Nervous that your voice assistant is listening to you? Make your own, with a switch to disable the mic circuit! This Voice Bonnet for Raspberry Pi that Adafruit just released gives you everything you need to easily make a Google Home assistant.
Adafruit Industries is one of my favorite companies. They do a lot of education outreach, with tons of tutorials and packages for STEM classrooms and electronics/coding exploration.
Check it out here: https://www.adafruit.com/product/4757
Product Description: Your Raspberry Pi computer is like an electronic brain – and with the Adafruit Voice Bonnet you can give it a mouth and ears as well! Featuring two microphones and two 1 Watt speaker outputs using a high quality I2S codec, this Pi add-on will work with any Raspberry Pi with a 2×20 connector – from the Pi Zero up to the Pi 4 and beyond (basically all but the very first ones made).
Jake Sandakly 