If you are interested in more information, have a suggestion or need an amplifier printed circuit board, you are welcome to contact me.



Audio switch with Arduino processor.
When audio input is sensed, the solid state relay (SSR) is switched on almost immediately.
After about 5 minutes without music, the SSR is turned off.

The software tries to discriminate between music and a spike on the mains.

Documentation can be found here.
The software can be found here.