Blinky - Trammell Hudson's Projects

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class="md-nav__link"> Fiber Optic LED fascinators </a> </li> <li class="md-nav__item"> <a href="#firefly-race-2013" class="md-nav__link"> Firefly Race 2013 </a> </li> </ul> </nav> </li> <li class="md-nav__item"> <a href="#see-also" class="md-nav__link"> See also </a> </li> <li class="md-nav__item"> <a href="#list-of-pages" class="md-nav__link"> List of pages </a> </li> </ul> </nav> </div> </div> </div> <div class="md-content" data-md-component="content"> <article class="md-content__inner md-typeset"> <h1>Blinky</h1> <h2 id="matrix">Matrix</h2> <h3 id="cubescroller">Cubescroller</h3> <table class="gallery"> <tbody markdown='1'> <tr> <td class="gallery-image col-1" width="50.0%"><a href="https://www.flickr.com/photos/osr/12689589335/lightbox"><img src="https://live.staticflickr.com/3736/12689589335_91f47116d7_b.jpg" srcset="https://live.staticflickr.com/3736/12689589335_91f47116d7_b.jpg 1024w, https://live.staticflickr.com/3736/12689589335_91f47116d7.jpg 400w" /></a></td> <td class="gallery-image col-2" width="50.0%"><a href="https://www.flickr.com/photos/osr/12688272584/lightbox"><img src="https://live.staticflickr.com/7401/12688272584_e83725ba6b_b.jpg" srcset="https://live.staticflickr.com/7401/12688272584_e83725ba6b_b.jpg 1024w, https://live.staticflickr.com/7401/12688272584_e83725ba6b.jpg 400w" /></a></td> </tr> <tr markdown='1' class='gallery-caption-row'> <td class="gallery-caption col-1" width="50.0%"></td> <td class="gallery-caption col-2" width="50.0%"></td> <p></tr> </tbody></p> </table> <p>Cubescroller is a six-sided hanging cubical art piece. It uses the <a href="/LEDscape">LEDscape</a> code and maps it onto a cube of six 32x32 RGB matrices held together with 3D printed brackets and with a BeagleBone Black / <a href="/Octoscroller">Octoscroller</a> cape inside. Still a work in progress. <a href="/Cubescroller"><strong>Read on for more details...</strong></a></p> <h3 id="disorient-pyramid">Disorient Pyramid</h3> <table class="gallery"> <tbody markdown='1'> <tr> <td class="gallery-image col-1" width="50.0%"><a href="https://www.flickr.com/photos/osr/9669257022/lightbox"><img src="https://live.staticflickr.com/3768/9669257022_475d6b37bf_b.jpg" srcset="https://live.staticflickr.com/3768/9669257022_475d6b37bf_b.jpg 1024w, https://live.staticflickr.com/3768/9669257022_475d6b37bf.jpg 400w" /></a></td> <td class="gallery-image col-2" width="50.0%"><a href="https://www.flickr.com/photos/69505536@N03/9677915389/lightbox"><img src="https://live.staticflickr.com/7453/9677915389_3c5c38c3c4_b.jpg" srcset="https://live.staticflickr.com/7453/9677915389_3c5c38c3c4_b.jpg 1024w, https://live.staticflickr.com/7453/9677915389_3c5c38c3c4.jpg 400w" /></a></td> </tr> <tr markdown='1' class='gallery-caption-row'> <td class="gallery-caption col-1" width="50.0%"></td> <td class="gallery-caption col-2" width="50.0%"></td> <p></tr> </tbody></p> </table> <p>The <a href="http://disorient.info">Disorient Camp</a> at Burning Man built a 7m tall pyramid with over half a kilometer of LED strips. I wrote the <a href="https://github.com/osresearch/LEDscape">low level firmware</a> that received the UDP packets and sent them to the LED strips, as well as helped built the pyramid on site in the Black Rock desert.<a href="/Disorient_Pyramid"><strong>Read on for more details...