Hello, I am working on a project with arduino.
When a button is pressed in my project, a warning sound plays from the SD Card in the DFPlayer Mini module. However, I don't want to use the speakers I use in this project just for a warning sound.
I explained what I wanted in the image, how can I do this?
When a button is pressed in my project, a warning sound plays from the SD Card in the DFPlayer Mini module. However, I don't want to use the speakers I use in this project just for a warning sound.
I explained what I wanted in the image, how can I do this?
the simplest way of switching sources is to use a relay.
This is how many pre-amps are built.
You only need to switch the signal R & L wires, the ground wires are left connected.
Use a small signal relay (not a power relay).
You control the relay with the Arduino (using a transistor to switch the relay current as described in any Arduino book).
This is how many pre-amps are built.
You only need to switch the signal R & L wires, the ground wires are left connected.
Use a small signal relay (not a power relay).
You control the relay with the Arduino (using a transistor to switch the relay current as described in any Arduino book).
Thank you very much, I translated and read this with the translation tools, but I could not get any information because I could not fully understand the translation.
My English is a little weak :/
I'm new to this stuff. Could you advise me on how exactly I should connect both the bluetooth module and the DFPlayer's R G L to the Pam8610 module? So what am I supposed to do with a simpler language?
Do I need to connect 10k resistors to each input (R G L) of the Amp from Bluetooth and DFPlayer?
So how can it be done without a signal relay?
Now I discovered a new module. M18 Bluetooth 4.2 module. There is a mute button on it. With Arduino, if DFPlayer starts playing music, I will mute the bluetooth and control it that way.
But I am confused on how to connect the output (R G L) connections of 2 different sources to the input (R G L) of the pam8610 module.
I'm afraid of doing something wrong and damaging the modules. I'm looking for a solution so that the signals don't get mixed up and make noise when they're on the same connection.
Put a 10k resistor in each lead. 4 in total.
One in the orange lead from the DF Module,
One in the blue lead from the DF Module,
One in the orange lead from the BT Module,
One in the blue lead from the BT Module,
The green (Gnd) does not need a resistor.
One in the orange lead from the DF Module,
One in the blue lead from the DF Module,
One in the orange lead from the BT Module,
One in the blue lead from the BT Module,
The green (Gnd) does not need a resistor.
START by stating your Language and Country.
Surprised that many do NOT post that very important information which influences answers and suggestions A LOT.
or some members post "something" which is irrelevant, such as
3RS (third rock from the Sun , meaning Planet Earth) or "Neverland" or "home of the pineapple pizza" or similar unrelated data.
or slightly better but not enough "European Union", much favoured by Easter Europeans.
Me? very proud of being Argentine and boldly state so in my signature, go figure.
Thank you I will try.
Dude, I didn't know I should say this, it's okay and I'm Turkish. The only problem right now is about how I can make this circuit :/
Thanks.
Point is Online Translators are horrible or at least very dumb, so sometimes we must guess what they wanted to say 🙁
Knowing what original Grammar is can help 🙂
Same with suggesting parts: different Countries different preferred suppliers.
Of course Alibaba delivers worldwide 😉
Back to your problem.
No clue about Arduino so can´t tell you how the digital part works, BUT russC has sugested different methods to do it.
1) the simplest in concept: use a small relay (maybe calling it an "audio" relay is confusing to you, it´s actually a common part), so it works as if you were manually unplugging BT music and plugging the DF Player in, where I guess what you call "music" is a spoken warning or a siren type sound.
Is it like that?
2) both BT and DF players are always connected to amplifier
To join outputs together you need "separation" resistors, that´s what those 10k ones are for.They will somewhat attenuate signal, but usually that´s not a problem.
When you push a button, somehow (not my field) Arduino mutes BT and enables DF
Is that what you want?
Point is Online Translators are horrible or at least very dumb, so sometimes we must guess what they wanted to say 🙁
Knowing what original Grammar is can help 🙂
Same with suggesting parts: different Countries different preferred suppliers.
Of course Alibaba delivers worldwide 😉
Back to your problem.
No clue about Arduino so can´t tell you how the digital part works, BUT russC has sugested different methods to do it.
1) the simplest in concept: use a small relay (maybe calling it an "audio" relay is confusing to you, it´s actually a common part), so it works as if you were manually unplugging BT music and plugging the DF Player in, where I guess what you call "music" is a spoken warning or a siren type sound.
Is it like that?
2) both BT and DF players are always connected to amplifier
To join outputs together you need "separation" resistors, that´s what those 10k ones are for.They will somewhat attenuate signal, but usually that´s not a problem.
When you push a button, somehow (not my field) Arduino mutes BT and enables DF
Is that what you want?
Yes, this is exactly what I want. I can do it with Arduino codes, but I wanted to learn how to make audio connections. I'll try using a 10k resistor now, thank you.
thanks everyone it worked but my fear is:
bluetooth off while dfplayer is running
dfplayer is off when bluetooth is on.
I combined the dfplayer and bluetooth outputs and connected them to the amp. Will the voltage coming out of one damage the other instead of the amp?
bluetooth off while dfplayer is running
dfplayer is off when bluetooth is on.
I combined the dfplayer and bluetooth outputs and connected them to the amp. Will the voltage coming out of one damage the other instead of the amp?
No, and THAT is the purpose of the isolation/separation/mixing resistors.
You are right that straight connecting output-to-output must not be done, but the resistors keep them apart and safe.
You are right that straight connecting output-to-output must not be done, but the resistors keep them apart and safe.
It worked and it didn't damage anything.
That's what we call 'empirical' data, AKA 'suck it and see'.
Or, as the ancient Romans used to say, 'QED'.
Glad you got it working.
That's what we call 'empirical' data, AKA 'suck it and see'.
Or, as the ancient Romans used to say, 'QED'.
Glad you got it working.