Make Your Own Low Budget Bluetooth Music System

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Introduction: Make Your Own Low Budget Bluetooth Music System

About: Awesome Electronics Tutorials, Projects and How To´s

In this project I will show you how I "fused" a dirt cheap bluetooth music receiver with an old speaker of mine. The main focus will be on designing a low cost audio amplifier circuit around the LM386 and the NE5534. The bluetooth receiver costs 4,5$ and the audio amp 3$. So you can call this low budget.

Step 1: Watch the Video!

The video gives you all the info you need to build this project. But in the next steps I will present you my part list and my schematics to make things easier.

Step 2: Get the Bluetooth Receiver And/or Your Premade Amp!

No matter which circuit you want to build, you will need at least the receiver. Here is where I got mine from:

Bluetooth music receiver:

Ebay:http://rover.ebay.com/rover/1/711-53200-19255-0/1?...

Amazon.de:http://amzn.to/1nVWXIa

Amazon.com:http://amzn.to/1nVXAl9

And if you do not want to build the amp circuit by yourself, you can always buy a premade kit. Here is a nice one:

Premade Amp:

Ebay:http://rover.ebay.com/rover/1/711-53200-19255-0/1?...

Amazon.com:http://amzn.to/1tnfQog

Amazon.de:http://amzn.to/1q77lZn

Step 3: Order Your Parts for the Circuit!

Now it is time to order the parts for your circuit. Here is a list of what you will need and where you can buy it:

LM386 Circuit:

Ebay:

1xLM386:http://rover.ebay.com/rover/1/711-53200-19255-0/1?...

1x470µF Capacitor:http://rover.ebay.com/rover/1/711-53200-19255-0/1?...

1x2200µF Capacitor:http://rover.ebay.com/rover/1/711-53200-19255-0/1?...

1x100nF Capacitor:http://rover.ebay.com/rover/1/711-53200-19255-0/1?...

1xIC Socket: http://rover.ebay.com/rover/1/711-53200-19255-0/1?...

Amazon.de:

1xLM386:http://amzn.to/1tHIbFB

1x470µF Capacitor:http://amzn.to/1nW0tlX

1x2200µF (1000µF also works) Capacitor:http://amzn.to/1nW0tlX

1x100nF Capacitor:http://amzn.to/1G29rnq

1xIC Socket:http://amzn.to/1tHInou

Amazon.com:

1xLM386:http://amzn.to/1to7jS3

1x470µF Capacitor:http://amzn.to/109LhXc

1x2200µF Capacitor:http://amzn.to/109LhXc

1x100nF Capacitor:http://amzn.to/1q8dftp

1xIC Socket:http://amzn.to/107M7UA

NE5534 Circuit:

Ebay:

1xNE5534:http://rover.ebay.com/rover/1/711-53200-19255-0/1?...

3x100nF Capacitor, 1x22nF Capacitor:http://rover.ebay.com/rover/1/711-53200-19255-0/1?...

2x470µF Capacitor, 1x2200µF Capacitor:http://rover.ebay.com/rover/1/711-53200-19255-0/1?...

1xBC637 NPN Transistor:http://rover.ebay.com/rover/1/711-53200-19255-0/1?...

1xBC640 PNP Transistor:http://rover.ebay.com/rover/1/711-53200-19255-0/1?...

3x100k Resistor, 1x10k Resistor, 1x100 Resistor, 1x47 Resistor:http://rover.ebay.com/rover/1/711-53200-19255-0/1?...

1xIC Socket:http://rover.ebay.com/rover/1/711-53200-19255-0/1?...

1xSilvered copper wire:http://rover.ebay.com/rover/1/711-53200-19255-0/1?...

Amazon.de:

1xNE5534: -

3x100nF Capacitor, 1x22nF Capacitor:http://amzn.to/1G29rnq

2x470µF Capacitor, 1x2200µF Capacitor:http://amzn.to/1nW0tlX

1xBC637 NPN Transistor: -

1xBC640 PNP Transistor: -

3x100k Resistor, 1x10k Resistor, 1x100 Resistor, 1x47 Resistor:http://amzn.to/1tp60Rh

1xIC Socket:http://amzn.to/1tHInou

1xSilvered copper wire:http://amzn.to/1E8p1fy

Amazon.com:

1xNE5534:http://amzn.to/1E8p4YT

3x100nF Capacitor, 1x22nF Capacitor:http://amzn.to/1q8dftp

2x470µF Capacitor, 1x2200µF Capacitor:http://amzn.to/109LhXc

1xBC637 NPN Transistor: -

1xBC640 PNP Transistor: -

3x100k Resistor, 1x10k Resistor, 1x100 Resistor, 1x47 Resistor:http://amzn.to/1sQMyZV

1xIC Socket:http://amzn.to/107M7UA

1xSilvered copper wire: -

Step 4: Build Your Circuit!

Here you can find the schematic for the LM386 and the NE5534. You can also use the board design that I made. I used this as well and it works perfectly fine.

Step 5: Success!

You did it. Now you can enjoy the awesome music of your homemade audio amp .
Feel free to check out my Youtube channel for more awesome projects:

http://www.youtube.com/user/greatscottlab

You can also follow me on Facebook, Twitter and Google+ for news about upcoming projects and behind the scenes information.

https://twitter.com/GreatScottLab

https://www.facebook.com/greatscottlab

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    46 Comments

    can i use a 10 watt speaker plz replay me i am doing this experiment as my project

    2 replies

    how about 15w speaker?

    What is the maximum power output this ne5534 ic amp schematic????

    what are the specification of speakers

    Hey i really want to build this but i have a problem i need my speaker to be loud so i wonder is it loud sorry my english is not very good

    1 reply

    By the way i am going to use the lm5534 circuit

    I made Lm386 circuit and it worked but has too much noise.. So I started making Ne5534 circuit but Can't get it to work.... I changed all the components. I think there is some problem in the output stage..

    hi, i have made a bluetooth speaker but the problem is that i get distortions because it is connected to the same powersource. the speaker i made is supposed to be portable and it would be inpractible to use 2 different batteries. is there any way i coud solve this problem? thanks in advance

    6 replies

    I have got the same problem did you fix it

    I bought a simple ground loop isolator and that fixed the problem.

    would something like this work http://www.ebay.com/itm/Mpow-Ground-Loop-Noise-Isolator-Car-Audio-System-Home-Stereo-With-3-5mm-Cable-/152095915411?hash=item23699f7d93:g:yEsAAOSwXSJXPVsY ?

    I think it will work but I am not 100% sure, I used a similar ground loop isolator like this one from e-bay: http://tinyurl.com/jgnffk7

    where i can get the 12v power supply?

    Which is the program you used to make the layouts for the pcbs?