The Wiert Corner – irregular stream of stuff

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

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Archive for August 1st, 2012

Dear fellow social media users, please post screen shots as PNG, not as JPEG image files

Posted by jpluimers on 2012/08/01

I still see many people post screen shots as JPEG images.

JPEG images introduce distortion, and usually are bigger than PNG images.

The PNG images are more crisp, and have more vibrant colors.

So dear fellow social media users: please post screen shots as PNG images.

Comparison: the JPEG on the left is 120 kilobyte, the PNG on the right only 60 kilobyte and looks much better.


Posted in G+: GooglePlus, LinkedIn, Power User, SocialMedia, Twitter, WordPress | 4 Comments »

on my .NET research list: Mini (Raspberry Pi) and Micro (Arduino)

Posted by jpluimers on 2012/08/01

Computing on not so common platforms it so much fun, especially when you can use familiar tools for it.

A couple of years ago, I did a fun project with an USB WebCam, a Pololu USB servo controller, two servo motors, a servo relay and a laser pointer. The device would point the laser pointer at the biggest moving object in the WebCam view, and flash the laser pointer at it.

All code was C# running on Windows.

Basically there are two classes on “small” devices that run .NET code (apart from smartphones and tablets):

  • Raspberry Pi:
    Mini devices with more than a couple of megabytes memory running a kind of regular .NET Framework.
  • Arduino:
    Micro devices with maximum of a couple of dozen kilobytes memory (a megabyte if you are really lucky) running the .NET Micro Framework

This might be a chance to lift it to a new level and embed everything in one device (:

The cool thing about the .NET Micro Framework is that you can do real time stuff.



Posted in .NET, Arduino, Development, Hardware Development, Raspberry Pi, Software Development | 2 Comments »

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