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How do you build a better laser? Maybe this way.

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What type of proximity sensor is best suited to your next project? We've put together a Proximity Sensor Comparison Guide to help you choose the right tool for the job!

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Let's add some electricity to your favorite things. I take a LEGO® speeder from Star Wars® and use Arduino to give it a little something extra.

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Wherein we put several sensors through their paces against this year's course.

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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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