Instructables
Picture of DIY Bluetooth Speaker
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Meet the PartyBar™! Make a wireless speaker, loud enough to fill an entire room! With a budget less than $15, you can have your own Bluetooth speakers made from scratch materials! It's slick, stylish, descent and most of all it's compact and fits in your pocket. This is a great weekend projects for enthusiasts and audiophiles.

It's small but packs quite a punch. With the help of "35mm Neodymium Drivers" the PartyBar™ delivers a solid stereo sound. It's equipped with a 1000mAh Li-ion battery meant to last for 9 straight hours, replacing it with a 2,400 LiPo will result to a staggering 22 hours of continuous playback!

Are those ready made speakers?
A lot of people thought that this was a ready made product, well it's not. It's actually made from recycled materials such as broken speakers, radios & old modules. The project box came from my eyeglass's container :D



Techie Description:
The PartyBar™ is equipped with two outstanding Neodymium Speaker drivers. Neodymium itself is a rare-earth metal. Magnets made from neodymium are light and very powerful, making the speakers more compact and gives a higher clarity rate.

Of course good speakers must be powered by good amplifiers thanks to Nsiway's NS4263 dual 3W SMD chip, the PartyBar™ delivers an excellent audio, good enough to compete in today's market. It has a class AB amplifier with a THD rating of 0.1%. A Class AB amplifier delivers fully symmetrical wave amplification, in short the audio given off by this amplifier is pure and clear.

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Specifications:
- 1,000 mAh Rechargeable Li-ion Battery (9hrs Playback)
- Dual 3W (4ohms) 35mm Neodymium Drivers
- High Efficiency 2x3W Amplifier (0.1%THD)
- 15 meter Standard Bluetooth Range
- 3.5mm Auxiliary Ready
- Mini USB Charge Plug



 
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plal75 made it!4 months ago

wanted to make something like this for long..thanks ASCAS!!

Have used parts from the link, used an acrylic perfume box as case :)

There is a small problem though..there is a background noise, quite audible when song is playing at low volume/ silence in the song..Please help!!!!

BT1.jpgBT2.jpgBT3.jpg

hello,

It is possible to have a shema? I don't understand the connections with the modules you advice In dx.com

The capacitors 104 have it mate sense ? where they must trendy ?

Thank

hello,

It is possible to have a shema? I don't understand the connections with the modules you advice In dx.com

The capacitors 104 have it mate sense ? where they must trendy ?

Thank

ASCAS (author)  plal754 months ago

That's an awesome build. Have you tried connecting a 10uF Capacitor to both lines channels?

plal75 ASCAS4 months ago

Nope :( ...have used a 104 (0.1uF) as you had in your pic. Should I try a 10uF instead at each channel's input?

Thanks for your response, appreciate it :)

TheRedFez9 months ago

You show 104 capacitors in the pictures, but do not list them in the wire diagram, I'm assuming they go on the power leeds?

ASCAS (author)  TheRedFez9 months ago

Both 104 go to each channel's input. It acts as a simple low pass filter.

great idea using a glasses container!

oka16 made it!yesterday
cool speaker
temp_1433706926.jpg

The amp requires 3.6v - 5.5v (4.55v typical) power supply and the Bluetooth requires 1.7v - 1.9v (1.8v typical) power supply 5.3v min to 7.4v max (6.35v typical) which means this system requires TWO 3.7v batteries, not one as in this design. I can see why this build has had problems. It's important not to forget the basics of power supply. You can build the best unit and if you don't have the correct power supply it will not work properly.

hello,

It is possible to have a shema? I don't understand the connections with the modules you advice In dx.com

The capacitors 104 have it mate sense ? where they must trendy ?

Thank

mark.mailhot2 months ago

now correct me if im wrong but i think the switch gets wired in like so and the bluetooth and AUX just get kind of soldered in junction with each other. {sorry for the lack of color)

schematic.jpg

hi, Mark.mailhot,

Thank you for the diagram. As i don't know a lot in electronics.

