After quite a few weeks of work we managed today to hack thoughtfully meld a bunch of code and electronics to produce a device that can do three things: 1. Control a 12-volt pump’s speed and flow output, and 2. precisely measure that output in ml/second, 3. ...
Here you can see the first operational version of a small Arduino-based flow meter we’ve built based on an open source design. Parts cost is roughly $75. Compare that with at least $600 for similar commercial models. And this one can be built from easily...
We’re nearly finished with a complete redesign of our Em2 model. Here’s detail of a wood/acrylic mock up of the new legs. How to design. Hire consultants? For a small project, the finding/contracting can dwarf time spent on actual work. I have to start by...
We’ve had a busy couple of weeks with our Emriver Em2. First, Andrew Podoll, an NSF-funded geology/education GK-12 HEART fellow at SIUC, borrowed the Em2 for a student research event. It was a huge hit with the kids, as you can see. Last weekend I hauled to...
I’ve spent many hours over the last week and most of today trying out new ideas. There is no way other than building these mock ups. I enjoy the work. But not the long hours. Thanks to many helpful collaborators! Too bad my aviation tech professor friend...
