Gadgetory

hello my name is Gary seemed from Andrew authority now we've had Bluetooth since the mid 1990s and recently the Bluetooth special interest group released some details about Bluetooth 5 now what is Bluetooth 5 why is it a good thing and when will we get it well let me explain Bluetooth 4 comes in two categories Bluetooth classic which is the Bluetooth we use to power our keyboards and mice and wireless speakers and Bluetooth Low Energy which is used for healthcare fitness and for beacons so while a wireless keyboard will be using Bluetooth classic a device like the Fitbit will be using Bluetooth Low Energy and that's because it hasn't got such a high demand on the battery now with Bluetooth 5 Bluetooth classic remains exactly the same and it's completely backward ly compatible so all your existing keyboards and speakers and mice will work with Blu to five devices and that won't be a problem however the big changes come with Bluetooth Low Energy in Bluetooth 5 they've been some big changes first of all it has a greater range it has a greater speed and it uses less power now with Bluetooth Low Energy version 4 you're expecting an outdoor range of around 50 meters and indoor range would be around 10 meters of course that depends on how many walls there are and the construction of the walls and how thick they are and so on now with Bluetooth 5 that's been boosted to 200 meters 200 meters line-of-sight directly no obstacles in the way and inside that means now around 40 meters now I don't know how big your house is but I'm sure that in my house everything was in 40 meters of everything else so this has a real boost for areas like Internet of Things and for home automation and even for home security because now these devices can talk wirelessly with a low energy consumption amongst themselves in a 40 meter radius and that's a good improvement but it's not only range that's been improved it's also the speed now previously in version 4 of the Low Energy Bluetooth specification the physical Bluetooth speed was around 1 megabits per second now that's been boosted to 2 megabits per second now when I say the physical speed that's because one by time you add on protocols and arrow checking and so on the actual data rate is reduced a little bit but tests are showing that the theoretical throughput for a Bluetooth 5 low-energy device in 1.6 megabits per second but that's full duplex which means in both directions so in a single direction that's around 783 kilobits per second however what that means practically is again devices like the Fitbit or other similar devices will sync at least twice as fast but also it means that there's maybe new areas that can be explored now because data can be sent quicker maybe video audio without there being consider consumption of the battery power and as I said there's less power use now you'd imagine it with all the extra range and the extra speed and actually the power usage would go up but because of some clever technology that's including Bluetooth 5 including a better use of the frequency different ways of doing the modulation the actual energy can be up to two and a half times less depending on the usage situation so greater range greater speed and less power however there's also one important extra thing that's been added to Bluetooth 5 now in Bluetooth 4 there was the idea of connectionless broadcasting if you remember at the moment when you use bluetooth you mainly use it by pairing it you pair your phone with you with your Fitbit you pair the phone with the speakers you pay a computer with a wireless keyboard and so on but there is a mode in Bluetooth 4 that allows you to have a connection less advertising and this is aimed at the idea of things called beacons basically little device that can transmit Bluetooth information in an area let's think about a shopping mall for example maybe you go into a particular shop and there may be a Bluetooth beacon that will transmit information that offers about having it access to their online site or some lots the possibilities that can be used you can even go up to a parking meter and it has a Bluetooth beacon that can tell your phone how you can pay online for example and there was a small problem with the Bluetooth 4 version you are only allowed to put 31 bytes inside those broadcasting packets now in fact there's no standard for how that 31 bytes is formatted and there are different schemes available the moment one is ibeacon from Apple and another is Eddystone from Google which try to define how those 31 bytes look on what information they can contain now the problem is when you add protocols inside of that data package actually the amount of space you can get in actual data in there is even reduced even further because you have to have bits of proto say this is an ibeacon think this is an Eddystone thing this is a URL business text this is whatever and that takes up space inside that 31 bytes and really it takes around sort of 1011 bytes so you drop it down to kind of even 20 bytes even 17 bytes of available data now HTTP colon slash slash and/or Authority comm won't fit into 17 bytes so we couldn't have a Bluetooth beacon that transmits the annual thora T's website now the way this was envisioned in Bluetooth 4 is through the use of a thing called universally unique identifier you you IDs and these are basically 128-bit numbers that were basically unique and your phone could match itself up to a unique beacon say alright I recognise this beacon I know what it's about I know where I'm coming from and maybe inside a shopping mall the beacons would be different between every shop inside each department they would all be different and their uniqueness means they can be uniquely identified but then it would require the phone to talk to something on the internet to actually say hey what does this unique number mean what can I do with it can I look it up can I use your app maybe I'll install an app for a particular shopping mall can I use the app to find out what that means and really just having that unique number is powerful but really not powerful enough and so the Eddystone standard from Google not only allows you to produce these IDs it also allows you to send out URLs it also allows you to send some encryption data if you wanted to do some authentication stuff now 31 bytes down to 17 bytes by technically is not enough space however with Bluetooth 5 that has jumped from 31 to 255 bytes even when you include the protocol overhead that's a significant chunk of data which means you can send out some very sophisticated URLs so imagine you got to a parking meter the parking meter sends out a Bluetooth broadcast that says you can go here and the URL is formatted with maybe what floor you're on what the parking meter number is what time it is and all that data will be sent through your to your phone you can then go onto the web and you can pay for a parking ticket now imagine that for just about any service or idea that you can think of with all that data uniquely specifying a single physical point now actually this idea is being spearheaded by a project called the physical web which Google also involved in in the idea is that as you go up to physical items you can have a web connection an internet connection that allows you to interact with them so Bluetooth 5 will see a boost in the use of beacons because it allows you to add in that extra information now what I'm gonna do now is show you a Bluetooth beacon running on a Raspberry Pi and it's only of course version 4 so you're limited to that 31 bytes however it will give you an idea of what's possible today and where this is heading once we get Bluetooth 5 coming now what I have here is a Raspberry Pi 3 and it's been pre-configured to send out Bluetooth Eddystone broadcasting packets as you can see there's nothing else connected except for just the power so if you're building a beacon all you need is a power supply so what I have here now is an app which i've downloaded from the Google Play Store called beacon scanner and when you start the scanning that will pick up the broadcasts that are coming from the Raspberry Pi over Bluetooth and it's here as you can see I've used a short URL because as I said earlier those 17 bytes aren't enough for the full Android EECOM URL if you tap on the signal you'll get some information about the data that's being broadcast and then here at the bottom you can actually on the URL and it will open up the website now if you go to an Enron website you'll find an article that accompanies this video and there i've got full instructions on how you can turn your Raspberry Pi 3 into an Eddystone Bluetooth beacon so when we be able to buy a Bluetooth 5 smartphone well basically the specification itself will be completed by the end of 2016 and because of the changes that are occurring there needs to be new hardware this isn't a software only upgrade so the chipset makers need to make some new chipsets and they will be available sometime during early 2017 and then once those chipsets trickle through to the OEMs will probably see products that support Bluetooth 5 towards the end of 2017 so if you're looking for a new smartphone at 2017 holiday season then get one with Bluetooth 5 well my name is Gary Sims from Andhra thority and I really hope you like this video if you did please do give it a thumbs up also don't forget to use the comments below to tell me what you think about Bluetooth 5 - are you looking forward to it coming do you think it's going to revolutionize because you think it's going to be revolutionized home automation and the Internet of Things if you want a more in-depth discussion I've also got a thread going over at the end or Authority forums why not come over there and connect with me and we can talk about the possibilities that Bluetooth 5 present for us also don't forget to download the Android or 'ti app because that will 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