As you might know I am regularly looking into indoor-location systems and opportunities to optimize my own system (based on Bluetooth…)
Now I cam across a concept by a german company called Localino. They’ve built their own hard- and software.
Localino has its own “satellites”, also called “anchors”. The mobile receivers are called “tags” and can locate their position based on the available anchors inside a building. Anchors and tags precisely measure signal propagation delays in the order of sub-nanoseconds, resulting in centimeter-accurate location. Any person or object wearing a tag can be located.Localino website
There’s also a hack-a-day article on the system which states that all hard- and software would be open source. So far I did not find any source code though…
As far as I could dig into this so far it’s based upon decawave DW1000 hardware and an older base-library of this is available as source code here.
I am back again and developing some smaller APIs for my own use.
As I am learning a new programming language and framework (SwiftUI) and for my little learning project I need to also implement a server backend. Implementing a RESTful service is quite straight-forward but for testing and UI prototyping I actually want to do some testing before really setting up the server side.
To easily test RESTful calls without actually implementing anything I found that Reqres is a quite useful tool to have in the toolbelt:
Apart from some pre-set-up API endpoints with dummy data (like users, …) it also features a request mirror service.
With that you can simply throw a JSON document into the general direction of Reqres and it will put a timestamp on it and return it right away.
I am surely hoping to be able to make it to the parade. And for that the preparation as a good foreigner includes making myself aware of the regulations that apply during the event.
The important information on this can be found here.
Somebody had to do it. Maximilian Stadlmeier did:
User space network drivers on Linux are often used in production environments to improve the performance of network-heavy applications. However, their inner workings are not clear to most
programmers who use them. ixy aims to change this by providing a small educational user space network driver, which is gives a good overview of how these drivers work, using only 1000 lines of C code.
While the language C is a good common denominator, which many developers are familiar with, its syntax is often much more dicult to read than that of more modern languages and makes the driver seem more complex than it actually is.
For this thesis I created a C# version of ixy, named ixy.cs, which utilizes the more modern syntax and additional safety of the C# programming language in order to make user space network driver development even more accessible. The viability of C# for driver programming will be analyzed and its advantages and disadvantages will be discussed.
The actual implementation (with other programming languages as well) can be found here.
Apparently it’s not as slow as you might think:
- SwiftUI lernen: https://developer.apple.com/tutorials/swiftui/resources
- Android Studio: https://developer.android.com/studio
- PushOver DDoS: https://blog.pushover.net/posts/2019/10/october-24-25-ddos-attack
- DDoS: https://en.wikipedia.org/wiki/Denial-of-service_attack
- Android API Level: https://source.android.com/setup/start/build-numbers
- Streamsheets: https://cedalo.com/produkt/
- Streamsheets Docker: https://hub.docker.com/r/cedalo/streamsheets-installer
- Hörer Fabian startet mit Node-Red: https://www.youtube.com/watch?v=KMgIa0l_ukQ
- Xerox scanners/photocopiers randomly alter numbers in scanned documents: http://www.dkriesel.com/en/blog/2013/0802_xerox-workcentres_are_switching_written_numbers_when_scanning
- EzControl XS1: http://www.ezcontrol.de/content/view/36/28/
- FS20: https://de.wikipedia.org/wiki/Funksysteme_zur_Geb%C3%A4udeautomatisierung
- ELV MAX: https://de.elv.com/technik-fuer-ihr-zuhause/heizungssteuerung/systemuebersicht-heizkoerperthermostate/max-funk-heizungsregler-system/
- ELV MAX Library: https://github.com/bietiekay/MAXSharp
- SDR Wettersensor: https://www.kompf.de/weather/rtlsdrsensor.html
- NodeRed: https://nodered.org/
- Höhere Gehälter für IT Experten https://www.heise.de/newsticker/meldung/Oeffentlicher-Dienst-Bundestag-beschliesst-Zulagen-und-Praemien-fuer-IT-Experten-4569784.html
- Ice Lake CPU: https://en.wikipedia.org/wiki/Ice_Lake_(microprocessor)
- USB-C: https://en.wikipedia.org/wiki/USB-C
- Quickcharge 3 für Arduino: https://www.schrankmonster.de/2019/09/18/quickcharge-3-qc3-enable-your-arduino-project/
- Android Espresso: https://developer.android.com/training/testing/espresso
- JUnit: https://junit.org/junit5/
- WebBrowser UI Testing: https://www.seleniumhq.org/
- Appium: http://appium.io/
- Visual Studio 2019: https://devblogs.microsoft.com/devops/changes-to-coded-ui-test-in-visual-studio-2019/
- Elite: https://en.wikipedia.org/wiki/Elite_(video_game)
- Elite Dangerous: https://www.elitedangerous.com/
- Galaxie: Milchstraße: https://de.wikipedia.org/wiki/Milchstra%C3%9Fe
- Trappist-1 System: https://de.wikipedia.org/wiki/Trappist-1
- Elite Dangerous VR: https://www.youtube.com/watch?v=Fa0b2Kd2xhU
- IPv6 https://de.wikipedia.org/wiki/IPv6
- IPv4 https://de.wikipedia.org/wiki/IPv4
- Carrier grade NAT https://de.wikipedia.org/wiki/Carrier-grade_NAT
- NAT64 https://de.wikipedia.org/wiki/NAT64
- aText Mac: https://www.trankynam.com/atext/
- Autohotkey Windows: https://www.autohotkey.com/
Boomtime 5 Aftermath: The Apostle Malaclypse the Elder’s Holyday. A wandering Wiseman of Ancient Mediterrania (“Med-Terra” or middle earth), who followed a 5-pointed Star through the alleys of Rome, Damascus, Baghdad, Jerusalem, Mecca and Cairo, bearing a sign that seemed to read “DOOM”. (This is a misunderstanding. The sign actually read “DUMB”.)
