> one is acting as an “on air” indicator to let folks know when a microphone is hot in the room (typically working-from-home zoom meetings).
How did you achieve this? I'd be very interested in setting something like this up for myself... Thanks.
How did you achieve this? I'd be very interested in setting something like this up for myself... Thanks.
It just so happens that the computer being used for the Zoom calls is a Mac, so I just wrote a program that runs in the background on the Mac and asks the OS about whether any microphone devices are in use by any programs, and then sends a message to the Pi, which really is only turning a hat of LEDs on/off based on UDP packets it receives. It could be turning the indicator on/off for anything that somebody else told it to do it for.
(Originally, I was using an Arduino Nano and a USB serial interface for communication, but my flatmate rewrote it to go over UDP to a Pi Zero W, as he wanted to use a particular RPi hat as the indicator lights)
Detecting the microphone on/off status on OS X was shamelessly ripped off from the answer to this StackExchange question: https://stackoverflow.com/questions/37470201/how-can-i-tell-.... I don’t know if there’s a similar approach that would work for Windows or other OSes.