<?xml version="1.0" encoding="utf-8" standalone="yes"?><rss version="2.0" xmlns:atom="http://www.w3.org/2005/Atom"><channel><title>Thrifting on Sarah's Microblog</title><link>http://salr.cc/tags/thrifting/</link><description>Recent content in Thrifting on Sarah's Microblog</description><generator>Hugo</generator><language>en-us</language><lastBuildDate>Mon, 17 Aug 2026 23:22:47 +0200</lastBuildDate><atom:link href="http://salr.cc/tags/thrifting/index.xml" rel="self" type="application/rss+xml"/><item><title>Ikea Frekvens LED matrix modding</title><link>http://salr.cc/tmp/post/tech/post/1787001767/</link><pubDate>Mon, 17 Aug 2026 23:22:47 +0200</pubDate><guid>http://salr.cc/tmp/post/tech/post/1787001767/</guid><description>&lt;p&gt;I found a couple of ikea frekvens LED matrix cubes from that teenage engineering &lt;a href="https://teenage.engineering/designs/frekvens"&gt;collab&lt;/a&gt; in a thrift store in Vienna. They were cheap and I&amp;rsquo;d heard about people modding them.
Plugged in, they provide possibly the most dissapointing lightshow I&amp;rsquo;ve seen:&lt;/p&gt;



 &lt;video autoplay muted loop src="http://salr.cc/tmp/post/tech/post/1787001767/PXL_20260421_204811382.mp4"&gt;
 &lt;p&gt;
 
 The LED matrix cubes 'dancing' to sounds.

 &lt;/p&gt;
 &lt;a href="http://salr.cc/tmp/post/tech/post/1787001767/PXL_20260421_204811382.mp4" download="/tmp/post/tech/post/1787001767/PXL_20260421_204811382.mp4"&gt;Download&lt;/a&gt;
 &lt;/video&gt;

&lt;p&gt;Whatever electronics they&amp;rsquo;ve got in there, it&amp;rsquo;s doing a very simple job: Show a static frame of a pre-baked five frame looping animation. Monitor a microphone and progress the animation each time a loud sound occurs. Check two buttons on the back to turn the LEDs on or off, and switch between a few different animation sets.&lt;br&gt;
That&amp;rsquo;s it. Nothing dynamic, nothing exciting. Why not make it just a bit more exciting?&lt;/p&gt;</description></item><item><title/><link>http://salr.cc/tmp/post/tech/post/1786307567/</link><pubDate>Sun, 09 Aug 2026 22:32:47 +0200</pubDate><guid>http://salr.cc/tmp/post/tech/post/1786307567/</guid><description>&lt;span class="gallery"&gt;
 &lt;figure&gt;
	&lt;a href="http://salr.cc/tmp/post/tech/post/1786307567/PXL_20260809_192134200_hu_52d0971f5da1a7a4.jpg" target="_blank"&gt;
 &lt;img src="http://salr.cc/tmp/post/tech/post/1786307567/PXL_20260809_192134200_hu_8c305aa8e547386e.webp" alt="A fancy LED driver"&gt;
	&lt;/a&gt;
&lt;/figure&gt;




 
 
 
 
 
 
 


&lt;figure&gt;
	&lt;a href="http://salr.cc/tmp/post/tech/post/1786307567/PXL_20260809_192403192_hu_6248131903db3dec.jpg" target="_blank"&gt;
 &lt;img src="http://salr.cc/tmp/post/tech/post/1786307567/PXL_20260809_192403192_hu_e1ee59f0d13bcdcf.webp" alt="60x60 Light panel on"&gt;
	&lt;/a&gt;
&lt;/figure&gt;&lt;/span&gt;
&lt;p&gt;Found a 60x60 LED panel for 20dkk in the thrift store last week. Found an LED driver in the trash a couple days later. Just had to adjust the output power and change the power connector. Who knows, &lt;a href="https://en.wikipedia.org/wiki/Digital_Addressable_Lighting_Interface"&gt;dali&lt;/a&gt; control might be broken, but I&amp;rsquo;m not living in an office. Think it&amp;rsquo;s gonna be my new work desk light.&lt;/p&gt;</description></item></channel></rss>