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#pixelblaze

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Kernel Bob<p><span class="h-card" translate="no"><a href="https://leds.social/@jasoncoon" class="u-url mention" rel="nofollow noopener" target="_blank">@<span>jasoncoon</span></a></span> recently posted a cube shader that runs colorwaves around the cube's perimeter. I tried expanding that to three nesting cubes.</p><p>This color scheme is a throwaway, but I tried a spatial dither to smooth the hue changes at low brightness. There are interesting possibilities to explore there.</p><p>Source: <a href="https://gist.github.com/kbob/c93e9fcfda836462d2e6f01bcffd294b" rel="nofollow noopener" translate="no" target="_blank"><span class="invisible">https://</span><span class="ellipsis">gist.github.com/kbob/c93e9fcfd</span><span class="invisible">a836462d2e6f01bcffd294b</span></a><br>Jason's post: <a href="https://leds.social/@jasoncoon/114973474070298975" rel="nofollow noopener" translate="no" target="_blank"><span class="invisible">https://</span><span class="ellipsis">leds.social/@jasoncoon/1149734</span><span class="invisible">74070298975</span></a></p><p><a href="https://chaos.social/tags/LED" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>LED</span></a> <a href="https://chaos.social/tags/PixelBlaze" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>PixelBlaze</span></a> <a href="https://chaos.social/tags/EvilGeniusLabs" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>EvilGeniusLabs</span></a> <a href="https://chaos.social/tags/Shader" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>Shader</span></a></p>
Jason Coon<p>Curious what it takes to write 3D patterns for <a href="https://leds.social/tags/Pixelblaze" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>Pixelblaze</span></a> by <span class="h-card" translate="no"><a href="https://leds.social/@wizard" class="u-url mention" rel="nofollow noopener" target="_blank">@<span>wizard</span></a></span>?<br>I've written up a short series of tutorials: <a href="https://www.evilgeniuslabs.org/tutorials/pixelblaze3d/part1" rel="nofollow noopener" translate="no" target="_blank"><span class="invisible">https://www.</span><span class="ellipsis">evilgeniuslabs.org/tutorials/p</span><span class="invisible">ixelblaze3d/part1</span></a><br>Among other examples, I show how to display rainbow-colored 3D Perlin noise on a three dimensional <a href="https://leds.social/tags/RGB" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>RGB</span></a> <a href="https://leds.social/tags/LED" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>LED</span></a> cube.<br>Get your own cube: <a href="https://lectronz.com/products/led-cube-8x8x8" rel="nofollow noopener" translate="no" target="_blank"><span class="invisible">https://</span><span class="ellipsis">lectronz.com/products/led-cube</span><span class="invisible">-8x8x8</span></a></p>
Kernel Bob<p><span class="h-card" translate="no"><a href="https://leds.social/@jasoncoon" class="u-url mention" rel="nofollow noopener" target="_blank">@<span>jasoncoon</span></a></span> I have sad news. My LED cube's power supply died. It supplies 2-3V now, and the ESP32 reboots constantly.</p><p>I have great news! I hooked it up to a bench supply and it runs fine. With all 512 LEDs at 100% white, I measured 13.08A. So I'm ordering a new 15A power brick from the piranha retailer now.</p><p><a href="https://chaos.social/tags/EvilGeniusLabs" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>EvilGeniusLabs</span></a> <a href="https://chaos.social/tags/PixelBlaze" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>PixelBlaze</span></a> <a href="https://chaos.social/tags/LED" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>LED</span></a></p>
Jason Coon<p>Rotating sphere pattern for the 8x8x8 LED Cube, creating using the built-in <a href="https://leds.social/tags/Pixelblaze" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>Pixelblaze</span></a> by <span class="h-card" translate="no"><a href="https://leds.social/@wizard" class="u-url mention" rel="nofollow noopener" target="_blank">@<span>wizard</span></a></span>.<br>Get your own cube: <a href="https://lectronz.com/products/led-cube-8x8x8" rel="nofollow noopener" translate="no" target="_blank"><span class="invisible">https://</span><span class="ellipsis">lectronz.com/products/led-cube</span><span class="invisible">-8x8x8</span></a><br>Pattern code: <a href="https://gist.github.com/jasoncoon/d1a0e3f4015f73e602b32a79681039aa" rel="nofollow noopener" translate="no" target="_blank"><span class="invisible">https://</span><span class="ellipsis">gist.github.com/jasoncoon/d1a0</span><span class="invisible">e3f4015f73e602b32a79681039aa</span></a></p>
Jason Coon<p>Another new pattern for the 8x8x8 LED Cube, creating using the built-in <a href="https://leds.social/tags/Pixelblaze" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>Pixelblaze</span></a> by <span class="h-card" translate="no"><a href="https://leds.social/@wizard" class="u-url mention" rel="nofollow noopener" target="_blank">@<span>wizard</span></a></span>.<br>Get your own cube: <a href="https://lectronz.com/products/led-cube-8x8x8" rel="nofollow noopener" translate="no" target="_blank"><span class="invisible">https://</span><span class="ellipsis">lectronz.com/products/led-cube</span><span class="invisible">-8x8x8</span></a><br>Get the pattern: <a href="https://gist.github.com/jasoncoon/545f11fc4431f5e3b772fbee8f702935" rel="nofollow noopener" translate="no" target="_blank"><span class="invisible">https://</span><span class="ellipsis">gist.github.com/jasoncoon/545f</span><span class="invisible">11fc4431f5e3b772fbee8f702935</span></a></p>
