Month: March 2020

CloverPI Clusters Up to 4 RaspberryPi Boards (Crowdfunding)

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We’ve seen Raspberry Pi cluster boards before, and most of them either use Raspberry Pi Zero boards or Raspberry Pi Compute Modules. Some examples include Turing Pi Clusterboard for up to 7 RPi CM3 modules, Cluster HAT board taking up to 4 Pi Zero board, and Mininodes Raspberry Pi 3 COM Carrier Board.

But some other solutions like Bitscope rely instead on full-sized Raspberry Pi 2/3/4 Model B boards. Another such option is IPTerra CloverPI board allowing up to 4 Raspberry Pi or compatible boards with 40-pin header to be clustered into a single unit powered by one power supply and connected via a 5-port Gigabit Ethernet switch.

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Samsung Galaxy S20 Ultra Durability Test! – Is it… Ultra Strong?

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Its time to see if the Galaxy S20 Ultra can live up to its name. Grab your TEARDOWN Skin HERE: https://dbrand.com/teardown The with the word ‘Ultra’ in its name, the Galaxy S20 Ultra sounds like the biggest, baddest, best smartphone on the market. But… in reality, it is a great combination of specs, but they are all specs weve seen before in other phones. There is nothing *new* with the S20 Ultra; nothing more than the incremental step forward we always get with new devices. But with that incremental improvement, the price took a huge hike. One small step for phones, but a giant leap for your wallet. ha. Just thought that up myself.

PWM – Pulse width modulation

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PWM is widely used in electrotechnics for lights, chargers, motors, generating different signals, etc. which are all present in robots as well. In short, PWM is a way of expressing analog values in the digital world.

Fundamentals

You have probably wondered how, in the digital world, we can use some other value than supply voltage – which is output value from our microcontrollers like Arduino. The solution for this is PWM, which is essentially a microcontroller turning the output pin on and off very fast so that, for example, rather than seeing LED blinking, our eyes see an average brightness of LED being on and off.

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Plex Slammed By Huge Copyright Coalition For Not Policing Pirates

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Plex has become the latest neutral technology to get slammed for not doing enough to prevent movie and TV show piracy. According to pro-copyright lobby group CreativeFuture, which represents more than 560 companies and organizations, Plex – like Kodi – is a “dangerous digital media player” that has joined the ranks of “internet heavyweights who refuse to take responsibility for the criminal behavior on their platforms.”

In days gone by, living rooms around the world could be found stacked with video cassette tapes full of films and TV shows. Some bought, others recorded at home, these copies would need to be waded through, to find whatever content the owner fancied watching that day.

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Trailer for “Insert Coin,” a new documentary about the creators of the biggest videogames of the 1990s

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“Insert Coin” is a new documentary about Midway, the Chicago-based videogame developer that transformed the industry with Mortal Kombat, NBA Jam, Terminator 2: Judgment Day, and other coin-op classics. Director Joshua Tsui funded the film via this Kickstarter and will premiere at the SXSW Film Festival later this month.

FreeNAS and TrueNAS are Unifying

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FreeNAS and TrueNAS have been separate-but-related members of the #1 Open Source storage software family since 2012. FreeNAS is the free Open Source version with an expert community and has led the pursuit of innovations like Plugins and VMs. TrueNAS is the enterprise version for organizations of all sizes that need additional uptime and performance, as well as the enterprise-grade support necessary for critical data and applications. 

From the beginning at iXsystems, we’ve developed, tested, documented, and released both as separate products, even though the vast majority of code is shared. This was a deliberate technical decision in the beginning but over time became less of a necessity and more of “just how we’ve always done it”. Furthermore, to change it was going to require a serious overhaul to how we build and package both products, among other things, so we continued to kick the can down the road. As we made systematic improvements to development and QA efficiency over the past few years, the redundant release process became almost impossible to ignore as our next major efficiency roadblock to overcome. So, we’ve finally rolled up our sleeves.

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Building an eBay power filter kit (with schematic).

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This is a very common kit on eBay intended for use with audio amplifiers to filter out mains borne noise. It looks as though it’s been copied from another design, but with the usual flaws introduced during the interpretation. Particularly with regard to separation, current carrying path, pad sizing for mechanical strength and a possible swap of MOVs for class Y filter caps.