Safety is important when arranging events. And there are a lot of things to consider to make the event safe for everybody (I know from experience from several event I have been working with). Control Geek blog writes about US Event Safety Alliance Document in Public Review. The Event Safety Alliance is a group of →
Solving a Rubick’s Cube with LEGO and popsicle sticks The user enters the cubes state into a python GUI, which the solves the cube using the beginners layer by layer method. It then sends the solution to the Arduino via (usb) serial, which then solves it. →
Mozilla announced a new WebGL demo: Crypt Demo. This Crypt Demo is a great example for how far browsers have come and for the cross-platform experiences developers can now create without having to rely on plugins. The demo is written by ACTISKU‘s Anthony Liot. The demo should run in most modern browsers that support WebGL →
Inadequate shielding and bad grounding are often blamed when measurements are inaccurate, especially in high-impedance applications. Understanding grounding, shielding, and guarding in high-impedance applications article tells tells that in fact, shielding and grounding problems are frequently responsible for measurement errors, but many test system developers aren’t quite sure why. Many measurement errors can be traced →
In my Audio and video signal susceptibility classes I wrote that digital video interfaces like DVI and HDMI can also have ground loop noise problems as they use a combination of balanced and unbalanced signals. Ground loop problem is one very possible source of intermittent problems over long distance in HDMI installations. This article is →
HDMI uses copy protection system called HDCP. And I have know for some years that HDMI copy protection broken. But based on recent information that has popped out it seems that it is even more broken that I thought that it was. Hackaday tells that HDMI breakout lets you sniff HDCP crypto keys and points →
Understanding Ajax vulnerabilities article is an introduction how to protect the web applications you create with Ajax. Because of its range of functions and ease of use, Ajax is one of the most widely used tools for building web applications today. All applications, including those built using Ajax technologies, are vulnerable to exploits that compromise →
Here are some pointers to useful audio electronics design articles that touch grounding and shielding issues: Grounding and Shielding Audio Devices Grounding The Circuit Designer’s Companion →
Cracking open a 24-port switch so you don’t have to posting at Hackaday point to an article Tear-Down of an HP ProCurve 2824 Ethernet Switch that is worth to check out for everybody interested in device tear-downs and Ethernet. Tear-Down of an HP ProCurve 2824 Ethernet Switch article shows you the technology inside a managed →
I wrote last week about EMF measurements. Here is more information on the DT-1180 2.3″ LCD Screen Electromagnetic Radiation Detector I used for electrical field measurements. DT-1180 2.3″ LCD Screen Electromagnetic Radiation Detector is a meter designed for electric fields and RF field measurements. DT-1180 2.3″ LCD Screen Electromagnetic Radiation Detector measures low frequency electrical →