Some of my favorite builds, hacks and projects from the past year

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Build a party decoration that encourages partygoers to dance!

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Deck the beards this year with addressable LEDs

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Importing custom artwork into a PCB CAD program is a fun way to personalize your board.

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Meet Feldi!

Get to know SparkFun's newest Creative Technologist.

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How to set up an Arduino as an in-system programmer (ISP) and program an Atmel ATtiny84A to blink

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The case for formalizing free exploration opportunities

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There are two basic ways to connect electronic components with two terminals: series and parallel. In this episode, we examine those two types of circuits and show how to calculate equivalent resistance.

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Power is the rate of doing work, and for electricity, that means the rate in which energy is converted in a circuit.

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Let's look at the resistor and how it affects current and voltage in a circuit. Here's a hint: if you know two of either voltage, current or resistance, you can solve for the third.

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In this episode, we'll explore how electric current flows through a circuit.

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Over the next few weeks, we'll explore the basics behind electricity in a series of videos.

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Let's dissect another section of EdiBot 2.0 and learn how to spin DC motors with Python.

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The newest version of EdiBot relies on contour finding in OpenCV to locate and chase yellow objects.

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How to make faux neon signs with EL wire and rigid aquarium tubing

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Adding a chronograph to a Hot Wheels track to measure the speed of passing toy cars.

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What's inside the crowd participation wristbands you find at major events?

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Recent Blog Comments

Hahahaha, that’s awesome. Sadly, I’m slightly too young and missed the TRS-80 days (although I’ve heard plenty of stories!). Were there any…
Come on…My TRS-80 originally only had 4K programming space and we did some pretty nice UIs (remember Hangman?). I never understood why…
I’ve posted a comment on the page for the PiJuice HAT. Hey, at least this one includes a solution…
Linking up to the pedal would be sweet!! I dig that idea, and I just got out of guitar land Pete don’t drag me back in… I’d absolutely be…
Good suggestion, thanks! It seems that Kivy supports a lot of newer interfaces like smartphones and multi-touch.
Thank you for the tutorial. I highly recommend Kivy - at least for the applications that we use it for. At my company we are using it for…
# higher density? DO IT ;-) –> use the APA102 2020 LEDs (2x2mm) :-) - this gives you better…
One thought: There are folks who like to put on some really fantastic “Holiday Displays”, making lights on their houses “dance” to the…
Thanks! For the demo in the video I used an ESP 8266 but for the final build I’m using an ESP32. I discovered a timing issue with multiple…
Great project! One tidbit conspicuous by its absence is mention of what processor you used. I’m afraid I’d be distracted from playing the…

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