</strong></a></p>  <h3 id="octoscroller">Octoscroller</h3> <table class="gallery"> <tbody markdown='1'> <tr> <td class="gallery-image col-1" width="50.0%"><a href="https://www.flickr.com/photos/osr/9702197818/lightbox"><img src="https://live.staticflickr.com/3760/9702197818_9e7ac1aa82_b.jpg" srcset="https://live.staticflickr.com/3760/9702197818_9e7ac1aa82_b.jpg 1024w, https://live.staticflickr.com/3760/9702197818_9e7ac1aa82.jpg 400w" /></a></td> <td class="gallery-image col-2" width="50.0%"><a href="https://www.flickr.com/photos/osr/9698958535/lightbox"><img src="https://live.staticflickr.com/7296/9698958535_1de0e50c90_b.jpg" srcset="https://live.staticflickr.com/7296/9698958535_1de0e50c90_b.jpg 1024w, https://live.staticflickr.com/7296/9698958535_1de0e50c90.jpg 400w" /></a></td> </tr> <tr markdown='1' class='gallery-caption-row'> <td class="gallery-caption col-1" width="50.0%"></td> <td class="gallery-caption col-2" width="50.0%"></td> <p></tr> </tbody></p> </table> <p><a href="/Hexascroller_LEDs">Hexscroller</a> is pretty neat, but I felt it was two sides and two colors short of awesome. So I built Octoscroller from 16x32 RGB LED panels, a BeagleBone Black with custom PRU firmware and some 3D printed angle brackets. The <a href="/LEDscape">LEDscape</a> firmware is under active development. <a href="/Octoscroller"><strong>Read on for more details on how it works...</strong></a></p> <h2 id="strips">Strips</h2> <h3 id="domestar">Domestar</h3> <table class="gallery"> <tbody markdown='1'> <tr> <td class="gallery-image col-1" width="50.0%"><a href="https://www.flickr.com/photos/79050827@N04/7242382104/lightbox"><img src="https://live.staticflickr.com/7084/7242382104_2b2c581901_b.jpg" srcset="https://live.staticflickr.com/7084/7242382104_2b2c581901_b.jpg 1024w, https://live.staticflickr.com/7084/7242382104_2b2c581901.jpg 400w" /></a></td> <td class="gallery-image col-2" width="50.0%"><a href="https://www.flickr.com/photos/osr/6900506579/lightbox"><img src="https://live.staticflickr.com/7199/6900506579_3a4dec00c4_b.jpg" srcset="https://live.staticflickr.com/7199/6900506579_3a4dec00c4_b.jpg 1024w, https://live.staticflickr.com/7199/6900506579_3a4dec00c4.jpg 400w" /></a></td> </tr> <tr markdown='1' class='gallery-caption-row'> <td class="gallery-caption col-1" width="50.0%"></td> <td class="gallery-caption col-2" width="50.0%"></td> <p></tr> </tbody></p> </table> <p>A large group project at NYC Resistor was the Dome Star, an interactive LED geodesic dome that has been exhibited at Maker Faire, Burning Man, the Open Hardware Summit and the 2012 Interactive Show. I helped write the firmware that drives the SPI bus for the LED strips and participated in a few of the dome-raising parties.</p> <h3 id="hexascroller-leds">Hexascroller LEDs</h3> <table class="gallery"> <tbody markdown='1'> <tr> <td class="gallery-image col-1" width="50.0%"><a href="https://www.flickr.com/photos/osr/6403206183/lightbox"><img src="https://live.staticflickr.com/7011/6403206183_bc8b41c035_b.jpg" srcset="https://live.staticflickr.com/7011/6403206183_bc8b41c035_b.jpg 1024w, https://live.staticflickr.com/7011/6403206183_bc8b41c035.jpg 400w" /></a></td> <td class="gallery-image col-2" width="50.0%"><a href="https://www.flickr.com/photos/osr/6402364943/lightbox"><img src="https://live.staticflickr.com/7156/6402364943_ca8a3b4cc9_b.jpg" srcset="https://live.staticflickr.com/7156/6402364943_ca8a3b4cc9_b.jpg 1024w, https://live.staticflickr.com/7156/6402364943_ca8a3b4cc9.jpg 400w" /></a></td> </tr> <tr markdown='1' class='gallery-caption-row'> <td class="gallery-caption col-1" width="50.0%"></td> <td class="gallery-caption col-2" width="50.0%"></td> <p></tr> </tbody></p> </table> <p>At NYC Resistor we have an awesome red LED sign board named Hexascroller that listens for SMS and tweets. I added a multi-color LED strip along the ceiling to provide mood lighting and also allow Hexascroller to announce new messages in an eye catching way.