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Some Fourier arts from WolframAlpha.
In this post on VK i explain how i parsed these formulas.
#oscilloscope#oscilloscope drawing#ft232#r2r#pm3234#s1-93#fourier#cartoon#anime#princess ariel#sonic the hedgehog#donald duck#winnie the pooh#snowflakes#batman#konata izumi#applejack#aang#skull
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Some basic lissajous :^)
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Source image. It says "i live in /\/\oscow".
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#oscilloscope#oscilloscope drawing#vector#ft232#r2r#anime#azumanga daioh#azumanga daiou#osaka azumanga#kasuga ayumu#ayumu kasuga
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Trying my clip-on mobile wide angle lens
Fourier skull on wolfram alpha - link (not mine)
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I wrote a crude parser for AsciiMath formulas to be able to get some Fourier series art from wolframalpha and draw them on oscillosope.
Here is the Konata Izumi-like curve :3 (not mine)
#oscilloscope#oscilloscope drawing#vector#ft232#r2r#pm3234#fourier transform#konata izumi#lucky star#anime
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DIY FT232 3 Channel R2R DAC
In previous post i mentioned some updates in hardware.
Here i show schematic and explain how it works:


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I recently updated hardware side of my DIY DAC, now it can output up to 6.66 million dots per second instead of about 1.5 million on previous version. Testing by drawing some memes using raster scan skipping black pixels passed successfully.
#oscilloscope#oscilloscope drawing#raster#low res#ft2232#r2r#soyjak#lain#serial experiments lain#anime#memes#russian memes
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Just casting UV light on CRTs and stuff.
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Trying to achieve shades of “gray” in storage mode. Some spots on the storage grid in CRT is very worn out so does not hold charge long enough.
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Playing with my Philips PM3234, fully analog dual beam oscilloscope with storage capabilities
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I bought x2 lens for my phone camera so the control knobs on oscilloscope look less stretched out on the photos. Tested it during shooting the beautiful Gadget Hackwrench. See also my DSLR optics test here.
(btw in CIS and ex-USSR we call her “Гаечка”, the soft form of ”Nut”. By the word Nut here i mean little hexagonal things screwed by a wrench)
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I shot this about a year ago for some purpose. And never used it lol.
#oscilloscope#oscilloscope drawing#raster#VGA#scan and blanking combined#internal sweep#this is sparta#king leonidas#300 rise of an empire#movie
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Finaly figured out how to use digital filters and 4 channel audio in NAudio library. Drew something using two line outs on my soundcard.
To get best picture i used two filters - low shelf to boost low frequencies because they are cut by coupling capacitors at the output, and low pass filter based on impulse response and convolution to eliminate the Gibbs effect which can be seen as "hairy" ends of the lines. Last two photos demonstrating resulting picture with and without filters respectively.
4 channels is used because i also want to use beam brightness modulation (Z channel of oscilloscope)
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