Jason Coon<p>Playing with the 8x8x8 LED Cube, creating new patterns using the built-in <a href="https://leds.social/tags/Pixelblaze" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>Pixelblaze</span></a> by <span class="h-card" translate="no"><a href="https://leds.social/@wizard" class="u-url mention" rel="nofollow noopener" target="_blank">@<span>wizard</span></a></span>.<br>Get your own cube: <a href="https://lectronz.com/products/led-cube-8x8x8" rel="nofollow noopener" translate="no" target="_blank"><span class="invisible">https://</span><span class="ellipsis">lectronz.com/products/led-cube</span><span class="invisible">-8x8x8</span></a></p>
Ben Delarre<p>You know it's time for <a href="https://mastodon.social/tags/burningman" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>burningman</span></a> when your mailbox is full of LEDs!</p><p>Thanks for the fast shipping <span class="h-card" translate="no"><a href="https://leds.social/@benhencke" class="u-url mention" rel="nofollow noopener" target="_blank">@<span>benhencke</span></a></span> <a href="https://mastodon.social/tags/pixelblaze" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>pixelblaze</span></a></p>
GeekMomProjects<p>I'm belatedly getting around to showing off this **GORGEOUS** crochet hat the uber talented <span class="h-card" translate="no"><a href="https://mstdn.social/@alpenglow" class="u-url mention" rel="nofollow noopener" target="_blank">@<span>alpenglow</span></a></span> made for me. She integrated a pebble light string and <a href="https://mastodon.social/tags/pixelblaze" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>pixelblaze</span></a> controller. It's all powered by a flat top 18650 with a clever charge/discharge circuit designed by <span class="h-card" translate="no"><a href="https://mastodon.social/@clomads" class="u-url mention" rel="nofollow noopener" target="_blank">@<span>clomads</span></a></span> that snaps just over the positive terminal and minimizes the power circuitry. I'll be seeking out cold places just to wear it!</p>
Jason Coon<p>Finally revisiting "Fibonacci256 Expanding"! I found a few working LED PCBs in my stash, finished the <a href="https://leds.social/tags/lasercut" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>lasercut</span></a> acrylic enclosure, got it working with <a href="https://leds.social/tags/PixelBlaze" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>PixelBlaze</span></a> by <span class="h-card" translate="no"><a href="https://leds.social/@wizard" class="u-url mention" rel="nofollow noopener" target="_blank">@<span>wizard</span></a></span>, submitted for approval on Lectronz, and up for sale soon!<br><a href="https://www.evilgeniuslabs.org/fibonacci256-expanding-pixelblaze" rel="nofollow noopener" translate="no" target="_blank"><span class="invisible">https://www.</span><span class="ellipsis">evilgeniuslabs.org/fibonacci25</span><span class="invisible">6-expanding-pixelblaze</span></a></p>
Jason Coon<p>I realize that I skipped a step. If, instead of pixels being only off or on, you use a wave function for brightness (value) where the period of the wave is each pixels' radius, you get a much smoother pattern. The <a href="https://leds.social/tags/Pixelblaze" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>Pixelblaze</span></a> code is short and relatively simple: <a href="https://gist.github.com/jasoncoon/dbda5f390872cec21ec2ba875ff5b14f" rel="nofollow noopener" translate="no" target="_blank"><span class="invisible">https://</span><span class="ellipsis">gist.github.com/jasoncoon/dbda</span><span class="invisible">5f390872cec21ec2ba875ff5b14f</span></a><br>Get your own Fibonacci256 here: <a href="https://lectronz.com/products/fibonacci256-hdr-166mm" rel="nofollow noopener" translate="no" target="_blank"><span class="invisible">https://</span><span class="ellipsis">lectronz.com/products/fibonacc</span><span class="invisible">i256-hdr-166mm</span></a></p>
Jason Coon<p>Now if you take all of that, use a pattern (ColorWaves) by an LED guru like Mark Kriegsman, port it to <a href="https://leds.social/tags/Pixelblaze" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>Pixelblaze</span></a> with the help of <span class="h-card" translate="no"><a href="https://leds.social/@wizard" class="u-url mention" rel="nofollow noopener" target="_blank">@<span>wizard</span></a></span>, use long slow smooth wave functions for hue, saturation and value, and use color palettes instead of just always shouting rainbows, you get a pattern that slowly shifts and ~never repeats.<br><a href="https://lectronz.com/products/fibonacci256-hdr-166mm" rel="nofollow noopener" translate="no" target="_blank"><span class="invisible">https://</span><span class="ellipsis">lectronz.com/products/fibonacc</span><span class="invisible">i256-hdr-166mm</span></a></p>
