circuit connexion of potentiometer and external speaker

hi please i want to change the sound volume using potentiometer and a speaker with arduino.can you help me to do the connection circuit .thx in advance

kind regards

Top Replies

shabaz over 2 years ago in reply to naimlion +3

Hi, There's just two or three wires on the potentiometer. I strongly suggest you just wire it up (in any way you think fit, you can google this), and see what happens. You'll learn more from that experience…
JWx over 2 years ago in reply to phoenixcomm +2

In the end it turned out that it was software task - potentiometer was supposed to drive software based volume control, which the author finally achieved...
shabaz over 2 years ago in reply to naimlion +1

Hi, You're not bothering me, this is genuinely the best advice I can think of. It's the best way to learn, just to try it, because in this particular instance, you're very unlikely to damage anything…

naimlion over 2 years ago in reply to phoenixcomm

so if it´s difficult to use this speaker ok no problem forget it .can we use microbit speaker and potentiometer to change sound volume

regards
Cancel
Vote Up -1 Vote Down

Sign in to reply

Cancel
naimlion over 2 years ago in reply to naimlion

here my code in makecode

makecode.microbit.org/_iPWXs1d3o0v4
Cancel
Vote Up 0 Vote Down

Sign in to reply

Cancel
naimlion over 2 years ago in reply to JWx

thx good question ,my answer is yes .i connected pin sig to p1 of microbit and gnd to gnd and vcc to 5v and i desativate microbit speaker and all works good
Cancel
Vote Up 0 Vote Down

Sign in to reply

Cancel
naimlion over 2 years ago in reply to naimlion

we can also use an other speaker with 2 pins only :gnd to gnd of microbit and the other pin to p1 for exp and i desactivate the microbit speaker and all works well.

the issue appears when i want to use potentiometer to change sound volume that´s it
Cancel
Vote Up 0 Vote Down

Sign in to reply

Cancel
JWx over 2 years ago in reply to naimlion

ok - so take potentiometer of value between 1 and 10 kOhm [1kOhm or 2.2kOhm or 4.7kOhm or 10kOhm) and connect it (assuming center contact is connected to moving contact inside)

- one edge connector to microbit output

- another edge connector to gnd

- central (regulated) connector to speaker module's input

and do not forget to set blue potentiometer on speaker module to max volume (maybe it is set to zero so there is no sound?)
Cancel
Vote Up 0 Vote Down

Sign in to reply

Cancel
naimlion over 2 years ago in reply to phoenixcomm

please pin NC in my speaker do you know what??

because i don´t use it but when i worked without potentiometer and i don´t connect this pin all works well and i listen music
Cancel
Vote Up 0 Vote Down

Sign in to reply

Cancel
JWx over 2 years ago in reply to JWx

like this (but without capacitor) - as I have written previously - exactly like potentiometer that is at module's input (you can checkk schematics on the page you have provided):
Cancel
Vote Up 0 Vote Down

Sign in to reply

Cancel
naimlion over 2 years ago in reply to JWx

i telled you that the speaker works good so the blue knob is not set to zero yes or no.

please can you send me a circuit picture to describe connections

please i have trouble in : where i connect out pin of potentiometer?

where i connect sig pin of speaker and also vcc pin of speaker

yours trully
Cancel
Vote Up 0 Vote Down

Sign in to reply

Cancel
JWx over 2 years ago in reply to phoenixcomm

it has turned out that this is not a "speaker" but LM386 module with speaker (and builtin pot for volume regulation)...
Cancel
Vote Up 0 Vote Down

Sign in to reply

Cancel
naimlion over 2 years ago in reply to JWx

so i understand that i connect out pin of potentiometer to sig pin of speaker?

yes? or to vcc pin of speaker that´s exactly what i search
Cancel
Vote Up 0 Vote Down

Sign in to reply

Cancel