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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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Do any of these have a native video out capability? Or would I have to build that from scratch for myself?

Thanks! The necessary sample rate is sort of dictated by the tempo of typical children's music. For example Jingle Bells, Mary Had a Lamb,…

creative idea! and nice write up!! what were your initial concept ideas for the needed sample speed?

Awesome. But how did you disable the highly vulnerable receiver built in to your garage opener?

Ah cool. For the comparison, I wanted to keep it simple with only temperature measurements. The humidity/temperature sensors lowers the cost…

I studied linear circuits and analysis in my second smester of university and i struggled a lot in making circuits especially digital clock.…

I have 11 temperature sensors in and near my house. They are of four different models, none of which are on your list. AM2302, AKA DHT22:…

I have tested the DS18B20 briefly. It is an alternative option for that distance using its the digital output. This was one of the…

I was using an analog input on the ATmega328P to read the TMP36 without a library. The spike between 55 to 72 was surprising to me as well.…

I would look a little closer at your data for the TMP36. When it changes from 68 to 72, the bits go from: 10001001 10010001 That single-bit…

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