Archive for January, 2012

Arduino PID Autotune Library

Saturday, January 28th, 2012

At long last, I’ve released an Autotune Library to compliment the Arduino PID Library. When I released the current version of the PID Library, I did an insanely extensive series of posts to get people comfortable with what was going on inside.

While not nearly as in-depth, that’s the goal of this post. I’ll explain what the Autotune Library is trying to accomplish, and how it goes about its business.

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Collapsible Knitting Needle

Sunday, January 22nd, 2012

I needed a break. I’ve been working hard on the osPID for several months, and I just needed to not look at code or control algorithms for a little bit. Nothing says “break” like an out-of-left-field project.

I only started knitting recently. Something that’s been bothering me about it is the length of the needles. They’re 14″ long, and I’ve been worried they’ll be bent while riding in my backpack.

It occurred to me that some sort of collapsible needle might be useful in this situation. Taking my inspiration from elastic tent poles, I got to work on my “not PID” project.

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PID-Controlled Espresso Machine [PID Showcase]

Monday, January 16th, 2012

It is to my great delight that I can confirm that this Kick-ass, Kickstarting, Open Source Espresso Machine is using the Arduino PID Library.

They seem to be using a stand-alone commercial pid controller for at least some of the control. Perhaps this could be replaced with an osPID for a 100% open experience?

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Introducing the osPID

Tuesday, January 3rd, 2012

About 5 months ago I sent an out-of-the-blue email to RocketScream electronics asking if they wanted to help me build an open source PID controller. It’s been far more challenging than I expected, but today I get to announce the release of my first open source hardware project: the osPID!

(pause for applause)


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