Amplifier automatic on/off

[dwijtsma]

I already started such a topic in the feature request section, but this is a better place for it.

What I find so great about Runeaudio is that it makes live easier. No fiddling around with CD's or LP's, just all music at one place. To make live even more easy (read lazy ), I don't want to turn on my amplifier by hand any more.

So yesterday I started reading and coding. I now have a python script that toggles an LED. The LED turns on when music is streamed and turns off 15 minutes after streaming is stopped. Using systemd it also runs after a reboot. I want to replace the LED with a simple circuit that turns the amplifier on and off.

I will post the circuit diagram this evening. Constructive criticism is welcome!

[dwijtsma]

[hondagx35]

[dwijtsma]

My current script doesn't check if airplay is used. So I now connect to the redis server and check if 'activePlayer' is 'Airplay', but is their a way to check if airplay is really streaming music or not? Help appreciated!

[hondagx35]

[dwijtsma]

Thanks for the tip! This is a much beter way to go.

[dwijtsma]

This topic has been silence for a while, but my project has made some big steps. I abandoned my previous approach and went full analog!

My amplifier has two inputs: Rune audio and my TV. Therefore I made some electronics to turn my amplifier on if any of the two plays music and turn it off after roughly 20 minutes without music. Next to that I use a signal relay to send the right audio signal to my amplifier.

Now I won't have to touch my amplifier ever again!

For anyone that also wants to build it, here is the schematic:


And a picture of the result:


I tested it and it works nicely after some small changes. Hopefully I have it build in a case next week. More pictures will come.

PS: A lot of credits go to Rod Elliott for his nice designs that I used:

[regs]

Hi There!

Great project!
I'm also thinking something similar so I may use your schematics.

I also noticed that many times internet radios go silent after a while.
So first of all I think I will use your code and modify it to detect if the output is silent for a half minute then turn the playing off and on again.

Anyway great project, Thank you!
Cheers!

[dunghnguyen]

This is great ! Thanks there

[dunghnguyen]

@regs: got what you are worried but his dyi is just off after 15 ~ 20 minutes without signal