Diffuser Teardown with Schematic Did I get my dollar's worth

Picked up a diffuser from the local charity thrift store 0:00 What it does and how it works 2:28 Air flow unrestricted with a Anemometer 3:40 Teardown 6:00 Close up of board and microcontroller 6:09 Schematic. Hey I can reuse this board if I want a simple on/off with controller