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Heath Raftery

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Everything posted by Heath Raftery

  1. NewieVentures, an electronic product development consultancy, is kicking goals and thus on the hunt for a talented electronics or embedded systems engineer. Join a small team to make a big impact. We turn ideas into products and no two weeks are the same. From our suite of Smart Parking devices to industrial power test rigs, you’ll get the opportunity to apply every facet of your technical knowledge while still exercising your vision and sense of value. Our particular speciality is in the Internet of Things and LPWANs, from PCB design to cloud infrastructure. We believe in life
  2. Fascinating project. You're really at the bleeding edge of Bluetooth so it would be beneficial to work directly with some techs from the Bluetooth SIG - I'm sure they would be very interested in having your project be a case study. BT Mesh is only 6 months old or so, so there wont be too many people doing what you're doing. Sounds like you've considered most of the parameters. A couple more: It's going to get really noisy where device density is high. Consider a scheme that disables relaying for nodes that have a lot of neighbours - if you keep the relaying nodes down so you have ju
  3. Yes, it is so often the case that the benefit of a capital purchase is not the presence of capital itself, but the impact of that capital if properly managed. In those cases it doesn't make sense for a customer to purchase something they have no relationship with. BMS customers don't want thermometers, they want efficient climate control. Smart Parking customers don't want an array of sensors, they want data. Farmers don't want to manage ultrasound sensors, they just want to know if their tank has run dry. If you sell a widget, then you're incentivised to sell more widgets, even if that's a no
  4. Newcastle IoT Pioneers is a free, rapidly growing meetup group established way back in 2016, for anyone operating in the Greater Newcastle region looking to derive some value from the Internet of Things. We meet monthly and last year we had a full calendar of presentations from the likes of Meshed, Thinxtra, Newcastle City Council and Schneider Electric, as well as IoT superstars Stuart Waite and David Goad. Today I'm putting the call out early to try to book in some presenters for the year's events. I know there's interesting stories from the trenches to be told but I don't know how to f
  5. So odd they never name the technology. Like they're keeping their options open or something. Interesting that at the same time Verizon and AT&T in the states are doing the opposite, focusing on Cat-M1 and snubbing NB-IoT in favour of unlicensed technologies instead: https://medium.com/@patburns/verizon-and-at-t-are-taking-a-pass-on-nb-iot-69edae3a053c
  6. At that scale you'd need a sensor network to monitor your sensor network.
  7. until
    December: The Rise of Things - Opportunities and Risks Our December event is on, usual time, usual place: 6:30pm, Thursday, December 7th, 2017. Stag & Hunter Hotel, Mayfield. Upstairs function room - look for the staircase in the middle of the pub. This month I'm honoured to welcome David Goad, Fellow at the University of Sydney, IoT Strategy Consultant and author of "The Internet of Things from a Directors Perspective". David has kindly offered to lend us a little of his extensive experience advising entrepreneurs and enterprises on their IoT strategy. David will talk about
  8. Yes, Newcastle only at the moment. But now that we've run our first session the feedback has been very encouraging - we now have plans for expansion! Definitely supply and demand is a factor. Like all these trends the supply tends to overshoot the demand. But I think there's also a element of thin value. By which I mean the dominant marketing message is that coding = skill for the future and that code camps = coding competence. When you sell something predicated on those two shaky equivalences you only have a short period of time before people notice the emperor is wearing no clothes.
  9. Interesting. Because I have to remind myself every time, a quick reference for others: LTE Cat-1 10Mbps/5Mbps, full duplex, available Feb 2016 LTE Cat-M1 1Mbps/1Mbps, half duplex, available today? LTE Cat-NB 1 20kbps/60kbps, half duplex, who knows? All being LTE technologies, coverage should be similar to LTE, maybe even a bit better due to lower rates. FWIW, I'm participating in the Everything IoT HackLAB in a couple of weeks. Happens to be hosted at Muru-D in Sydney, and Telstra just announced they'll be bring provisioned Cat-1 dev kits.
  10. until
    October: The Australian Maker Movement and its IoT Impact Our October event is on, usual time, usual place: 6:30pm, Thursday, October 5th, 2017. Stag & Hunter Hotel, Mayfield. Upstairs function room - look for the staircase in the middle of the pub. The Maker Movement is worldwide phenomenon that has put the creative and technical tools, once reserved for professionals, into the hands of amateurs and enthusiasts. And the results have been spectacular - inventions, businesses, creations of every scale have sprouted from the hands of the self-motivated and the curious.
  11. Heh, funny you should say that Tim. Cuts to the core of the motivation behind MiniSparx. The programming industry has been very successful in monopolising the mindshare of the tech/innovation industry. Definitely an important part, but I'm not convinced the world really needs that many people proficient in moving sprites in Scratch. You might get a rise out of my LinkedIn post: https://www.linkedin.com/feed/update/urn:li:activity:6307121692179333120 FWIW, we'll be using the littleBits STEAM kits.
