This program shows an overlay on your PC when you adjust the volume on a Denon or Marantz AVR. This is useful if you don't route video through your AVR via HDMI, which would offer similar functionality.
You need an Denon or Marantz AVR with telnet connectivity. Only tested on Windows, but should work elsewhere.
Install dependencies:
pip install denonavr async_tkinter_loop
Set your AVR's IP address to the AVR_IP_ADDRESS variable in the avr.py and test with py.exe avr.py.
When everything works, you can for example in Windows use the Task Scheduler to run the script after user login. Use pyw.exe (or pythonw.exe) as the script to run to avoid command prompt appearing, and set the path to avr.py as an argument.
When adjusting volume, the overlay should appear in the top right corner of the screen, and disappear after one second.
