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       <dc:date>2026-05-01T14:32:02+00:00</dc:date>
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        <dc:date>2022-11-13T13:11:28+00:00</dc:date>
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        <title>bird_feeder</title>
        <link>https://wiki.johnharrison.cc/doku.php?id=projects:bird_feeder&amp;rev=1668345088&amp;do=diff</link>
        <description>Requirements

	*  waterproof is better
	*  smaller is better
	*  stream to disk in realtime
	*  ideally 4K 120fps
	*  give up resolution before fps

Equipment

Action Camera

Go Pro 10 and friends

	*  GoPro Bones isn&#039;t waterproof
	*  GoPro 8 and 9 would work but the price difference doesn&#039;t warrant</description>
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        <dc:date>2025-03-05T14:20:58+00:00</dc:date>
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        <title>commerce_st</title>
        <link>https://wiki.johnharrison.cc/doku.php?id=projects:commerce_st&amp;rev=1741184458&amp;do=diff</link>
        <description>Electric Chameleons

	*  This audio separator works really well separating environmental noise and ported over OK to a local Jetson machine
		*  licensed under MIT license</description>
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        <dc:date>2022-10-26T14:44:40+00:00</dc:date>
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        <title>instagram_crawler</title>
        <link>https://wiki.johnharrison.cc/doku.php?id=projects:instagram_crawler&amp;rev=1666795480&amp;do=diff</link>
        <description>Technical Overview

	*  multiple 7&quot; or 10&quot; displays and/or projectors
	*  each display/projector runs a slideshow of images/videos found on instagram with its own unique hashtag
	*  1 audio speaker associated with each display
	*  each audio speaker plays audio from video when video is shown, plays chooses randomly from a set of audio files when showing images</description>
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        <dc:date>2025-01-28T02:02:09+00:00</dc:date>
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        <title>squirrel</title>
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        <description>AI squirrel deterrents

	*  &lt;https://www.youtube.com/watch?v=QPgqfnKG_T4&gt;
	*  Squirrel Soaker 9000
	*  Google search
	*  squirrel detection with rPI</description>
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        <title>stocks</title>
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        <description>Google Sheets

	*  death cross (moving averages)
	*  Alpaca API with Google Sheets (Alpaca API v2)

Misc

	*  NextTrade is open source software that can do algo trading and backtesting using Tradier

Socially Conscious Investing

	*  Spreadsheet: Fossil Free Funds, Deforestation Free Funds, Gender Equality Funds, Gun Free Funds, Prison Free Funds, Weapon Free Funds, and Tobacco Free Funds</description>
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        <dc:date>2022-07-16T16:41:22+00:00</dc:date>
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        <title>tv</title>
        <link>https://wiki.johnharrison.cc/doku.php?id=projects:tv&amp;rev=1657989682&amp;do=diff</link>
        <description>VGA -&gt; RF

It looks like the best/only/least expensive way is VGA cable -&gt; VGA/AV adapter -&gt; RCA cable -&gt; RF modulator -&gt; coax2antenna (if needed)

	*  purchased 17 of this least expensive VGA/AV adapter should be arriving by end of July
	*  put a $4 offer on 16 of cimple rf modulator on eBay</description>
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        <dc:date>2022-08-19T02:26:13+00:00</dc:date>
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        <title>vector_tv</title>
        <link>https://wiki.johnharrison.cc/doku.php?id=projects:vector_tv&amp;rev=1660875973&amp;do=diff</link>
        <description>Turning a CRT TV to vector

It&#039;s pretty easy to get lissajous curves but to go the next step has proven to be difficult. I was able to get good images on a &#039;scope using a computer sound card but they looked unrecognizable on the TV driving the coils with an amp. I tried doing an FFT on the output (2048 bins) and setting all the freqs for each bin up to 500+ Hz to be the same size on the X and Y and the result was not much better.</description>
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        <dc:date>2026-01-03T14:33:35+00:00</dc:date>
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        <title>virtual_window</title>
        <link>https://wiki.johnharrison.cc/doku.php?id=projects:virtual_window&amp;rev=1767450815&amp;do=diff</link>
        <description>Commercial Products

Atmoph

	*  There is this Product that already exists which starts at $600ish
		*  Their kickstarter
		*  a Sunlight Bar is an RGB LED strip that simulates natural sunlight


Winscape

	*  this looks to be Exactly the project, done in 2012!
		*  it&#039;s worth taking a deep dive into this project. He used 2D video shot from his camera and OpenGL to change the frustrum that&#039;s it!</description>
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        <dc:date>2023-01-21T15:26:52+00:00</dc:date>
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        <title>water_treatment_plant</title>
        <link>https://wiki.johnharrison.cc/doku.php?id=projects:water_treatment_plant&amp;rev=1674314812&amp;do=diff</link>
        <description>*  RFQ
	*  
	*  

Sphere projection

	*  
	*  ssi displays sphere and other unique projection
	*  Spheree: research project projecting into a sphere (hologram style)
		*  writeup of Spheree
		*  fast fusion projection system used by Spheree

	*  Wuxi e sphere: Chinese manufacturer</description>
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        <dc:date>2023-09-06T12:58:43+00:00</dc:date>
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        <title>whisperingwoodlands</title>
        <link>https://wiki.johnharrison.cc/doku.php?id=projects:whisperingwoodlands&amp;rev=1694005123&amp;do=diff</link>
        <description>Pd with Jack

	*  name Pd&#039;s jack connection “fred” and don&#039;t automatically connect it: pd -jack -jackname fred -nojackconnect</description>
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