In this video we will be having a look at a very versatile component, the TL431 IC. I used it in the feedback loop of my DIY switched mode power supply and thus got interested in it. That is why I will show you how it works, how you can use it in lot of different circuits and also how it functions in feedback loops of for example voltage converters. Let’s get started!
Designed with modularity in mind, this build wasn’t exactly straightforward — and Kent discusses the troubleshooting stage in detail.
Engineer Sam Kent has designed a modular Eurorack-compatible stereo DJ mixing system, featuring XLR and line-level outputs, a cuing system, and volume meters.
“Inspired by Eurorack modular synthesizers and the boutique mixer market, the project aims to design and build a simple and customisable DJ mixer,” Kent explains. “The design is op-amp based, with filters implemented as 12db/oct active inverting filters, 10k ohm output impedances, and buffered potentiometers acting as voltage dividers for the controls.”
What just happened? A hacker appears to have leaked the entirety of livestreaming service Twitch, from the source code and user payouts to encrypted passwords. It’s recommended that all users change their passwords, enable two-factor authentication, and reset their stream key.
A 4Chan user posted the 125GB torrent link on the forum earlier today, saying it was to “foster more disruption and competition in the online video streaming space” because “their community is a disgusting toxic cesspool.”
As much fun as Doom was, it felt more like a gory cartoon with most of the scares coming from enemies hidden behind doors and blind corners. Quake, on the other hand, felt endlessly creepy and scary thanks in part to its real-time lighting that helped set the mood. To make any room feel as spooky, Rodrigo Feliciano went back to the game’s original source code to make a flickering Quake lamp.
What exactly is going on with the power grid where Quake takes place is anybody’s guess—there’s zero chance those buildings are up to code—but as someone discovered back in June, the moody lighting in Half-Life: Alyx used the same flickering code as the original Half-Life, and that code can actually be traced all the way back to Quake, which was created by id Software’s John Carmack over 25 years ago.
A high-speed projector and camera combine to create a convincing virtual air hockey experience with limitless possibilities.
Many an hour has been whiled away in arcades by friends playing a game of air hockey. Just because this game is a classic does not mean that there is no room for improvement, however. Those that frequently faceoff at the air hockey table may have even noticed the occasional use of special lighting and sound effects to increase engagement in the game. But due to the high-speed nature of the game, enhancements do not normally go much further than that.
Using math to create digital songs on a PCB the size of a cassette tape.
One look at the MMXX T-APE from PhonicBloom, and you know for sure it creates exciting music. The cassette tape form factor may suggest analog sound. However, it generates sounds digitally using a trick up its reels. The primary sound creation mode relies on fractals, not samples! (Although it does support samples and wavetables too.)
I’ve previously built several robot dogs which used a variety of servos and brushless motors. The most agile robot dogs are the ones with back-drivable low-ratio reducers which allows the motor to be back-driven so we get some natural spring in the legs – which can be controlled on the fly with software. So it’s time for openDog V3 – this version uses my Cycloidal Drives which I’ve developed over the last few months. I will eventually publish the CAD and code as open source when it works.
The Hackaday comments section has become infamous for a recurring theme that goes something like “I don’t know why they used an Arduino, they could have done it with a 555 timer!” If you’ve ever thought the same way, then this post is for you!
What is The Most Important Device In The Universe, then? It’s the Modern Props #195-290-1, a movie prop originally built in the 1970’s. It’s a product of the creative mind of [John Zabrucky] who founded Modern Props in 1977 to serve Sci-Fi television and movie productions that wanted to invent the future with their props. Known for their high quality and impeccable craftsmanship, Modern Props’ products were in demand until the day they closed the doors so that [John] could retire.
This is the Varjo XR3, legit the best VR and XR headset I have ever used. Some of my experiences in this video could be categorized as a life changing experience, especially in the Virtual World. This was one of the coolest devices I have ever used. I want to thank Foxguard solutions for letting me borrow this headset for a while to make a video. They are a reseller of Varjo products.
If you are interested, here’s a link: https://foxguardsolutions.com/
