Hello,
Some time ago i build simple small (<3W) amplifier based on TDA7056A.
I use this for speaker test purpose.
Now i would like to enhance it's capabilities with 2 led detectors.
I'm looking for something what will be connected in series with input and will show me "on / off" is mp3 player is connected and sending signal.
Not need any blinking ect, just information "is something comming in wire".
Same thing with output, led what will show me am i connected correctly to speaker, or wires are in the air connected to nothing.
If wires are not connected to anything, led should stay dark, but when i connect them to speaker and something will be player it should light.
Just to get me idea "its connected succesfully".
Do You have any idea ?
I DO search forum and find some examples, but they are complicated, involved many parts, cutting some frequencies. In my opinion there are to complicated to do the job what i need.
If anyone came up with something.
Please share.
Some time ago i build simple small (<3W) amplifier based on TDA7056A.
I use this for speaker test purpose.
Now i would like to enhance it's capabilities with 2 led detectors.
I'm looking for something what will be connected in series with input and will show me "on / off" is mp3 player is connected and sending signal.
Not need any blinking ect, just information "is something comming in wire".
Same thing with output, led what will show me am i connected correctly to speaker, or wires are in the air connected to nothing.
If wires are not connected to anything, led should stay dark, but when i connect them to speaker and something will be player it should light.
Just to get me idea "its connected succesfully".
Do You have any idea ?
I DO search forum and find some examples, but they are complicated, involved many parts, cutting some frequencies. In my opinion there are to complicated to do the job what i need.
If anyone came up with something.
Please share.