</p> <h3 id="sunrise-alarm-clock">Sunrise alarm clock</h3> <table class="gallery"> <tbody markdown='1'> <tr> <td class="gallery-image col-1" width="50.0%"><a href="https://www.flickr.com/photos/osr/7994073314/lightbox"><img src="https://live.staticflickr.com/8438/7994073314_9bec7162bd_b.jpg" srcset="https://live.staticflickr.com/8438/7994073314_9bec7162bd_b.jpg 1024w, https://live.staticflickr.com/8438/7994073314_9bec7162bd.jpg 400w" /></a></td> <td class="gallery-image col-2" width="50.0%"><a href="https://www.flickr.com/photos/osr/7858113798/lightbox"><img src="https://live.staticflickr.com/8423/7858113798_922b146d6f_b.jpg" srcset="https://live.staticflickr.com/8423/7858113798_922b146d6f_b.jpg 1024w, https://live.staticflickr.com/8423/7858113798_922b146d6f.jpg 400w" /></a></td> </tr> <tr markdown='1' class='gallery-caption-row'> <td class="gallery-caption col-1" width="50.0%"></td> <td class="gallery-caption col-2" width="50.0%"></td> <p></tr> </tbody></p> </table> <p>I helped Holly build and write the firmware for a LED strip alarm clock based on the Adafruit monochron. This is one of our more practical projects -- it has worked reliably everyday to provide a gentle wakeup at 6am before the real alarm goes off. <a href="/Sunrise_alarm_clock"><strong>Read on for more details...</strong></a></p> <h2 id="wearables">Wearables</h2> <h3 id="charlieplexing">Charlieplexing</h3> <p><a href="https://www.flickr.com/photos/osr/15731593780/lightbox"><img src="https://live.staticflickr.com/8584/15731593780_25737ab668_b.jpg" srcset="https://live.staticflickr.com/8584/15731593780_25737ab668_b.jpg 1024w, https://live.staticflickr.com/8584/15731593780_25737ab668.jpg 400w" /></a> Want to drive more LEDs with fewer IO pins? Then you might be interested in the <a href="https://en.wikipedia.org/wiki/Charlieplexing">Charlieplexing</a> technique. My example sketch can drive six LEDs each with 8-bit PWM using the three IO pins on the GEMA, or 12 LEDS using 4 IO pins on a larger microcontroller. <a href="/Charlieplexing"><strong>Read on for more details...</strong></a></p> <h3 id="burning-man-backpack">Burning Man Backpack</h3> <p><a href="https://www.flickr.com/photos/osr/14872763905/lightbox"><img src="https://live.staticflickr.com/3835/14872763905_32ec18b43d_b.jpg" srcset="https://live.staticflickr.com/3835/14872763905_32ec18b43d_b.jpg 1024w, https://live.staticflickr.com/3835/14872763905_32ec18b43d.jpg 400w" /></a> I've added a few extra features to my cameback for Burning Man -- things like EL wire on the front, a <a href="http://www.adafruit.com/products/1586">24-pixel LED ring</a> on the back, a <a href="http://www.eham.net/reviews/detail/10349">2m/440 HT</a> with earpiece and PTT on the strap and replaced the logos with <a href="http://www.adafruit.com/category/70">badges</a>. <a href="https://github.com/osresearch/flora/blob/master/brakelight/brakelight.ino">Source code</a>.