Like many people, my girlfriend and I sleep with white noise in the background generated by a fan in the bedroom. Often enough we’ll forget to turn the fan on until we have already gotten into bed, at which point it quickly becomes a back and forth of “it’s your turn to get up and turn it on” (spoiler: it’s always my turn). Because of this, I have decided to update a fan using Android Things in order to turn the fan on through an app, as we always have a phone near us plugged in to the wall at night.
There are four parts to this project: the IoT fan, the mobile app for controlling the fan, the Google Assistant API, and a Firebase backend for managing state data. While the phone app could communicate directly with the fan through bluetooth, I have opted to use Firebase in order to support scaling the project to other platforms later on, such as a web platform or iOS. Another option that could be used in the future is Google’s Cloud IoT Core, although, at the time of this writing, it is still in a private beta.
To start, this tutorial will set up the fan to turn on and off with a mobile app. While that’s a fun start, we’re going to aim for awesome. The next step will be to incorporate Google Assistant into the device, as I currently have a Google Home in the kitchen, but not one in the bedroom, and this seems like a great project for incorporating that technology. With that said, let’s get started making the initial project!
Each Friday is PiDay here at Adafruit! Be sure to check out our posts, tutorials and new Raspberry Pi related products. Adafruit has the largest and best selection of Raspberry Pi accessories and all the code & tutorials to get you up and running in no time!
Stop breadboarding and soldering – start making immediately! Adafruit’s Circuit Playground is jam-packed with LEDs, sensors, buttons, alligator clip pads and more. Build projects with Circuit Playground in a few minutes with the drag-and-drop MakeCode programming site, learn computer science using the CS Discoveries class on code.org, jump into CircuitPython to learn Python and hardware together, or even use Arduino IDE. Circuit Playground Express is the newest and best Circuit Playground board, with support for MakeCode, CircuitPython, and Arduino. It has a powerful processor, 10 NeoPixels, mini speaker, InfraRed receive and transmit, two buttons, a switch, 14 alligator clip pads, and lots of sensors: capacitive touch, IR proximity, temperature, light, motion and sound. A whole wide world of electronics and coding is waiting for you, and it fits in the palm of your hand.