If you would like to out custom home automation systems and devices to your home or business you may be interested to know that the HomeSpan Arduino library available from Github provides an ...
On the hardware front, you can use an old smartphone with a working mic and speaker to use the Home Assistant Companion app ...
The ReSpeaker Lite ($32) is a ESP32-based audio kit with a 2-mic array from Seeed Studio that can transform your old speakers ...