ASCII browser 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.

Meet MrGumix:

Of course, what’s that games and graphics?

Exhibit #1:

And the more advanced Exhibit #2:

Rifftrax revisited

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.

Credit: Comedy Central

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!

when fly-ready drones get more cameras…

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.

One Soundcard to rule them all

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.

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.


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.

Remember Habeas Corpus day

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

a source of iptv streams

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.

using AI to generate human faces from emojis and thumbnails

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

global QR code scavenger hunt

I like location based stuff. I like QR codes. There is something that combines both.

Meet Munzee:

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.

more blacker

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

Magnificent app which corrects your previous console command

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.

Hertzian Landscapes

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.
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.

C# PlayStation emulation

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.

Scott Hanselman wrote:

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.

Why the MS-DOS floppy disk cache was valid 2 seconds…

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!

Experimental Audio Tool: SuperCollider

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.

AR use-case: Motorcycle Helmet

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.

DIY Lightboard

Usually when we visited lectures the notes and explanations where given on a chalk board or a projector. With the lecturer looking away from the audience most of the time.

This is where Light Boards come in handy. They allow the lecturer to face his audience and give explanations on a board…

Like so:

I was made aways by Ryan Heffernans tweet on the project he did together with his son. He built one of these light boards! The short clip above shows his son on their board.

My son and I built a lightboard. You write on it like a whiteboard, but you can face your audience and the writing is illuminated. Commercial versions cost around $10k, but we made ours for $400 in parts from Home Depot. Here’s how.

Ryan Heffernan Tweet

Of course there are commercial ready-made ones. But where’s the fun in that?

type like you’re a movie hack0r

GeekTyper was inspired by the various media where hacking is usually portrayed incorrectly.
Simply randomly mash your keyboard and code will be simulated on your screen.

This is hilarious! :-) I’ve had way to much fun poking keys while trying it out…

Of course there’s also a screensaver that you can install. Recommended for office use. Not recommended on airplanes and other public spaces.

I’ve just checked with a real person. I’ve used the Visual Studio skin and typed away. Oh the aww.

For those on macOS:

receiving data from deep space with 159 bytes per second

To remind you of the recently celebrated 42nd mission anniversary of the still active and data transmitting Voyager 2 space craft.

NASA’s Voyager 2 is the second spacecraft to enter interstellar space. On Dec. 10, 2018, the spacecraft joined its twin—Voyager 1—as the only human-made objects to enter the space between the stars

Voyager 2 Homepage

And what reminded me of this astonishing achievement.

Think of this: You are flying at >34k miles per hour. You are >18.5 billion miles away from earth. (It’ll take >16 hours at light speed one-way trip from earth to you). And on top, you are still able to send data back to earth at 159 bytes per second.

Mind. Blowing.

Fonts for Coders: Cascadia

Microsoft recently is releasing a lot of tools and assets for developers and terminal monkeys.

This is good. Very nice of them.

The recent release of a font specifically for terminal and code editing use seems worth a mention here:

Cascadia Code was announced this past May at Microsoft’s Build event. It is the latest monospaced font shipped from Microsoft and provides a fresh experience for command line experiences and code editors. Cascadia Code was developed hand-in-hand with the new Windows Terminal application. This font is most recommended to be used with terminal applications and text editors such as Visual Studio and Visual Studio Code.

Cascadia Code announcement

What’s most interesting about this: It’s got code ligatures. Just recently a lot of development focussed fonts showed up and they started to incorporate special characters for development specific character combinations:

Cascadia Code supports programming ligatures! Programming ligatures are most useful when writing code, as they create new glyphs by combining characters. This helps make code more readable and user-friendly for some people.


good wireguard tutorial

If you, like me, are looking into new emerging tools and technologies you might also look at Wireguard.

WireGuard® is an extremely simple yet fast and modern VPN that utilizes state-of-the-art cryptography. It aims to be faster, simpler, leaner, and more useful than IPsec, while avoiding the massive headache. It intends to be considerably more performant than OpenVPN. WireGuard is designed as a general purpose VPN for running on embedded interfaces and super computers alike, fit for many different circumstances. Initially released for the Linux kernel, it is now cross-platform (Windows, macOS, BSD, iOS, Android) and widely deployable. It is currently under heavy development, but already it might be regarded as the most secure, easiest to use, and simplest VPN solution in the industry.

bold wireguard website statement

To apply and get started with WireGuard on Linux and iOS I’ve used the very nice tutorial of Graham Stevens: WireGuard Setup Guide for iOS.

This guide will walk you through how to setup WireGuard in a way that all your client outgoing traffic will be routed via another machine (server). This is ideal for situations where you don’t trust the local network (public or coffee shop wifi) and wish to encrypt all your traffic to a server you trust, before routing it to the Internet.

WireGuard Setup Guide for iOS.

