I'm looking for some info, so I could google further, few posts on here refer to an opposite situation so I'm asking the question.
I would like to try to create a switch/relay. There would be a single audio source (headphone jack 3.5mm) which I would like to route to up to 3 different outputs. These will connect to various speakers with built in amp. The goal is to use GPIO on raspberry to drive the changes and select correct output(s).
I need ability to control what output is selected, i need to be able to route audio to all 3 outputs at the same time or any given 2. I want to use less than 3 GPIO if possible, I have no limits on parts used.
Questions (I'm not looking for a ready solution - i like a good puzzle)
If i understand this correctly I would be able to output audio to 3 devices without need for an amplification? (since headphones splitters work ok?)
What would be the best approach? Relays? or some sort of transistor switches?
Anything i should be mindful of when working with audio like this? (specific interference problems etc)
Would it be possible to use just one GPIO to drive the changes with some sort of timer ?
I would appreciate your input to my output issues!
I would like to try to create a switch/relay. There would be a single audio source (headphone jack 3.5mm) which I would like to route to up to 3 different outputs. These will connect to various speakers with built in amp. The goal is to use GPIO on raspberry to drive the changes and select correct output(s).
I need ability to control what output is selected, i need to be able to route audio to all 3 outputs at the same time or any given 2. I want to use less than 3 GPIO if possible, I have no limits on parts used.
Questions (I'm not looking for a ready solution - i like a good puzzle)
If i understand this correctly I would be able to output audio to 3 devices without need for an amplification? (since headphones splitters work ok?)
What would be the best approach? Relays? or some sort of transistor switches?
Anything i should be mindful of when working with audio like this? (specific interference problems etc)
Would it be possible to use just one GPIO to drive the changes with some sort of timer ?
I would appreciate your input to my output issues!