Can you explain me wher do you connect the speaker +/- on the bluetooth module ?

The R1 and R2 on your diagram are the one from the module (TXD and Key)

Thank you

JL

For the +/- you have to look it up via Google or the manufacturers site as it is usually different. Maybe post a picture of what module your using

Hi,

Thank you Mark, i have googled it and find that there are 36 pin on the BT module (green chip on the picture) the audio chould be in 9/10 for L&R (i presume also ground) but not sure yet as i'm using a HC-05 (as i wanted to change the device name from an arduino - in AT mode and it works).

And i thougt that i could connect the speaker directly to one of the 6 big pin.

Here is a picture.

Do you have any idea on how to connect to the amp (audio in)

Thank you.

JLuc

image.jpg
Hi JLuc sorry to say but as far as I'm aware the hc-05 is not for audio

what amp module are you using?

well as i look back i realize that i miss labeled R1 and R2. the R was supposed to be "resister" but i notice that the line filter is a disk capacitor, so it should be C1 C2. which are on the + audio lines left and right. the blue tooth module may only have one - output.

hi,

I wanted to use a PAM8403 amp like the one of this picture.

(I don't understand where do you put the 2 capacotors and what value).

Thank again.

image.jpg

you put the capacitors between the blue tooth +audio out (one for left and one for right) for the size of capacitor should be a 10.4uF disk capacitor

Thank you, but here is my problem.

I don't find the bluetooth +audio out, is it the same as PCM Out

And for the - it's ground ?

I found this illustation, it' the BT module only

Thank you

JL

image.jpg

so after some research I find that I don't think this is a Bluetooth audio module their for I don't see any audio out in any information.

hi Mark.

Oups that's not a good news.

I took this module as i could change the name and password with the AT mode using an Arduino.

I should have look the ausio connection before buying it.

But in this tutorial pictures the bluetooth module look very similar...

Than you

ASCAS (author)  mark.mailhot2 months ago

Oh, that's what I did it although I forgot to illustrate the switch on the diagram.

jean-lucG ASCAS1 month ago

hi Ascas,

Can you tell me wich bluetooth module did you use ?

Thank you

JL

Now you have a lot more experience at electronics then I do, could I replace the amp and speakers with a FM transmitter? Or would it now work well?

hello,

It is possible to have a shema? I don't understand the connections with the modules you advice In dx.com

The capacitors 104 have it mate sense ? where they must trendy ?

Thank

hello,

It is possible to have a shema? I don't understand the connections with the modules you advice In dx.com

The capacitors 104 have it mate sense ? where they must trendy ?

Thank

ebolson25 days ago
Can anyone tell me how to wire in a volume control and if I should
No need just use the volume on the ipod
JamesF1123 days ago

i want to make this speaker using a 8w and a 16w speaker would I need a another amplifier?

DobbZW23 days ago

Would you sell a Speaker to me, I dont have the tools and I cant find parts.I will give you postage cost and construction cost, if you want me I might give you more.

ebolson23 days ago

if you glue the entire case together what do you do when you need to replace a part or fix it? would it work if I used a project box from radio shack and glued one panel on and just screwed the other one into place?

ebolson23 days ago

could someone put a better picture of the wiring, the wires get mixed up where the top and bottom halves meet.

pierremethod2 months ago

I'm worried about soldering to a battery...what are some precautions I should take?

I've been doing a lot of soldering to batteries lately, and the main thing to watch out for is not to get the battery too hot ie. don't have the soldering iron up against it for too long. Other than that it's pretty simple :)

thanks

jettyish24 days ago
Where did u got the wires from
pcrotts1 year ago

I love this tutorial! My roommate and I are going to try this out.
Will this bluetooth module work?

http://dx.com/p/stereo-audio-bluetooth-speaker-module-blue-149203

ebolson pcrotts25 days ago

did you guys notice that it was sold out

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