Shopping list for my micro FPV quad

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Lots of people have asked. What is the spec for the tiny 25 gram quad you used in your demo at DARC? And in this flight at the Nordic Media Days?

Here it is:

Quad: Blade Nano QX – BNF Version (Horizon, A-main)
You don’t want the RTF version. You really want to control this with a proper radio. So buy a suitable DSM2-module for your favourite radio and use that. My favs are my second hand Futaba 9C and my FrSky Taranis.

DSM-modules:
JR / Spectrum, works out of the box.
Futaba, needs USB-stick to change the channel order if you want to control the Blade with it.

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FPV:

Video Tx
Camera
Wide angle lens
Voltage step up and filter

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Then you connect power from the main battery to the step up adapter and 5V out of the step up to the video Tx and the camera. The last cable is video from the camera to the Tx. And off you go.

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If you don’t have a FPV base station you need at least a video Rx and some goggles.

Vaaaat? Tx? Rx? Soldering? If in doubt, start with this one. Not the same video range, not the wide angle lens, but plug and play for noobs.

Shopping list for my micro FPV quad

Deskrama – more cool stuff from Siggraph

Deskrama is a low-cost interactive space browser for three dimensional architectural designs. You move the screen on top of a drawing and it shows the 3D rendered picture of the building.

No point in trying to explain this here. Just click play and the video will show you how it works. Credits to Mr. Takehiko Nagakura.

http://flash.revver.com/player/1.0/player.swf

Link to video on Revver.

Deskrama – more cool stuff from Siggraph

Morphovision – you don’t believe your eyes

More goodies from Siggraph 2006. Morphovision is a project by Toshio Iwai. The combination of a spinning model of a house and some special lights give an illusion that is a strange experience. Something that looks like a true 3D projected image in front of your eyes. And, well – it is. Because the spinning model is a true model. A house made of wood and plastic. Problem is that the light fools your eyes into seeing strange things happening to the house… You have to see it yourself with your own eyes to really get the strange image.

However, for the people that wasn’t able to visit Siggraph this year I have made this little video to give an impression.

http://flash.revver.com/player/1.0/player.swf

Link to video

Morphovision – you don’t believe your eyes

Submerging Technologies

 

More geekumentaries from Siggraph 2006. Three interactive water displays: a musical harp with water “strings”, a liquid touchscreen and a tantalizing fountain that withdraws when a hand comes near. You find some more details from the official Siggraph 2006 site here.

Credits to Paul Dietz, Jefferson Y. Han, John Barnwell, Jonathan Westhues and William Yerazunis.

http://video.google.com/googleplayer.swf?docId=2310889848710041872&hl=en

Link to video on Google.

Submerging Technologies

Virtual Drums

http://video.google.com/googleplayer.swf?docId=1305663321821160476&hl=en
Link to video

All the way trough Siggraph this year I have tried to keep a close eye on the companies and brains behind the stuff that I have seen. To be able to provide my readers, the people listening to my presentations and myself with links and relevant sources of more information.

Virtual Drums
But some images and video clips managed to get into my camera without any other info. This is one of them. I wanted to share it because this is the solution for the parents that refuse to give their son a set of drums because of all the noise.

These virtual drums, a pair of high quality headphones and you’re all set…

Virtual Drums

Cool easter egg in an audio CD

Waveform displaying an image from audio

Apparently it is old news and was hot in the late nineties. I haven’t seen it before, and having worked as a sound designer I find this fascinating.

Aphex Twin has hidden an image of himself in the audio waveform of track 2 on Windowlicker. You need some software to find it and display it.

That’s what I call a cool easter egg on an audio CD. You know, like the easter eggs found in software, on DVDs and in movies. If you want to try this on your own productions here is a windows software that can help you out. Or you can use the Mac software that Apex Twin used to create the image above.

I haven’t found any cool examples of people doing the opposite, hiding audio in an image, but if you want to start implementing all kinds of data into other files you could try one of the following: Hide and Encrypt or Hider 1.1 (Both of them for Windows)

(Via Between Thought and Expression)

Cool easter egg in an audio CD

Screen technologies. LCD or Plasma?

People keeps asking me what I would recommend for a home theatre PC (HTPC). LCD or Plasma? In general I would recommend a good LCD. I know that the problems with burn in have been close to eliminated on the best plasma screens. Still, I find the crisp and clean LCD picture with absolutely no burn in problem preferable. A quick roundup:

CRT

Cathode Ray Tube (CRT)
First of all, it is perfectly OK to use your old tube. A standard cathode ray tube (CRT) connected to a PC through S-Video or even composite video should work fine if you adjust your screen card and use a proper media center software. The whole point of these softwares is to give you a front end from your computer that looks good even on low resolution television screens.

A quick trouble shooting tip: if you get a black and white signal from your PC when connecting through S-Video you probably have to select the correct output (S-Video ro Y/C) in your screen settings. If you get black and white when connecting through composite you probably have to take a look at the video format settings. Choosing NTSC when you have a PAL television could give you a black and white picture.

LCD

Liquid Chrystal Display (LCD)
LCD has been used for computer screens for some time. For the last couple of years they have been able to produce them big enough for use as television sets. Only half a year ago it was a problem that the contrast ratio (the difference between black and white) was too low. Resulting in loss of detail in dark and bright scenes. Now, that is about to end. Some of the vendors has introduced LCDs with contrast ratios of 3000:1 and 5000:1. Earlier that was only possible for Plasma displays. Another problem was response time. Bad response times could result in problems with fast moving video. Now, most LCD screens have a response time of 8 milliseconds or better. That should be enough for most people watching video or playing games on their screen.

Plasma

Plasma
Plasma screens traditionally gives better contrast ratio, a more correct black level and in general a slightly more soft picture. Half a year ago a good plasma would without doubt outperform a good LCD in quality for watching movies. Right now that have changed because of better LCD panels. In general you have to pay more for a proper high resolution plasma compared to a high resolution LCD (a resolution of 1280 x 720 or more).

And for the people that want more than a quick round up:
Wikipedia: CRT, LCD, Plasma
Comparison: Plasma vs. LCD TVs

And yes, the pictures in this post are all super close ups of the described technologies. With compliments to my new Canon S2 IS!

Screen technologies. LCD or Plasma?

The web page that eventually will show every picture possible

Everything possible

In May 2005 I posted an article that described an insane, yet slightly interesting supposition: Everything you would ever want to see

To put it short:
Make a computer program that renders all pictures possible within a given limitation. Store them on a hard drive and you would have a repository of all footage necessary to make any movie or TV show that will ever be made.

The article is one of my most popular so far. If you look through the comments you will find a lot of suggestions and attempts on making such a program.

Now, half a year later I have recieved the best one so far. Paul has made a page with a 64 x 64 greyscale frame. It is possible to create 2^1048576 pictures in that frame.

The frame will start with a black pixel up in the left corner and “count” up to the last picture as people visit the page. At some point something interesting will show up. A picture of the American president somewhere you have never seen him before. A picture of you somewhere you have never seen yourself before. Well, in a couple of million years everything possible will have been displayed at this page…

The web page that eventually will show every picture possible