Wave Function Collapse

I’ve written on this topic before here. And as developers venture more into these generative algorithms it’s all that more fun to see even the intermediate results.

Oskar Stålberg writes about his little experiments and bigger libraries on Twitter. The above short demonstration was created by him.

Especially worth a look is the library he made available on GitHub: mxgmn/WaveFunctionCollapse.

Some more context, of questionable helpfulness:

In quantum mechanicswave function collapse occurs when a wave function—initially in a superposition of several eigenstates—reduces to a single eigenstate due to interaction with the external world. This interaction is called an “observation”. It is the essence of a measurement in quantum mechanics which connects the wave function with classical observables like position and momentum. Collapse is one of two processes by which quantum systems evolve in time; the other is the continuous evolution via the Schrödinger equation. Collapse is a black box for a thermodynamically irreversible interaction with a classical environment. Calculations of quantum decoherence predict apparent wave function collapse when a superposition forms between the quantum system’s states and the environment’s states. Significantly, the combined wave function of the system and environment continue to obey the Schrödinger equation.

Wikipedia: WFC

Right. Well. Told you. Here are some nice graphics of this applied to calm you:

Simple Windows Text Expander

If you, like me, once every while need to type the same again and again it might also get tired for you as it got for me.

A specific example: I very frequently need to have the current date available to be entered.

May it be because I need to name a file correctly, prepending it with the current date, or because I need it to refer to a specific date in a text I am currently typing.

The common scheme for dates I am using is YYYY-MM-DD. The 24th of September 2019 becomes 2019-09-24.

click to download

For when I am on Windows I am using a small utility called “TyperTask” to have a system wide shortcut available to me that will enter the current date with the press of a button.

As you can see in the screenshot above. By simply adding / editing the TXT file you will be able to specify new shortcuts. In the above case ALT+D or STRG+SHIFT+D will generated my desired date text pattern.

It’s freeware. It’s from a company that ceased to exist. It’s 60kbyte. Download while supply lasts.

Multi-Sensor board progress

Still working on these

Still lots of errors and challenges to positioning and casing. It works electrically and in software. Does not yet fit into a case.

It’s supposed to get you these sensors accomodated:

  • barometric pressure
  • temperature
  • humidity
  • PIR motion
  • light intensity
  • bluetooth scan/BLE connectivity
  • Wifi scan / Wifi connectivity

And a RGB LED as output. All powered by USB and an ESP32.

Hack-the-Planet Podcast: Episode 006

Episode 006: “Monitoring Release Pipeline” ist fertig und steht bald zum Download und zeit-sourveränem anhören bereit.

Auf der Homepage, im Feed und auf YouTube:

Diesmal unterhält Andreas sich mit mir über:

Booting Faster (with Linux).

Booting a computer does not happen extremely often in most use-cases, yet it’s a field that has not seen as much optimization and development as others had.

Find a very interesting presentation on the topic: How to make Linux boot faster here. The presentation was held at the Linux Plumbers Conference 2019.

Convert HEIC to JPEG or PNG

If you own a modern age phone it’s very likely that it will store the photos you take in a wonderful format called HEIC – or “High Efficiency Image File Format (HEIF)”.

Now the issue with this format is that your average toolchain is based upon things like Portable Network Graphics (PNG), JPEG and maybe GIF or Scalable Vevtor Graphics (SVG).

So HEIC does not quite fit yet. But you can make it fit with this on Linux.

Imagemagick and current GIMP installations apparently still don’t come pre-compiled with HEIF support. But you can install a tool to easily convert an HEIC image into a JPG file on the command line.

apt install libheif-examples

and then the tool heif-convert is your friend.

QuickCharge 3 (QC3) enable your Arduino project

You might have asked yourself how it is that some phones charge up faster than others. Maybe the same phone charges at different speed when you’re using a different cable or power supply. It even might not charge at all.

There is some very complicated trickery in place to make those cables and power supplies do things in combination with the active devices like phones. Many of this is implemented by standards like “Quick Charge”:

Quick Charge is a technology found in QualcommSoCs, used in devices such as mobile phones, for managing power delivered over USB. It offers more power and thus charges batteries in devices faster than standard USB rates allow. Quick Charge 2 onwards technology is primarily used for wall adaptors, but it is also implemented in car chargers and powerbanks (For both input and output power delivery).

Wikipedia: Quick Charge

So in a nutshell: If you are able to speak the quick charge protocol, and with the right cable and power supply, you are able to get anything between 3.6 and 20V out of such a combination by just telling the power supply to do so.

This is great for maker projects in need of more power. There’s lots of things to consider and be cautious about.

“Speaking” the protocol just got easier though. You can take this open source library and “power up your project”:

The above mentioned usage-code will give you 12V output from the power supply. Of course you can also do…:

Be aware that your project needs to be aware of the (higher) voltage. It’s really not something you should just try. But you knew that.

More on Quick Charge also here.