Detect audio (voltage)
Send IR command (switch receiver input)
- Learn IR Command
- Adjust detection sensitivity
Result - When a Sonos Connect zone is activated it switches receiver to the correct input.
Any tips for easy (simple) execution? I have limited electrical engineering experience. My first thought is intercept once channel on the RCA out and run them to a microphone interface, where I remove the microphone and wire it to RCA. Detect audio using microphone interface then build out IR system.
Or go Arduino with ADC