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Arduino Day was pretty successful. Unfortunately, everything is broken.

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Rough notes on our rationale for switching databases.

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The devs switch underlying databases for SparkFun.com and somehow, miraculously, the sky stays put firmly up above.

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In which we change some things in the database, and it's not exactly a simple task, and some things break. Lessons learned. etc.

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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…

I graduated with a degree in Mathematics. Later did I knew that I have interest in stuff like this after I graduated. I love robots since I…

And I guess right now here's another one So your melody will play on and on, with the best of 'em [the impossible…

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.…

You are correct about start mode. That was an over site on my part. I believe the mower will start in gear, with brake off but that's…

Thanks for the links. If there isn't a community there certainly should be. I know of several projects myself.…

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