Using a Raspberry Pi Zero W and an SGP30 air quality sensor from Adafruit, one Instructables user, Tim Clem, has created a plant pot with personality. They’ve added a small amp and speaker for sound and a Pimoroni Blinkt for indicator lights. Finding no Python library for the I2C-accessible SGP30, they’ve written their own (which is available on Github). They’ve also added Google Sheet logging for the readings. The real magic came when they added sound effects for when the air quality dropped – they recorded a coughing sound for this which is routed through the amp and speaker. The enclosure is a mixture of wood and acrylic (which keeps the electronic components dry). All the code is available on Github and you can read how to build your own on Instructables. A video of it in action is below: