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Open-source testing platform capable of performing Nitrate Reductase Nitrate-Nitrogen Analysis Method. This allows you test for nitrates in water, soil, etc. Arduino compatible - read the tests on your Android device. For BOM, electronics and instructions please use resource link #1. For...

Open-source testing platform capable of performing Nitrate Reductase Nitrate-Nitrogen Analysis Method. This allows you test for nitrates in water, soil, etc.   Arduino compatible - read the tests on your Android device.   Resource Link 1: BOM, electronics and instructions ...

This is a quick customizable way to make an array of columns of any size and with any size columns.  This little design is a great example of the beauty and power of OpenSCAD as it has lots of uses -- everything from setting up a 3-D printable plinko game to using them to make holes in...