The Wiert Corner – irregular stream of stuff

Jeroen W. Pluimers on .NET, C#, Delphi, databases, and personal interests

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Archive for the ‘Hardware Development’ Category

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Linux-Based Low-Latency Multichannel Audio System (CTAG face2|4)

Posted by jpluimers on 2016/03/24

Just wow (via Joe C. Hecht):

Linux-Based Low-Latency Multichannel Audio System (CTAG face2|4)

We’ve developed a multichannel audio system based on the AD1938 audio codec by Analog Devices and the BeagleBone Green (TI AM335X SoC).The audio system offers 2 stereo inputs and 4 stereo outputs.The whole project is based on open source software.To demonstrate the possibilities of the audio system, I’ve created a surround delay effect with the open source C++ library DSPatch by Marcus Tomlinson.Moreover I’ve created an automatic test based on GNU octave to evaluate the audio system characteristis, such as latency, THD+N, DNR, crosstalk and frequency-response.

Source: Hi there, We’ve developed a multichannel audio system based on the AD1938 au…

–jeroen

Posted in Audio, Development, Hardware Development, Power User | Leave a Comment »

Replace Boxee by Raspberry Pi as most TV support doing video+USB keybard over HDMI

Posted by jpluimers on 2016/02/22

If for instance your Boxee gets old or breaks down, you can use a Raspberry Pi as a replacement with Kodi as media player.

This combination will understand the Video+USB over HDMI which most TV supports officially named HDMI-CEC , but most vendors “invented” their own names (see list below).

The core is the kodi support for CEC.

Basically it comes down to using three cables going to the Pi: Power from TV (or some other source), HDMI to TV, and wired Ethernet. And a distribution for RaspberryPi containing kodi will work, for instance from OpenELEC Mediacenter – Download: Raspberry Pi Builds

Chad MILLER has more details on how to get this to work: My Boxee box is getting old, but I knew of no replacements. The problem is I …

Names known for HDMI-CEC via Wikipedia:

Anynet+ (Samsung), Aquos Link (Sharp), BRAVIA Link and BRAVIA Sync (Sony), HDMI-CEC (Hitachi), E-link (AOC), Kuro Link (Pioneer), INlink (Insignia), CE-Link and Regza Link (Toshiba), RIHD (Remote Interactive over HDMI) (Onkyo), RuncoLink (Runco International), SimpLink (LG), T-Link (ITT), HDAVI Control, EZ-Sync, VIERA Link (Panasonic), EasyLink (Philips), and NetCommand for HDMI (Mitsubishi).

Because of the naming, turning on CEC can be confusing: How to Enable HDMI-CEC on Your TV, and Why You Should

–jeroen

Posted in *nix, *nix-tools, Development, Hardware Development, Hardware Interfacing, HDMI, Linux, Power User, Raspberry Pi | Leave a Comment »

Get a Windows 10 development environment – Windows app development

Posted by jpluimers on 2016/02/16

When you own the full stack:

virtual machine (Build 201602)

These installs contain:

  • Windows 10 Enterprise Evaluation, Version 1511
  • Visual Studio 2015 Community Update 1
  • Windows developer SDK and tools (Build 10586)
  • Windows IoT Core SDK and Raspberry Pi 2 (Build 10586.0.151029-1700)
  • Windows IoT Core project templates (Version 1.0)
  • Microsoft Azure SDK for .NET (Build 2.8.2)
  • Windows Bridge for iOS (Build 0.1.0.160114)
  • Windows UWP samples (Build 2.0.4)Windows Bridge for iOS samples

The VMware VM link redirects to https://windowsdeveloper.azureedge.net/vm-1602/Win10Eval_1602_VMware.zip

Also available for Hyper-V, VirtualBox, Parallels

–jeroen

Source: Get a Windows 10 development environment – Windows app development

Posted in .NET, .NET 4.5, C#, C# 5.0, C# 6 (Roslyn), Cloud Development, Development, Hardware Development, Raspberry Pi, Software Development, VB.NET, VB.NET 14.0, Visual Studio 2015, Visual Studio and tools, Windows Azure | Leave a Comment »

Can a Raspberry Pi do NAT port forwarding to a non LAN address? If so, what…

Posted by jpluimers on 2015/09/19

Can a Raspberry Pi do NAT port forwarding to a non LAN address? If so, what distribution would be the easiest one?

