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Flowhub IoT workshop at Bitraf: sensors, access control, and more
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bergie.iki.fi
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9 years ago
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eng
I just got back to Berlin from the Bitraf IoT hackathon we organized in Oslo, Norway. This hackathon was the first of two IoT workshops around MsgFlo and Flowhub IoT . The second will be held at c-base in Berlin this coming weekend. Bitraf and the existing IoT setup Bitraf is a large non-profit makerspace in the center of Oslo. It provides co-working facilities, as well as labs and a large selection of computer controlled tools....
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If you’re a mobile app developer, at some point in time you’re going to need to interact with a backend. One of the tasks you might need to do is to retrieve and display images from a server, or submit an image to that server. What format should the image be in when you’re submitting it? How do you convert bytes received from a service call into an image? Let’s build the entire stack from the server to an iOS App to find out how. Setting....
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When discussing the features Chen slipped in just in the last minute of 3.7 I mentioned there were two such features but only discussed the desktop skin . The second one is a more terse/logical API for calling REST web services using the builder pattern. I actually discussed this briefly in the how do i video for networking & web services near the end. But that’s one of those details that might have easily been missed in that video…
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This node app generates random json maps compatible with Tiled and Phaser.js. It uses a cellular automata algorithm to generate the background and then randomly places objects on the map. First set a birth and death rate as well as various spritesheet tiles for your background and objects then run app.js. The json output can […]
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Sparkpost API Docs Sparkpost Python Git repo Sparkpost Python Client Library Docs Sparkpost has a generous free email quota (100,000 per month as of this writing). I’m using this to send notifications from the inventory system, which doesn’t have a notification system. First use case: Send weekly notification to show what shipments are still on the water i.e. in transit. Currently the status of shipments can be obtained by going ..
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Building a privacy-preserving architecture with less server trust
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www.thoughtworks.com
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9 years ago
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eng
Before ever having worked on a related field, I had always thought of privacy as a matter of having the strongest encryption method in the market and using it everywhere. However, recently, I've had the privilege of working on the development of a privacy-preserving email client called Pixelated, which seeks not only to decentralize control of data, but also to make privacy accessible to the non tech-savvy user through a modern email interf..
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During the final stages of the 3.7 release cycle we had a lot of material to go thru and Chen slipped a couple of features that we just didn’t have the time to discuss. One of those features is the new desktop skin which is a special case skin to debug desktop and JavaScript apps. Unlike other skins it doesn’t scale, it resizes the UI when you resize it. It has no skin decorations except for a small bar at the bottom that indicates the cu..
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Since moving to Jekyll last year, I’ve done relatively little to tweak the inner workings of this site. After all, one of the most appealing things about having a static site is that it doesn’t need to have a lot of moving parts. It just works. But today I finally got around to a couple of housekeeping items that have been on my list: image captions and MathJax. Image captions For image captions, I settled on a beautifully simple so....
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Apache Flink has hit version 1.3 lately and the SQL support has been extended. You can find what is supported from the docs. In this blog post, I will be giving a small example for using Streming SQL a Tumbling Window. Consider you are streaming room temperatures that are being read from many sensors. You want to find the average tempetarute in windows of 10 seconds and act upon it. You want to do it in SQL.
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I wrote in the past about importing a Codename One demo from github but I left the whole working with git as an open subject. Mostly because I considered it a bit out of scope for the discussion. I have a section in the free online course about the anatomy of a Codename One application which I completely forgot to upload until I wrote this! If you want to understand more, I strongly suggest watching that as it explains a lot of the “w..
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This year Postgres open and PGConf SV have combined to great a bigger and better conference right in downtown San Francisco. I’m obviously biased as I’m one of the co-chairs, and I know every conference organizer says picking the talks was hard, but I’m especially excited for the line-up this year . The hard part for me is going to be which talks do I miss out on because I’m sitting in the other session that’s ongoing. You can see the full....
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This year Postgres open and PGConf SV have combined to great a bigger and better conference right in downtown San Francisco. I’m obviously biased as I’m one of the co-chairs, and I know every conference organizer says picking the talks was hard, but I’m especially excited for the line-up this year . The hard part for me is going to be which talks do I miss out on because I’m sitting in the other session that’s ongoing. You can see the full....
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1300 words, 4 and a half minutes. This will probably be the first and last time I write about social networking. I’m an antisocial social networker. I had an expectation that part of the job of a networking platform (professional or social) would be to filter content or updates, both in terms of who was posting them and the individual significance or quality of the posts. Boy was I wrong. One person re-posts every single article they see, a..
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We're back! During the week of WWDC, I spoke at CocoaConf Next Door, and one of my talks involved a dissection of objc_msgSend's ARM64 implementation. I thought that turning it into an article would make for a nice return to blogging for Friday Q&A. (Read More)
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Friday Q&A 2017-06-30: Dissecting objc_msgSend on ARM64 Friday Q&A 2017-06-30: Dissecting objc_msgSend on ARM64 We're back! During the week of WWDC, I spoke at CocoaConf Next Door, and one of my talks involved a dissection of objc_msgSend's ARM64 implementation. I thought that turning it into an article would make for a nice return to blogging for Friday Q&A. Overview Every Objective-C object has a class, and every Objective-C....
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550 words, 2 minutes. Final Remarks “All men can see the tactics whereby I conquer, but what none can see is the strategy out of which victory is evolved” - Sun Tzu. This is the 6th and final post in a short series on winning systems for security practitioners. The first postfeels like a while ago already, about 6000 words or 25 minutes. Those minutes haven’t been wasted. The Inevitable Car Analogy If you’ve come this far then you’ve alread..
