Summary

Simple press fit case to house a cheap PIR motion detector and the D1 ESP8266. Perfect for use with Home Assistant.
USB Powered, no hardware needed as the lid is snap fit.

This is a old project (2019) and I am no longer supporting anything related with it

Known issue
The WIFI RF creates too much noise and makes the PIR false trigger.
I created a divider in which I covered in foil tape to help but it still caused some issues.
Step files are provided if you would like to modify my design.