derived from a 3-phase AC power by using one of the phase wire and a neutral point. The wire connecting to the neutral point becomes the "neutral (N)" and the phase wire, the "live (L)" as seen in the diagram.
With a regular switch, all you need to do is to connect or break the connection between the live wire and the "load" wire leading up to the lamp. Therefore, a switch box only needs to have the live wire and one or more load wires coming out of it. Number of load wires correspond to the number of controllable light fixtures, of course. Neutral wire could also be present, but it wouldn't be connected to anything because there is no need to.
Smart light switch installation and its circuit diagram
The situation becomes different with a smart light switch. In order for the control module in the device to work, it also needs to connect to both ends of a power source, but at all times and independent of the lighting. As the live wire is already present, we need to add the neutral wire to the device as seen in the circuit diagram. With this configuration, the switch connected to the live wire and the load wire could be controlled either manually or by the control module. This is the reason why most smart light switches require the neutral wire.
The rare exceptions that can forgo the neutral wire have the control module connect between the live and the load wires. The module itself consumes little power and a very low current leaks through the load wire in the "off mode" so as to effectively prevent the lighting from turning on. But this generally requires the lighting load to be sufficiently large. If not, the leaked current may cause the lighting to flicker or cause other problems. In other words, this solution isn't as widely compatible as the switches using a neutral wire.