I'm in the middle of a project that uses multiple BMP085 pressure sensors and wanted a way to test the output of my code. Here is a test chamber that uses a column of water to maintain pressure. The water column half of the cylinder has four notches. The First notch is at the top of the hole between the two chambers. There is a notch every inch above that.1: Print2: Inspect for any cracks, unless you like water all over your desk.3: place sensor in side sensor box, seal up any wires with epoxy, hot glue, or whatever works.4: insert sensor box into hole on top of the test chamber, seal it up.5: Add or remove water and watch your sensor register the change