To create a bigger reflux of thoughts:
Synchronet Bulletin Board System Software is a free software package that can turn your personal computer into your own custom online service supporting multiple simultaneous users with hierarchical message and file areas, multi-user chat, and the ever-popular BBS door games.
Everything there to set-up a BBS. Maybe I really need to get out a backup of my old BBS and bring it back online?!
Somebody made a live tracking 3D map of a big portion of Tokyos public transportation system:
Of course also available in 2D.
- Folge mit Miataru HTP001: https://podcast.hack-the-planet.tv/2019/08/09/episode-0/
- Miataru http://miataru.com
- MyFitnessPal https://www.myfitnesspal.com
- New File Menu https://try-catch-finally.net/2019/09/24/easy-file-menu-for-macos/
- Xerox Star https://en.wikipedia.org/wiki/Xerox_Star
- Musashikosugi Typhoon Fotos → https://photos.app.goo.gl/56VtqNNP9unjzQw29
- Emperor Japan Parade https://www.keishicho.metro.tokyo.jp/kotsu/doro/regulation/ceremony_kisei.files/chirashi_e.pdf
- Tokyo Stadtnamen in iOS ersetzen:
- TypeTasker Text Replacement: https://www.schrankmonster.de/2019/09/24/simple-windows-text-expander/
- Cherry G80-3000 https://www.cherry.de/cherry-g80-3000.html
- DasKeyboard: https://www.schrankmonster.de/2012/08/04/daskeyboard/
- DasKeyboard: https://www.daskeyboard.com/
- Kosugi Festa 2019: http://kosugifesta.com/
- Wireless Mac Keyboard von damals: https://geekhack.org/index.php?topic=6528.0
- Synology https://www.synology.com/de-de
- Prusa Mini 3D Drucker – https://www.prusa3d.com/original-prusa-mini/
- OSS Extruder: https://www.sciencedirect.com/science/article/pii/S2468067218300208
- MyFitnesspal selbst bauen: https://www.schrankmonster.de/2019/10/19/replacing-myfitnesspal/
- Public REST API https://www.hack-the-planet.net/2019/09/02/public-rest-apis/
- Swift Programming Language: https://docs.swift.org/swift-book/
- SwiftUI https://developer.apple.com/xcode/swiftui/
- HUD https://www.schrankmonster.de/2019/02/09/head-up-display-esthetics/
- HealthPost https://apps.apple.com/de/app/health-post/id1441893550?l=en
- FHIR https://en.wikipedia.org/wiki/Fast_Healthcare_Interoperability_Resources
- RaspberryPi https://www.raspberrypi.org/forums/viewtopic.php?p=1252786#p1252786
- XNA – XNA’s not acronymed https://en.wikipedia.org/wiki/Microsoft_XNA
- RISC-V https://youtu.be/67KW4t42SZk
- Unicode https://en.wikipedia.org/wiki/Unicode
Today I learned that the Apple iPhone re-purposes the IMAP protocol to implement the voice mail feature.
By sniffing the network traffic it was possible to examine the IMAP protocol revealing username and the corresponding hashed password (which allows to repeat a successful login) and of course all voicemail files. We want to highlight, that all the voicemail files have been transferred unencrypted.Assessment of Visual Voicemail from 2012
Well, it’s about time to do something about MyFitnessPal. In our family we’re using their service by the daily. But just for logging. No reports, no further features used.
But still, we were using it for quite a time now:
The service has started to roll out ads for some time now in their apps. There are only iOS / Android apps available. And a mediocre website.
