This is still a work in progress, but I’m working on a project for K12 science teachers and anyone interested in weather, the Internet-of-Things, and/or 3D printing.  Nearly all of the parts can be printed on even the smallest of 3D printers. The design has been tested on the Monoprice Select Mini printer, one of the least expensive 3D printers available today.

You can download the .stl files to print the box and the rotor assembly for the anemometer from Thingiverse.  The electronics are based on  Electric Imp’s ImpExplorer Developer Kit, and you’ll need a few additional parts, all of which are available on Amazon. If you have access to a 3D printer you can build one for under $35.00. See the 3D Printing notes and the Parts List for details.  (Learn more about the Electric Imp.)

I’ll be working with friends who are teachers to put together lesson plans for K12 science classes. This project offers a plethora of lesson topics: 3D printing, computing, IoT, math, and earth sciences to name a few.

  1. You can track the progress of the project on the road map page.
  2. The first prototype Wx Imp is operational.  It’s located in downtown San Jose.  While it does go off-line frequently for updates and changes, you can usually see current readings on its dedicated web page.
  3. Added the first cut at Imp Code to a public GitHub repository.
  4. Added instructions for setting up the IDE and loading the code to the Imp.
  5. Added a page on Barometer Calibration.
  6. There’s a problem with the box design.  It requires better weatherproofing as the humidity sensor on the Imp Explorer fails if it actually gets wet.
  7. Added a page with Anemometer Wiring instructions.