Does anyone know if this possible on the Bluetooth amplifier board? Ideally I would like to be able to fit and rotary switch to turn the board on but also control the volume with the same switch.
TDA7492P 50W+50W Wireless Bluetooth4.0 Audio Receiver Digital Amplifier Board
TDA7492P 50W+50W Wireless Bluetooth4.0 Audio Receiver Digital Amplifier Board
I think so, you just need to install it between the bluetooth module and the amplifier, so you'll need steady hands and small wire. You can probably find some tips in the other TDA7492 thread where's lots of closeup pictures of these boards. And you need to find the pin layout for the bluetooth module.
Uh, the soldering point on the BT module is 'cold', and it's a huge blob. You also burnt the power plug. With that set of 'skills' you'll want to train quite a bit more before soldering on SMD. Besides that, there is already a digital volume control on the board.
I know, my soldering iron is too powerful for small jobs, I'll need to invest in something less aggressive if you're plan on doing any more.
To be fair, the "mod" �� works well. It's increased the range massively!
If I wanted a rotary control, would it be possible? Could I mod the volume controls on the board?
To be fair, the "mod" �� works well. It's increased the range massively!
If I wanted a rotary control, would it be possible? Could I mod the volume controls on the board?
Don't tell me the soldering iron is to blame you've burnt the power plug. THAT soldering pin got nothing to do with the wrong soldering iron!
The whole control for the amp is on the BT board. It is theoretically possible but I wouldn't do it and especally not without you improving vastly on soldering.
The whole control for the amp is on the BT board. It is theoretically possible but I wouldn't do it and especally not without you improving vastly on soldering.
The power plug is actually the aux in.
Is there any chance you would help me? I know my soldering will need to improve but it's an £8 board so even if it doesn't go well, I need to start somewhere and it will help me learn
Is there any chance you would help me? I know my soldering will need to improve but it's an £8 board so even if it doesn't go well, I need to start somewhere and it will help me learn
Okay, fair enough. Follow the AUX in to where it's switched with the BT audio (likely at the plug itself), cut both the r+l signal contact, solder a wire onto each and one on - and insert a 50k log. potentiometer wired as a voltage divider (input on the middle, one on gnd, one on the signal 'out'). Done.
hi,
i got exactly the same question in another thread (and i got exactly the same board as in the first post):
i really want to use that potentiometer since it got a switch so i can switch on the board. but it says: Type : Dual Linear(Type B)
so i can put it between the 2 pins link in my quote and than like you said "(input on the middle, one on gnd, one on the signal 'out'). "
?
i got exactly the same question in another thread (and i got exactly the same board as in the first post):
i really want to use that potentiometer since it got a switch so i can switch on the board. but it says: Type : Dual Linear(Type B)
so i can put it between the 2 pins link in my quote and than like you said "(input on the middle, one on gnd, one on the signal 'out'). "
?
found this a while ago, haven't tried on my tda7492p but it works on my pam8403
An externally hosted image should be here but it was not working when we last tested it.
hello whats the difference? because the one i linked says "Dual Linear Taper Volume Control Potentiometer "
and i cant find a steroe 50k potentiometer with a switch + log
@luisxd thanks for the picture i will try that
As you might guess, resistance changes logarithmically in a log pot and linearly in a linear pot.
Our hearing progresses logarithmically, so volume changes with a log pot will sound natural and smooth. A linear pot will sound jumpy.
Our hearing progresses logarithmically, so volume changes with a log pot will sound natural and smooth. A linear pot will sound jumpy.