In addition the whole integration has never gotten to a point where I would have decided to upgrade to the paid premium version. No functionality ever got added. No interfacing with scales, no optimizations for UI/UX, …
But they now reduce the functionalities and service and want me to cough up a bit of money:
I am not generally against subscriptions. But I am not getting 9,99 Euro of value out of the service. A shared google sheet would almost achieve parity. And the price itself is just not value based. For 2 Euro I probably would not feel the urge to move on. For 9,99 (times 2 for 2 accounts) make me move.
So I’ve sat down with my wife and we scribbled up some things we want to have in a replacement. The content and feature-set is agreed. Now I’ll throw up a prototype app.
It’ll be integrated with the MQTT scales. And with the flow we came up with we hopefully will reduce the interactions dramatically over MyFitnessPal. And it’ll never stop saving history. And I’ll learn something new.
The 73rd and Last Day of the Season of Bureaucracy. Eye Day is celebrated by playing Discordian Games.
A lot is going on in browsers these days. They are becoming increasingly powerful and resource-demanding.
So it just feels natural to combine high resource usage infrastructure with low resource using graphics to get the worst of both worlds.
Not quite, but you get the idea.
There’s a guy on the internet (haha) who dedicates time to write ASCII / character based graphics engines and games with it.
Of course, what’s that games and graphics?
And the more advanced Exhibit #2:
I gave Rifftrax a swing in 2006 when they started their project. Now it’s time for a revisit.
Rifftrax was created by the same people that created and made the series “Mystery Science Theater 3000” so successfull.
Think of this: You go to the movies. Bad movies mostly. And there are 3 of your friends next to you and constantly commenting the movie – in a funny way.
Since MST3k had ended a long long time ago the people behind it have started to do the same with current movies. And this they called “Rifftrax”:
Mike Nelson, Bill Corbett and Kevin Murphy, the former stars of Mystery Science Theater 3000, create commentaries for B-movie oddities and Hollywood blockbusters. It’s like watching a movie with your funniest friends!
Their catalog has grown from 0 in 2006 to over 222 full length feature movies and much much more shorts.
If you have never experienced their art: Give them a try. You’ll probably laugh a lot!
There’s the DJI drones that seemingly own the market at this point. Mostly used to take aerial images and movies. Your average YouTuber will probably have two or more of them.
Turns out that, if you add modern camera technology to these small flying objects and a lot of processing power you can do crazy things like indoor realtime 3D mapping…
Skydio is a vendor to look at when it somes to such interesting mapping applications.
The first sound card I got as an upgrade to a PC without sound back in 90s was the glorious Sound Blaster 16:
There were several different sound card options back in the days and all sounded a bit different.
A sound card (also known as an audio card) is an internal expansion card that provides input and output of audio signals to and from a computer under control of computer programs. The term sound card is also applied to external audio interfaces used for professional audio applications.Wikipedia
With the synthesizers and audio processing each series and make produced a distinctive sound. Some of us want to bring these sounds back. But keeping the (old) hardware running is an increasingly difficult task.
For example: The interface used by the above mentioned Sound Blaster 16 card is the ISA bus interface. This interface was introduced in 1981 and replaced in 1993. If you want to hear how such a sound card sounds today you would have to run hardware from this time period.
But some people are working towards getting at least some authentic sound back.
In this talk, Alan Hightower takes a look at the complexities, challenges, and even current progress at integrating all of the above cores into one FPGA based ISA sound card.
This is what the concept would bring if done:
Oh that would be soooooo nice to have all these vintage sound interfaces available and to be able to actually use them for audio output.
Setting Orange 66 Bureaucracy: A Discordian Holy Day of Fondle and Gropage, when all Discordians should grab their Legislative Representatives by the goolies and cry out “Where’s my Bill of Rights, you bastard?!”
On this day in 3025 YOLD (12 October 1859 AD), His Imperial Majesty, Emperor Norton I, Emperor of the United States and Protector of Mexico, ordered the Congress of the United States to dissolve.
“Fraud and corruption prevent a fair and proper expression of the public voice; that open violation of the laws are constantly occurring, caused by mobs, parties, factions and undue influence of political sects; that the citizen has not that protection of person and property which he is entitled.”Habeas Corpus Day
Collection of 8000+ publicly available IPTV channels from all over the world.
Internet Protocol television (IPTV) is the delivery of television content over Internet Protocol (IP) networks.Github: iptv-org/iptv
Using the streams is as simple as it gets: Just open the provided playlilst files in your favorite media player. The above example is th VLC media player.
Apparently it’s quite simple to turn an iPad app into an macOS app…
Back in March 2019 we’d already seen artificial people. Yawn.
