Case for Motion and Temperature / Humidity Sensors for Home Automation

This is a case for combining a PIR motion sensor and an AM2302 temperature/humidity sensor together with a WEMOS D1 Mini module to make an environment sensor for use in home automation.

For reference, the specific components I used are: AM2302 HC-SR501 D1 Mini

The case relies on a friction fit to hold the sensor plate onto the case body.

I removed the header pins and soldered directly to the the components to keep the unit as thin as I could. If you want more room for motion sensor header pins, you can increase the value of "side_z" in the parameters spreadsheet contained in the FreeCAD file and re-export the STL or AMF files. You'll still need to remove the pins from the AM2302 circuit board, since they are mounted to the front side of the board.