Johannes Self added some nice comments for generic Linux distributions in the G+ thread, but just in case my blog readers have even more concrete answers…

–jeroen

Posted in *nix, Development, Hardware Development, Internet protocol suite, Power User, Raspberry Pi, TCP | Leave a Comment »

HCL:Raspberry Pi – openSUSE

Posted by jpluimers on 2015/05/25

Interesting: HCL:Raspberry Pi – openSUSE.

Posted in *nix, *nix-tools, Hardware Development, Linux, openSuSE, Power User, Raspberry Pi, SuSE Linux | Leave a Comment »

Hack Raspberry Pi – How To Build Apps In C#, WinForms and ASP.NET Using Mono In Pi (via: Amazedsaint’s Tech Journal)

Posted by jpluimers on 2015/02/24

Interesting: Amazedsaint’s Tech Journal: Hack Raspberry Pi – How To Build Apps In C#, WinForms and ASP.NET Using Mono In Pi.

–jeroen

Posted in .NET, Development, Hardware Development, Raspberry Pi, Software Development | Leave a Comment »

I asked +Simon Stuart​ “can you make your Raspberry Pi 2 devices crash by flash light?” he did: it fails!

Posted by jpluimers on 2015/02/09

Too bad: it is indeed possible to restart a Raspberry Pi 2 by using a high power flash.

It appears that U16, the SMPS chip, is the culprit.

Yes, bit of bluetac on that chip and it survives the flash

Source: Raspberry Pi • View topic – Why is the PI2 camera-shy ?

Simon Stuart checked it:

it’s true!

Put the high-power flash (which I believe uses a Xenon bulb) on my camera, and behold a shot to the top of the board does indeed crash it every time!

Never in a million years would I have thought such a thing were possible!

At first Simon could not reproduce it: you really need a high power flash.

I’m glad I didn’t order any Raspberry Pi 2 yet.

–jeroen

via: +Simon Stuart can you make your Raspberry Pi 2 devices crash by flash light?….

Posted in Development, Hardware Development, Raspberry Pi | Leave a Comment »

Raspberry Pi 2 Model B Features Broadcom BCM2836 Quad Core Processor

Posted by jpluimers on 2015/02/02

Dang I bought my Raspberry Pi B+ a few weeks too soon: Raspberry Pi 2 Model B Features Broadcom BCM2836 Quad Core Processor.

–jeroen

Posted in Development, Hardware Development, Raspberry Pi | Leave a Comment »

Awesome – boldport: Beatiful functional circuits.

Posted by jpluimers on 2014/04/17

Thanks Stefaan Lesage for pointing me to boldport: Beatiful functional circuits.

Just look and be amazed at how awesome electronic circuits can be.

–jeroen

Posted in Development, Hardware Development | Leave a Comment »

USB Typewriter — Classic Typewriters for the Digital Age (for mechanical typewriters, not electrical ones)

Posted by jpluimers on 2014/03/19

Nicely done: the USB Typewriter — Classic Typewriters for the Digital Age, as they can do almost all keys a PC keyboard can do see the USB Typewriter — FAQ using a mechanical (not electrical!) typewriter.

Basically the opposite of  the IBM Selectric Computer Terminal, the Daisy wheel printing, the IBM 1050 system, and the IBM 2741 Console.

Note the kits (there are both soldering and non-soldering versions) are mostly aimed at models that once were popular in the USA, so for manufacturers like Adler there are no guidelines (but the existing guidelines for soldering and for non-soldering probably work fine).

–jeroen

Posted in Development, Hardware Development, Hardware Interfacing, Keyboards and Keyboard Shortcuts, LifeHacker, Power User, USB | Tagged: | 2 Comments »

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