In this chapter, we reviewed four projects involving the Raspberry Pi Zero (and Python programming) that focused on specific improvements around the house. This includes a voice assistant, web framework-based appliance control, physical activity motivation tool, and a smart lawn sprinkler. The idea behind these projects were to demonstrate the applications of python programming in improving our quality of life. We could demonstrate that it is possible to build applications (using the Raspberry Pi Zero) that can serve as a better alternative to expensive off-the-shelf products.
We also recommend the following project ideas for your consideration:
- Slack channel-based appliance control: Are you concerned about the temperature conditions back home for your pets while you are away at work? How about setting up a temperature sensor to send a slack channel alert suggesting that you turn on the air conditioner?
- Tabletop fountain: Using a Raspberry Pi Zero and an RGB LED strip, you can create lighting effects for a tabletop fountain.
- Bird feeder monitor: This is something we have been working on for a while now. We are trying to track birds that come to feed in a backyard feeder. The bird feeder is equipped with a Raspberry Pi Zero and a camera. Stay tuned to this book's website for some updates.
- Holiday lights controller: How about some special light and audio effects during the holidays?
- Controlling off-the-shelf products using Raspberry Pi Zero: Do you have a lot of Wi-Fi-enabled electrical outlets lying around unused? Why not try to control them using your Raspberry Pi Zero (hint: IFTTT).
- Pomodoro timer: Have you heard of the Pomodoro technique for productivity? How about an interactive device to improve your productivity?
Learning Resources
- Setting USB Soundcard as the default audio source: http://raspberrypi.stackexchange.com/a/44825/1470
- arecord/aplay options: http://quicktoots.linux-audio.com/toots/quick-toot-arecord_and_rtmix-1.html
- MAX9814 setup tutorial: https://learn.adafruit.com/adafruit-agc-electret-microphone-amplifier-max9814/wiring-and-test
- Understanding optocouplers: https://www.elprocus.com/opto-couplers-types-applications/
- Relays and kickback voltages: http://www.coilgun.info/theoryinductors/inductivekickback.htm