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

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SparkFun is supporting regional alternative transportation goals by making biking to work fun!

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By recycling industrial waste, composting, donating materials to local educators and harnessing solar, we're getting greener every year.

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Student team wins big for wasteless design incorporating Arduino

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Students at Colorado School of Mines aim to maximize energy efficiency in model build

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IoT can be leveraged for a more sustainable future. As makers, we can take action at home.

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In this week's Enginursday, Joel shows off his aquatic turtle habitat, complete with an above-tank basking area, automated lighting, and an aquaponic feeding system.

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A look into our awesome solar array and what it's doing for SparkFun.

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Learn how data.sparkfun.com can help you not just collect data, but also use that data to make hypothesizes, see trends, and make adjustments to a variety of systems.

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Check out this video tutorial for building your own soil moisture sensor.

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Show us what you can make out of reused parts!

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How to create a simple and cheap time-lapse rig with the Raspberry Pi.

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Joel shows us how to build a handheld pH sensor to regulate his aquaponics system.

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Sweet! I like the use of the ESP8266 to log data on ThingSpeak.

Great idea. 😀 I'm going to build an electric go kart next and that will greatly simplify the control system.

One change that would eliminate the need for a servo and gear shifter is use an electric generator to run an electric motor using a variable…

Please be aware that most SSRs ( If not all ) have a leakage current so there is a voltage present on switched side of the SSR even when it…

You're math is quite correct. Good catch!

"Flipping a light switch can often take upwards of 1000 milliseconds, assuming you are even close to it!" and later on "extremely fast…

A few other points (from someone who's been using relays for more than half a century): Although you alluded to it near the end, mechanical…

You might want to mention that there are different kinds of SSRs to switch different loads (AC, DC, AC/DC). While obvious after the fact,…

Per your request I started a google group DIYMowers I also purchased diymowers.com. Please join.…

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