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Add color to your projects with analog LED strips!

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Long exposure experiments with dancers, EL Wire suits, an LED and DSLR camera.

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I have finally gotten the hardware in (mostly) working order for my wacky fiber optic light suit. Let's check out what I've done!

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Details from a project upgrading an old incandescent lamp to utilize addressable LEDs

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Check out our latest tutorial on levitating magnets and creating a wireless light!

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Are you crystal, gem or mineral collector? Display them in style with an underlit display.

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This visually pleasing project has endless possibilities for customization and design.

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Let's figure out just how fast we can push data through APA102 pixels. Then let's look at what we can do with super fast lights.

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A simple and inexpensive way to add a little flare to some thrift store treasures.

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Instead of buying expensive, one-color LED kits to attach to your helmet, use SparkFun addressable LEDs!

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Don't have time to make a costume this year? We have you covered with this cute, super-quick costume for all ages!

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Using slow shutter-speed photography to capture sound waveforms

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I'm not a Python guy but that code doesn't do what you say it does. The first comment already picked the derivative created by the following…

CENTER TURN Each wheel rotates in opposite directions, bot turns about it's axis. Theta is the angle to turn in degrees Ep is encoder pulses…

By phase I just meant the wheels were out of sync a sequence of encoder counts; (0,1) (1,1) (1,2) is not indicative of one wheel traveling…

Hey #812, Thanks for chiming in here! I had some fun tweaking the Twist firmware to get better resolution. I'm currently getting about 600…

I've done this with the Arduino, and the parallax boebot encoders with students. They have worse resolution than your encoders (64 per wheel…

I tried the code and it did not work for me. FOR ANYONE ELSE TRYING IT: If you want it to work, in the attachInterrupt, set the third…

Here's a photo of the the wooden key. I'm proud. https://www.dropbox.com/s/nzxsg77x08eytsx/2020-04-06%2015.51.02.jpg?dl=0

Hi! I'm fixing one of these up. Just carved a new key out of wood! But the motor is so noisy! Do you think there's a source for quieter fan…

I remember how hard it was trying to come up with a traffic light model for my science project back in high school.

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