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1450 words, 5 1/2 minutes. Resilience “In defeat: Defiance” - Winston S. Churchill. This is part 5 of 6 in a short series of posts on winning systems for Information Security practitioners. It aims to plug the gap between policy and products and put you, the practitioner, back in the driving seat. After all if you don’t know what system you’re implementing, how can you decide what products or features are important to you?
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1200 words, 5 minutes. Robustness “The first virtue in a soldier is endurance of fatigue." - Napoleon Bonaparte. This is part 4 of 6 in a short series of posts on winning systems for Information Security practitioners. It aims to plug the gap between policy and products and put you, the practitioner, back in the driving seat. After all if you don’t know what system you’re implementing, how can you decide what products or features are import..
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1100 words, 4 1/2 minutes. Responsiveness “No battle plan ever survives contact with the enemy” - Helmuth von Moltke. This is part 3 of 6 in a short series of posts on winning systems for Information Security practitioners. It aims to plug the gap between policy and products and put you, the practitioner, back in the driving seat. After all if you don’t know what system you’re implementing, how can you possibly decide what products or featu..
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1100 words, 4 1/2 minutes. Preparation “One of the best ways to keep peace is to be prepared for war” - Plato & others. Today attacks come thick and fast. The chances are that all public IPv4 address space is regularly scanned. Time-to-compromise of an unpatched, non-firewalled, Microsoft Windows host is about 5 minutes. Systems are attacked not because they are valuable, but because they are vulnerable. Even an old cable-modem is a useful ..
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1100 words, 4 1/2 minutes. Introduction “Never tell people how to do things. Tell them what to do and they will surprise you with their ingenuity." - George S. Patton If you’ve read my previous postyou’ll know that to get beneficial, long lasting, low-maintenance results in Information Security, you need winning systems. Not skills. If you like grinding monotony punctuated by periods of extreme stress and being able to tell people how busy ..
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Command to read in a media file and publish to a server/relay via RTMP. Requires ffmpeg Read more…
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1100 words, 4 minutes. This post is one of a short series on structural and systemic things the Information Security industry does wrong, and what we might do about them. Disclaimer: I advocate lifelong learning, that includes professional training, product training, workshops, online or in-person courses, and academic study. The professional trainers I know who author and deliver their own material are among the most mentally agile people ..
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Cucable Maven plugin for parallel execution of Cucumber scenarios
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tech.trivago.com
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9 years ago
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eng
Running Cucumber scenarios in parallel can be tricky, especially when a custom test runner is used. That's why we created Cucable - a Maven plugin to split test scenarios into smaller chunks that can be run at the same time.
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Cucable Maven plugin for parallel execution of Cucumber scenarios
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tech.trivago.com
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9 years ago
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eng
Running Cucumber scenarios in parallel can be tricky, especially when a custom test runner is used. That's why we created Cucable - a Maven plugin to split test scenarios into smaller chunks that can be run at the same time.
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assets/communication-tower.jpg) _[Communication Tower](https://flic.kr/p/finMno) by [Cocoy Pusung](https://www.flickr.com/photos/95876508@N02/), on Flickr_ Organizations tend to use some instant messaging platform in addition to email. Ideally, the chosen platform permeates throughout the ranks of the organization instead of having fractured communication between members. The real-time and group collaborative nature of these messaging pla....
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I finally put together a landing page for the little random demos I build from time to time because, you know, CSS is my hobby. SingaporeCSS is our meetup…
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The article discusses how Kotlin can create internal languages and how developers can use this feature to write powerful domain-specific languages for manipulating untyped data structures in a typed manner.
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Sometimes the development feedback loop can be slow when working with serverless functions. This posts walks through some quick tips I use to speed things up
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Alex Casalboni presents his Serverless Service powered by AWS Step Functions and the Serverless Framework to optimize your Lambda Functions performance and costs.
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I've read through a lot of vimrc's, borrowing a line here or there over the past 5 years! The best nuggets and my own findings are all distilled here for your perusal. What's the best way to use this? Skim through, find something that sounds interesting and try it out …
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I've read through a lot of vimrc's, borrowing a line here or there over the past 5 years! The best nuggets and my own findings are all distilled here for your perusal. What's the best way to use this? Skim through, find something that sounds interesting and try it out …
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A method for signing in to a device that doesn’t have a keyboard When we were developing our SoundCloud app for Xbox One, something became very obvious during usability testing: signing in with a game controller really sucks. Entering text requires navigating a virtual keyboard to individual letters, numbers, and characters one at a time – such a nightmare! Plus, letters, numbers, and special characters are spread across three screens. The ..
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A method for signing in to a device that doesn’t have a keyboard When we were developing our SoundCloud app for Xbox One, something became very obvious during usability testing: signing in with a game controller really sucks. Entering text requires navigating a virtual keyboard to individual letters, numbers, and characters one at a time – such a nightmare! Plus, letters, numbers, and special characters are spread across three screens. The ..
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I’ve written a blogpost for Movio about two Go CLI tools we’ve created, sql and chart, to improve our data tinkering workflow
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OpenMapTiles project can now display multilingual names of places from the OpenStreetMap data very easily.
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If airlines had to nominate a kryptonite, they might point the finger at extreme weather conditions. Adverse weather costs airlines billions annually. While planning ahead and allowing passengers to change their flights ahead of a storm can help reduce the loss, dealing with disruptions are a necessary evil in air travel.
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