  12. That's terrific, thanks for sharing. I ran a community "What's a Smart City?" workshop a while back and put together a similar IoT style, sensor to dashboard kit for participants to experiment with. It was Grove/Arduino/Ubidots based, which proved to be a nice trade-off between simplicity and flexibility. But when I want to "get the point across" on the data collection/marshalling side of things, a Pi running NodeRED is my go to. There's a local mob here that do a STEM course called StarLAB. Currently in about 50 schools. Very similar approach to teaching Python in this case -
  13. Love it. All the idle cash in the world is desperate to not miss out on the next Airbnb, and has done a sensational job of monopolising the narrative of business success. Rocket speed growth, a trail of destruction, laptops in cafeterias, and more talking than doing. Let the trends be trends. There's no replacement for authenticity.
  14. Great article. Funny - the security issues remain the same, but the implications get a whole lot more exciting!
  15. Some good points made there. Probably won't surprise any engineers to find that not all screwdrivers fit all screws. But yes, in the hype-driven business decision making world we live in, there are many examples of trying to use a screwdriver to hammer a nail. I'd go as far as to say the challenge is not to "figure out ways around these problems", because that assumes the fallacy that, for example, "edge" computing is a novel invention from the cloud era. In reality, processing has always been done at the edge, and cloud computing paradigms simply mean we need a term to describe the adopt
  16. I'd liked Stacey Higginbotham's take: https://staceyoniot.com/bluetooth-mesh-is-here-and-boy-is-it-complicated/ Why the Bluetooth SIG insist on being everything to everyone is beyond me. Rather than being ideal to many (Bluetooth Classic) they often end up being not very good to all (BLE) and confuse the landscape in the process.
  17. Fascinating. Quite an achievement. This is certainly a promising way to get started building a blockchain based application. Time will tell how effective it is in practice - currently the user base is heavily dominated by those with a vested interest in giving it the thumbs up! I'm encouraged by their approach to scalability and confidentiality. These are well known problems in the blockchain that underpins Bitcoin and to some extent Ethereum. Sounds like they've taken a few pages out of the Monero playbook, which I personally think is likely to be the cryptocurrency of choice for discern
  18. Did my post get deleted or did I forget to hit the submit button? Teksmobile, Hussain Fakhruddin and Romit Kumar are very prolific on LinkedIn on this topic, and I don't think they're doing the industry a favour. Their articles are misleading, confusing and full of errors. This is another example. I'm sick of charlatans confusing the public and making the job of the practitioners even harder. Dealing with a confused public that doesn't know who to trust makes it hard to make progress. Thus, I was motivated to reply. Here it is:
  19. until
    July: IoT Startups - Stories from the Frontline with Stuart Waite Our July event is on, usual time, usual place: 6:30pm, Thursday, July 6th, 2017. Stag & Hunter Hotel, Mayfield. Upstairs function room - look for the staircase in the middle of the pub. I'm delighted to welcome Stuart Waite as our guest presenter. Stuart is the CEO of Timpani - a specialist IoT Consultancy. He's an investor, mentor and advisor to a number of IoT startups as well as being a board member of the IoTAA and running their startup workstream. Stuart is highly influential in and supportive of the Au
  20. pfSense running on an old laptop is a popular way of securing NAT networks. If you want to run it on a RPi, don't bother trying to DIY, just use something like this: https://www.netgate.com/products/sg-1000.html
  21. I'm interested to see the responses to this. I know the IoTAA is busy assembling a "maturity index" which has as one of its aims the compilation of organisations that have achieved some business sustainability via IoT products. It would be a great source of the stats you seek but I think it's still a work in progress. There's about 180 of us in the "startups" worksteam (WS6) so there's plenty vying for some traction. There's a scattering of good news stories getting about but I'm not aware of a list yet...
  22. I don't know where people keep getting that notion. I suspect it is fuelled by works of science fiction. Machine learning does not keep getting better with more training. It reaches a point where it starts to either specialise (ie. it has learned the training set so well that it can no longer generalise) or the accuracy hits an asymptote (ie. there is no better hyperplane that divides the input vector), at which point it is over trained. Getting machine learning right is about ensuring you implement the right stopping conditions. And the machine learning referenced by Jeff Clune in the article
  23. I really did get inspired when read the two original stories. But as usual in this field, I think imagination is getting well ahead of reality. The "as it gets better" argument really doesn't hold much water when you're talking about a system that provides diminishing returns. I love the potential of image recognition. But it's just one coarse view on the world. It's foiled by shadows, darkness, occlusion, contrast, reflections and so on. AI-based image recognition learns patterns that can often be so at odds with the way we understand vision to be useful, that it fails in specularly biza
  24. But can it run Crysis? Seriously, these are fascinating. The mind just boggles at the implications. There'll be some niches where the size is a gamechanger (inside the body, "smart dust", etc.), but for many practical purposes the size might be a hindrance. The power requirements though - potentially indefinite battery life in indoor lighting - raises some interesting prospects.
  25. 16-May-17 is good for me if I can be of assistance. Will be a big month for IoT in Newcastle with a highly anticipated IoT Pioneers Meetup early May and the inaugural Hunter Innovation Festival IoT Workshop late May.
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