File:Random LED Dots.webm
Random_LED_Dots.webm (WebM audio/video file, VP8/Vorbis, length 4 min 1 s, 640 × 480 pixels, 745 kbps overall, file size: 21.37 MB)
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Summary[edit]
| Description |
English: A simple multiplexed RGB LED array controlled with hardware SPI from an Arduino Pro Mini. Each pulse from a Geiger sensor produces a 32-bit random number that sets the color of one RGB LED site.
The first part of the video shows the "lamp test" sequence. Before the Arduino sketch begins running the LEDs show a static pattern, then the sketch blinks each LED site in succession, fills the entire array with random colors, and begins executing the main loop that changes one LED at a time. The rapid count comes from a radium-illuminated wristwatch near the Geiger sensor that produces about 160 count/minute. The last minute shows the 12 count/minute background rate. More info on my blog, starting at: http://softsolder.com/2015/05/18/random-led-dots-hardware-layout/ |
| Date | |
| Source | YouTube: Random LED Dots – View/save archived versions on archive.org and archive.today |
| Author | ednisley |
Licensing[edit]
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- attribution – You must give appropriate credit, provide a link to the license, and indicate if changes were made. You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use.
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This file, which was originally posted to YouTube, was reviewed on 7 December 2019 by the automatic software YouTubeReviewBot, which confirmed that this video was available there under the stated Creative Commons license on that date. This file should not be deleted if the license has changed in the meantime. The Creative Commons license is irrevocable.
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 09:06, 11 July 2018 | 4 min 1 s, 640 × 480 (21.37 MB) | Vislupus (talk | contribs) | Imported media from https://www.youtube.com/watch?v=ECMNq2goSFo |
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