Jason Coon<p>I created this interactive demonstration pattern using <a href="https://leds.social/tags/Pixelblaze" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>Pixelblaze</span></a> by <span class="h-card" translate="no"><a href="https://leds.social/@wizard" class="u-url mention" rel="nofollow noopener" target="_blank">@<span>wizard</span></a></span>, here's the code: <a href="https://gist.github.com/jasoncoon/6bec69d43f3183ca28fe68376d9396d1" rel="nofollow noopener" translate="no" target="_blank"><span class="invisible">https://</span><span class="ellipsis">gist.github.com/jasoncoon/6bec</span><span class="invisible">69d43f3183ca28fe68376d9396d1</span></a></p>
Jason Coon<p>Fibonacci1024 driven with the brilliant <a href="https://leds.social/tags/PixelBlaze" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>PixelBlaze</span></a> by <span class="h-card" translate="no"><a href="https://leds.social/@wizard" class="u-url mention" rel="nofollow noopener" target="_blank">@<span>wizard</span></a></span>.<br>My hand holding a one inch (25.4mm) Fibonacci128 for scale.</p>
Kernel Bob<p><span class="h-card" translate="no"><a href="https://leds.social/@jasoncoon" class="u-url mention" rel="nofollow noopener" target="_blank">@<span>jasoncoon</span></a></span> I'm finally getting into writing shaders for my PixelBlaze/Evil Genius Labs LED cube. I call this one Bubble Phi. It uses the R₂ low discrepancy sequence to pick the colors, thanks to <span class="h-card" translate="no"><a href="https://mastodon.gamedev.place/@mbr" class="u-url mention" rel="nofollow noopener" target="_blank">@<span>mbr</span></a></span> for showing it to me. (I've used R₁ color sequences in other projects.)</p><p><a href="https://chaos.social/tags/EvilGeniusLabs" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>EvilGeniusLabs</span></a> <a href="https://chaos.social/tags/PixelBlaze" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>PixelBlaze</span></a> <a href="https://chaos.social/tags/LED" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>LED</span></a></p>
gallaugher<p>Am thinking for starters I’ll just laser cut a wooden circle the circumference of the <a href="https://mastodon.world/tags/LED" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>LED</span></a> strip, wrap it around the end, and try some sort of paper cover or other slightly rigid diffuser a bit larger than the circle. This is just under paper at home office with <a href="https://mastodon.world/tags/pixelblaze" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>pixelblaze</span></a> shuffle. We’re gonna have fun with this! LMK your suggestions for lights to buy and projects to try!</p>
GeekMomProjects<p>Just finished sewing a new sling bag with a 32x18 LED matrix inside the pocket flap. The pocket flap snaps off so the matrix can be used in other designs. The <a href="https://mastodon.social/tags/Pixelblaze" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>Pixelblaze</span></a> controller and battery fit nicely inside the front pocket</p>
Jason Coon<p>Finished tweaking the map for this cluster of seven x 1" Fibonacci128. Driving it with a <a href="https://leds.social/tags/PixelBlaze" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>PixelBlaze</span></a> by <span class="h-card" translate="no"><a href="https://leds.social/@wizard" class="u-url mention" rel="nofollow noopener" target="_blank">@<span>wizard</span></a></span><br>Get your own 1" Fibonacci128: <a href="https://lectronz.com/products/inch-fibonacci128" rel="nofollow noopener" translate="no" target="_blank"><span class="invisible">https://</span><span class="ellipsis">lectronz.com/products/inch-fib</span><span class="invisible">onacci128</span></a></p>
GeekMomProjects<p>The diffusers on the new LED polyhedron (dihedral hexacontahedron, right) looked so much better than the first build that I had to print new ones for the truncated icosahedron (left). I also synced up the patterns on both builds (with <a href="https://mastodon.social/tags/pixelblaze" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>pixelblaze</span></a>) and will be sitting here staring at them for the rest of the day.</p>
ewhac<p>I just got one of these gadgets today, and the more I think about it, the more impressed I am.</p><p>Not only does it make LED strands light up in pretty colors, not only can it accept nearly arbitrary patterns, but it also hosts a *Web UI,* on which you can edit the LED patterns *live!*</p><p><a href="https://mastodon.social/tags/Pixelblaze" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>Pixelblaze</span></a></p><p><a href="https://electromage.com/pixelblaze" rel="nofollow noopener" translate="no" target="_blank"><span class="invisible">https://</span><span class="">electromage.com/pixelblaze</span><span class="invisible"></span></a></p>
GeekMomProjects<p>The LED deltoidal hexacontahedron is complete! 60 identical PCB sides covered with 3D printed diffusers. Two <a href="https://mastodon.social/tags/Pixelblaze" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>Pixelblaze</span></a> controllers work in sync to provide a fast frame rate for patterns on the 1200 LEDs.</p>
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