How to make a "ON AIR" light up desk toy that lights up when I talk/TX ?

[shodan]

Example

One of these

 

 

But tiny and onmy desk

 

As far as the hardware that's super easy

 

My question is how do I get mumble to tell my thing that it is transmitting ?

 

Here I would build my ON AIR desktop toy

 

Start with an ESP32, an arduino compatible microcontroller with wifi capability

 

This can easily be powered from a simple usb charger

 

And the only addition is a single RED LED connected to GPIO#1

 

I would put in my wifi credentials and open a UDP port, wait for "TURNON" and "TURNOFF"  messages to control the light.

 

On my PC, I have a script,   onair.bat 

 

You run "onair.bat 1"  it sends the TURNON UDP packet and 0 for TURNOFF

 

All I need is for mumble to execute "onair.bat x" when transmitting/stop transmitting

 

How can I do this in a way that would work both windows and linux ?

[Krzmbrzl]

When using Mumble 1.4 or newer you could simply write a small plugin that hooks into the audio input event and from there call your script accordingly (maybe asynchronously to keep the possible impact on latency minimal).

 

See also https://github.com/mumble-voip/mumble/tree/master/docs/dev/plugins