I'm thinking about putting together a small mono bluetooth speaker that will also accept input through a 3.5mm jack. I'm wondering if there is a type of switched jack that will allow me to wire so that the signal from BT is cut off anytime a plug is plugged into the 3.5mm jack.
I'm thinking about putting together a small mono bluetooth speaker that will also accept input through a 3.5mm jack. I'm wondering if there is a type of switched jack that will allow me to wire so that the signal from BT is cut off anytime a plug is plugged into the 3.5mm jack.
I think this part is pretty typical of switched 3.5 mm jacks:
ACJS-MV35-5 Amphenol Audio | Mouser
It has two normally closed contacts that are grounded when the jack is empty, and float when a plug is fully inserted.
I'm not sure if I follow. Here's the diagram from the data sheet:
So with no plug there's a closed switch between 4 and 5 and between 2 and 3? So in general use Pins 1, 2, and 5 would go to ground and Pins 3 and 4 would go to the inputs of the amp?
So there's not really a way to use these switches to interrupt the signal from another device?
So with no plug there's a closed switch between 4 and 5 and between 2 and 3? So in general use Pins 1, 2, and 5 would go to ground and Pins 3 and 4 would go to the inputs of the amp?
So there's not really a way to use these switches to interrupt the signal from another device?
So there's not really a way to use these switches to interrupt the signal from another device?
Try this link for jacks that have more flexible switching options:
SJD-3511-45 CUI Inc. | Connectors, Interconnects | DigiKey
What happens if I use the switched jack here:
...and connect the bluetooth line outs to pins 2 and 5 and the amp inputs to pins 3 and 4? Will that do what I want it to do? Take input from the BT except when there is a plug in the jack, then take the input from the jack?
...and connect the bluetooth line outs to pins 2 and 5 and the amp inputs to pins 3 and 4? Will that do what I want it to do? Take input from the BT except when there is a plug in the jack, then take the input from the jack?
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What happens if I use the switched jack here:
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...and connect the bluetooth line outs to pins 2 and 5 and the amp inputs to pins 3 and 4? Will that do what I want it to do? Take input from the BT except when there is a plug in the jack, then take the input from the jack?
I can't load the file - probably because the URL is huge!
Sorry, I'm still trying to figure out best way to add photos here.
Does this work:
Does this work:
An externally hosted image should be here but it was not working when we last tested it.
Sorry, I'm still trying to figure out best way to add photos here.
Does this work:
An externally hosted image should be here but it was not working when we last tested it.
That works for me.
Now, does your BT module have outputs that will work this way?
Image is attached.
I don't have a bluetooth module in hand, but I believe that a stereo bluetooth modules should have line level left and right outputs. If I was using only the bluetooth I would connect these outs directly to the ins on the amp.
The question is whether the switched jack works the way I think it does. As far as I know it has very little to do with the bluetooth itself.
I don't have a bluetooth module in hand, but I believe that a stereo bluetooth modules should have line level left and right outputs. If I was using only the bluetooth I would connect these outs directly to the ins on the amp.
The question is whether the switched jack works the way I think it does. As far as I know it has very little to do with the bluetooth itself.
Attachments
In other words can I wire my inputs as in the attached diagram?
Looks like.
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