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January 12, 2011
News - April Caption Contest |
about 2 weeks ago
Dude, when I said let’s go pick up chicks, this isn’t what I meant.
News - Your SparkFun January Cap… |
about 3 months ago
Safe!!!….. uh… maybe not….
News - New Product Friday: Etch-… |
about 5 months ago
Hey Robert, You say at the end 32x64 and 64x64, wouldn’t that be nice?
News - New Product Friday: OLED … |
about 7 months ago
Updated, as I misread the datasheet ;)
You push all the data for the entire strand at once. When the refresh timeout happens (>50us delay in data), the entire strand is refreshed with the new data. If only one led’s data changed, it will be the only one that changes. You certainly can change only one LED at a time. See my reply above for timing, the datasheet is quite helpful as well.
If you read the datasheet for WS2812, the longest a bit can be is 1.3us, so each led requires 24bits, 60 leds per meter, the longest a refresh would take would be 1872us, or 1.872milliseconds. With a 50us delay between refreshes, you could acheive in the neighborhood of at least 500 refreshes of the entire meter per second. Obviously you'l likely have more than 50us between refreshes, because you’ll need to do some calculating on the microcontroller, but it can have a pretty good refresh rate.
News - Introducing the video bro… |
about 7 months ago
Not gonna lie, I watched that bearded gentleman fall down dozens of times. That’s some good stuff right there ;)
Product COM-11821 |
about 10 months ago
Actually, Adafruit sells a 10 pack for 4.95. These at 10 are .45 each, making them cheaper at SparkFun :) Although I do think I like the NeoPixel boards better than the breakouts SF made. Not everything needs to go into a breadboard ;)
News - According to Pete - Spect… |
about 11 months ago
How about arduino compatible paper products, like a greeting card with a built in arduino that can be used with conductive paint to create cool animated greeting cards or posters etc… The flexible circuits would be a good lightweight way to attach some electronics to such projects.
Product KIT-10861 |
“Surface-Mount Display (SMD)”, Um where’s the display? :)
No public wish lists :(