Back then a Generative adversarial network (GAN) was used to produce random human faces from scratch. It synthesized human faces out of randomness.
Now take it a step further and input actual small images. Like thumbnails or emojis or else.
And what do you get?
Quite impressive, eh? There’s more after the jump.
Oh and they wrote a paper about it: Progressive Face Super-Resolution via Attention to Facial Landmark
I like location based stuff. I like QR codes. There is something that combines both.
Munzee is the next generation in global scavenger hunt games.
Track down QR Codes hidden in the real world and capture them for points. Whether you are a casual player, an avid explorer, or a hardcore competition enthusiast, Munzee helps you rediscover the world around you.
A month ago I wrote about a very black paint. This month brings me a papepr about an even blacker substance.
The synergistically incorporated CNT–metal hierarchical architectures offer record-high broadband optical absorption with excellent electrical and structural properties as well as industrial-scale producibility.Paper: Breakdown of Native Oxide Enables Multifunctional, Free-Form Carbon Nanotube–Metal Hierarchical Architectures
We all know this. You typed a loooong line of commands in your shell and you made one typo.
That’s the worst.
Now. There’s a command that aims to help:
It is rather simple. But extremely effective.
The Fuck attempts to match the previous command with a rule. If a match is found, a new command is created using the matched rule and executed.
Grab it on github. Install it right away. It went into my toolbelt in an instant.
I played with SDR – Software Defined Radio – back in 2013. I’ve still got the equipment around.
Now that I am thinking about it – there is a practical use-case that I will look into in the coming months for sure for it. And just to mention this use case here: With SDR I could create a more versatile 443/886 Mhz receiver.
Anyhow. SDR hardware allows you to access a whole spectrum of radiosignals at once. And a common way to visualize the spectrum is to draw the amplitudes in a line add each new measurement as a new line – color/brightness coded.
What you get is some sort of waterfall diagram that looks like this:
Hertzian Landscapes (2019) is a live visualization of the radio spectrum. Unlike visible light, waves in the radio spectrum cannot be perceived by us directly yet this space is teeming with human activity. Hertzian Landscapes employs a digital receiver to scan large swaths of radio spectrum in near real-time and visualizes thousands of signals into a panoramic electromagnetic landscape. Users can zoom in to specific frequencies by positioning themselves in front of the panorama as if controlling a radio tuner with their body, giving them a sense of walking through the spectrum.http://www.hertzianlandscapes.com/
From radio broadcasts to weather satellites and from medical implants to aeronautical navigation, the radio spectrum is divided into hundreds of designated slices each tied to a specific application. Based on a localized frequency database that describes these slices, signals are annotated to provide information about their theoretical type and application.
After looking into the NES emulation written entirely in C# I came across a similar approach using C# to emulate a full and much more complex PlayStation 1.
I then stumbled on this very early version of a PSX Emulator in C#.
Now, if you were to theoretically have a Playtation SCPH1001.BIN BIOS and then physically owned a Playstation (as I do) and then created a BIN file from your physical copy of Crash Bandicoot, you could happily run it as you can see in the screenshot below.
If you’re old enough to have used MS-DOS you know the benefits a read cache introduced back at the time for floppy disks. Without such a cache everything data intensive was magnitudes slower.
Now after all these years more and more stories emerge about how certain thresholds and timeings where set back in the days.
This is such a story:
Mark Zbikowski led the MS-DOS 2.0 project, and he sat down with a stopwatch while Aaron Reynolds and Chris Peters tried to swap floppy disks on an IBM PC as fast as they could.
They couldn’t do it under two seconds.
So the MS-DOS cache validity was set to two seconds. If two disk accesses occurred within two seconds of each other, the second one would assume that the cached values were still good.Raymond Chen blog
There are more links in the original article – so go there and down that rabbit hole!
SuperCollider is a platform for audio synthesis and algorithmic composition, used by musicians, artists, and researchers working with sound. It is free and open source software available for Windows, macOS, and Linux.
SuperCollider features three major components:
scsynth, a real-time audio server, forms the core of the platform. It features 400+ unit generators (“UGens”) for analysis, synthesis, and processing.
sclang, an interpreted programming language. It is focused on sound, but not limited to any specific domain. sclang controls scsynth via Open Sound Control.
scide is an editor for sclang with an integrated help system.
I do not drive motor cycles. I never found a reason to.
Given that non-experience: I can only assume that something like this helmet would really make a difference for bikers.
With the integrated camera system it will have a rear-view mirror screen in sight all the time and be able to overlay all sorts of information into the field-of-view of the driver. In addition it seems to be capable to augment the audio getting to the driver in various ways.
If you are as interested as I am, despite not having a motorcycle: take a look at the Indiegogo campaign.