There are lot of Air Fresheners in the market: from the old manual sprays, to timer triggered ones. The later ones, although automatic, are quite dumb: they will keep spraying even if you're not even close to feel the smell, wasting those not so inexpensive fragrance refills!
Wouldn't it be nice if your air freshener was capable of communicating with other gadgets and trigger only when you really needed it?
In this project I designed an IoT Air Freshener, using some 3D printing, a NodeMCU, IFTTT and Adafruit.IO. The gadget might be programmed to be triggered when you are home, at a given time, when you push a button, or even to notify if you've got mail!
You can find full instructions at Instructables:
Did you know you can buy a Anet A8 for only $129,99?
Use the coupon code A8KIDA at Gearbest and get it: http://bit.ly/2zIsV5j
Please vote on this project for The bathroom of tomorrow contests! :D
Object size: 62 x 63 x 97 mm
Printing time: 9 hours
Supports: only for "front" and "back" parts.