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everyday:biking [2019/05/11 14:03]
admin
everyday:biking [2019/05/21 09:00] (current)
admin [Code]
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-====== Biking ======+cod====== Biking ======
   * [[http://​www.activetrans.org/​tricks-tips|Great city biking tips from Chicago]].   * [[http://​www.activetrans.org/​tricks-tips|Great city biking tips from Chicago]].
   * Better yet, be assertive and take up the lane when needed. Don't let cars needle pass you. And communicate well with a thank you. http://​cyclingsavvy.org   * Better yet, be assertive and take up the lane when needed. Don't let cars needle pass you. And communicate well with a thank you. http://​cyclingsavvy.org
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 From Cree, apparently this is a JEDEC spec! https://​www.cree.com/​led-components/​media/​documents/​XLampMCE_SolderingandHandling.pdf From Cree, apparently this is a JEDEC spec! https://​www.cree.com/​led-components/​media/​documents/​XLampMCE_SolderingandHandling.pdf
 {{:​everyday:​pasted:​20190209-131737.png}} {{:​everyday:​pasted:​20190209-131737.png}}
-===== Code Backup ​=====+===== Code ===== 
 +  * Need to have really accurate timing estimate of LED strips because it stops delayMicroseconds() and delay() from working right. I'm off by a factor of two somehow 
 +    * Really helpful to have an oscilloscope / logic analyzer for this, as you can get accurate timings of everything very easily just by pulsing a pin and commenting out everything except each section you're timing. 
 +==== Backup ​====
 {{ :​everyday:​bikestuff.zip |}} {{ :​everyday:​bikestuff.zip |}}
  
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     * Unicorn     * Unicorn
     * Other crazy stuff: {{:​everyday:​img_20190419_104517.jpg?​600|}}     * Other crazy stuff: {{:​everyday:​img_20190419_104517.jpg?​600|}}
 +{{:​everyday:​pasted:​20190519-185757.png}}
 +    * Kinda like the middle one, but it's almost too anime.
   * "bang bang" (on off) blinky lights don't convey distance very well. Our eyes need time to place something. So an oncoming car might think you are farther away than you are and cut in front? Plus they are quite annoying, not so good either. ​   * "bang bang" (on off) blinky lights don't convey distance very well. Our eyes need time to place something. So an oncoming car might think you are farther away than you are and cut in front? Plus they are quite annoying, not so good either. ​
     * Sine wave looked cool...     * Sine wave looked cool...
 +== LED Diffusion ==
 +Looks like the pros use clear plastic infused with barium sulfate: https://​www.prnewswire.com/​news-releases/​light-scattering-grade-barium-sulfate-248191361.html. Will see what it's like at TAP plastics.
 +
 +I liked the polyethylene at Ace. Kinda milky
 +
 +TAP plastics, they have:
 +  * LED Light Panel Sheet, thin, easily bendable and probably adjustable. https://​www.tapplastics.com/​product/​plastics/​plastic_sheets_rolls/​led_ligh_panel/​598
 +  * Satinice White, https://​www.tapplastics.com/​product/​plastics/​cut_to_size_plastic/​satinice_white/​655
 +
 +  * {{youtube>​KqYq21fSfRU?​medium}}
 +    * Huboptic makes good diffuse light masks, but pretty sure they'​re all with EL panels (somehow addressable!,​ probably with lots of small wires). Nice work, but too dark for my needs. But they do have some LED ones too....
 +    * {{youtube>​F-mzh7kvARo?​medium}}
 +
  
 === Solutions === === Solutions ===
everyday/biking.1557608609.txt.gz · Last modified: 2019/05/11 14:03 by admin