Introduction: Make Your Own Low Budget Bluetooth Music System
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 (affiliate links):
Bluetooth music receiver:
Ebay:http://rover.ebay.com/rover/1/711-53200-19255-0/1?...
Amazon.de:http://amzn.to/1nVWXIa
Aliexpress :https://s.click.aliexpress.com/e/_dTUwNM7
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 (affiliate links):
Premade Amp:
Ebay:http://rover.ebay.com/rover/1/711-53200-19255-0/1?...
Aliexpress: https://s.click.aliexpress.com/e/_d8hzM8J
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 (affiliate links):
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
Aliexpress:
1xLM386: https://s.click.aliexpress.com/e/_dUCCV03
1x470µF Capacitor: https://s.click.aliexpress.com/e/_d7IrB2B
1x2200µF Capacitor: https://s.click.aliexpress.com/e/_dWrNxN9
1x100nF Capacitor: https://s.click.aliexpress.com/e/_d8TSem7
1xIC Socket: https://s.click.aliexpress.com/e/_dU34FV5
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
Aliexpress:
1xNE5534: https://s.click.aliexpress.com/e/_dVZPIjN
3x100nF Capacitor, 1x22nF Capacitor: https://s.click.aliexpress.com/e/_d8TSem7
2x470µF Capacitor, 1x2200µF Capacitor: https://s.click.aliexpress.com/e/_d7IrB2Bhttps://s.click.aliexpress.com/e/_dWrNxN9
1xBC637 NPN Transistor: https://s.click.aliexpress.com/e/_dVb5i6F
1xBC640 PNP Transistor: https://s.click.aliexpress.com/e/_dUX37mf
3x100k Resistor, 1x10k Resistor, 1x100 Resistor, 1x47 Resistor: https://s.click.aliexpress.com/e/_dSgNnQR
1xIC Socket:https://s.click.aliexpress.com/e/_dU34FV5
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.