</p> <h3 id="fiber-optic-led-fascinators">Fiber Optic LED fascinators</h3> <p><a href="https://www.flickr.com/photos/osr/14528647593/lightbox"><img src="https://live.staticflickr.com/2931/14528647593_26d1dc7a2a_b.jpg" srcset="https://live.staticflickr.com/2931/14528647593_26d1dc7a2a_b.jpg 1024w, https://live.staticflickr.com/2931/14528647593_26d1dc7a2a.jpg 400w" /></a> Holly shows how to turn a bundle of fiber optics into a wearable LED fascinator. She is <a href="http://www.nycresistor.com/2014/06/19/june-29th-working-with-illuminated-wearable-materials/">teaching a class at NYCR</a> on wearable electronics, too!<em>'<a href="/Fiberoptics">Read on for instructions...</a></em></p> <h3 id="firefly-race-2013">Firefly Race 2013</h3> <p><a href="https://www.flickr.com/photos/osr/10107423155/lightbox"><img src="https://live.staticflickr.com/3724/10107423155_ff4bd9af74_b.jpg" srcset="https://live.staticflickr.com/3724/10107423155_ff4bd9af74_b.jpg 1024w, https://live.staticflickr.com/3724/10107423155_ff4bd9af74.jpg 400w" /></a></p> <p>I built a heart-beat LED blinkie and <a href="https://en.wikipedia.org/wiki/Glen_A._Larson">Larson scanner</a> with a Teensy, a <a href="http://www.adafruit.com/products/1463">Adafruit Neopixel ring</a> and a lightbar of WS2812b for the Firefly 5k through Prospect Park. Instead of soldering, I used a double wrap of the wire through the hole and a knot to hold it in place. This held up quite well to the vibration of jogging. <a href="https://bitbucket.org/hudson/jacket">Source code</a> is available if you want it.</p> <h2 id="see-also">See also</h2> <p>See also <a href="/Category:Blinky">Category:Blinky</a> for an overview of various blinking projects. <a href="/Category:Blinky"><span style='color:white; background-color:red'>Blinky</a></p> <hr> <h2 id="list-of-pages">List of pages</h2> <ul> <li><a href="/Backpack/">Backpack</a></li> <li><a href="/Category%3ALED/">Blinky</a></li> <li><a href="/Disorient_Pyramid/">Disorient Pyramid</a></li> <li><a href="/DMX/">DMX</a></li> <li><a href="/Domestar/">Domestar</a></li> <li><a href="/EL_wire_Nixie/">EL wire Nixie</a></li> <li><a href="/Firefly_Race/">Firefly Race</a></li> <li><a href="/Hexascroller_LEDs/">Hexascroller LEDs</a></li> <li><a href="/LED_ring_light/">LED ring light</a></li> <li><a href="/Mini_Pyramid/">Mini Pyramid</a></li> <li><a href="/October_First/">October First</a></li> <li><a href="/Octoscroller/">Octoscroller</a></li> <li><a href="/Orion/">Orion</a></li> <li><a href="/Pendant/">Pendant</a></li> <li><a href="/Sunrise_alarm_clock/">Sunrise alarm clock</a></li> <li><a href="/Supersized_Seven_Segment_clock/">Supersized Seven Segment clock</a></li> <li><a href="/USB_Nixie_tube_driver/">USB Nixie tube driver</a></li> </ul> <hr> <hr> <div class="md-source-file"> <small> Last update: <span class="git-revision-date-localized-plugin git-revision-date-localized-plugin-date">November 8, 2020</span> </small> </div> </article> </div> </div> </main> <footer class="md-footer"> <div class="md-footer-meta md-typeset"> <div class="md-footer-meta__inner md-grid"> <div class="md-copyright"> Made with <a href="https://squidfunk.github.io/mkdocs-material/" target="_blank" rel="noopener"> Material for MkDocs </a> </div> <div class="md-social"> <a href="https://twitter.com/qrs" target="_blank" rel="noopener" title="twitter.com" class="md-social__link"> <svg 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Blinky - Trammell Hudson's Projects