Make Your Own Simple & Cheap Portable Bluetooth Speaker

In this project I will show you how to build a simple portable bluetooth speaker that can play its tunes up to 30 hours continuously. Most of the used components can be found for only 22$ in total which makes this a pretty low budget project. Let's get started!

Step 1: Watch the Video!

The video gives you a good overview on how to create a portable bluetooth speaker. In the next steps though I will present you additional information so that you can create this project easily as well.

Step 2: Order Your Parts!

Here you can find a parts list with example seller for your convenience (affiliate links):

Aliexpress:

2x Li-Ion Battery: https://s.click.aliexpress.com/e/_dY2Dqpb

1x Bluetooth board: https://s.click.aliexpress.com/e/_dTODXzJ

1x SPDT Switch: https://s.click.aliexpress.com/e/_dZRb7VJ

1x TP4056 board: https://s.click.aliexpress.com/e/_dWSqvYz

1x Micro USB Breakout: https://s.click.aliexpress.com/e/_dTNAJCV

1x MT3608 Boost Converter: https://s.click.aliexpress.com/e/_d75DA4v

1x RGB LED: https://s.click.aliexpress.com/e/_dTvyTJb

Ebay:

2x Li-Ion Battery: -

1x Bluetooth board: http://rover.ebay.com/rover/1/711-53200-19255-0/1?...

1x SPDT Switch: http://rover.ebay.com/rover/1/711-53200-19255-0/1?...

1x TP4056 board: http://rover.ebay.com/rover/1/711-53200-19255-0/1?...

1x Micro USB Breakout: http://rover.ebay.com/rover/1/711-53200-19255-0/1?...

1x MT3608 Boost Converter: http://rover.ebay.com/rover/1/711-53200-19255-0/1?...

1x RGB LED: http://rover.ebay.com/rover/1/711-53200-19255-0/1?...

Amazon.de:

2x Li-Ion Battery: http://amzn.to/2eUzhDP

1x Bluetooth board: http://amzn.to/2eUto9y

1x SPDT Switch: http://amzn.to/2eUxqyK

1x TP4056 board: http://amzn.to/2eUvMNO

1x Micro USB Breakout: http://amzn.to/2eUtzSu

1x MT3608 Boost Converter: http://amzn.to/2eUzFCh

1x RGB LED: http://amzn.to/2eUB5gb

Step 3: Build Your Enclosure!

Here you can find the .dxf file that I created with the LibreCAD software or you can simply use the attached .pdf files to print out the templates that I created.

Step 4: Do the Wiring!

The wiring is rather simple to begin with, but here you can find a couple of pictures on how the insides of my bluetooth speaker look like. Feel free to use them as a reference.

Step 5: Success!

You did it! You just created your own portable Bluetooth Speaker!

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

Comments

[Miguel_F]

What is the purpose of the boost converter board?

[greez2k5]

A circuit diagram would be nice ;)

[martik777]

I cannot get any of the MT3608's to work. They immediately overheat and start smoking when input 3VDC applied even when turning down 20 turns CCW beforehand.

[Rudraksh_Mishra_2019]

what are the specs of your speakers?

[PhilipB111]

What is your voltage going into the boost converter? My outputs are measuring 20 mV and Vin are at 700 mV.

[Andy32]

Great project !! I am currently doing it so thnak you for this great tutorial. I had just a problem for soldering the battery together (dangerous, no spot welding etc...) so I buy this case holder. I hope it will be fine, but at least it's not dangerous ^^

Thank you again ! It's my first DIY project and it's thanks to you =)

[EvensonE]

Don’t worry about that one thing to say is to say a lot different . Te Bote returns is a good game to play for free.

[JosD12]

hi,

I am using pam8403 module to drive two 4ohm 3watt speakers using a 2200mAh Li-ion battery but when I increase the volume around 75 to 80% on my phone the sound starts to cut off (speaker cones move in and out extremely during the time),and when I increase the volume further it becomes worse and sounds p p p pp ppp p ppp p p... I cannot understand what is the problem, could it be because there is no enough current ?,I also tried a 2 amp 5v dc input from a fast charger of my phone but same is the case

please help me with this.

[StephenAllen1215]

Speakers are way too small/watts too small.try a bigger watt speaker or goto a 8 ohm spear.

[Zecatfish937]

I belive the problem may be your speakers, I saw a guide that suggested having speakers with double the wattage rating of your amp.

[ScottG214]

Anyone know what types of speakers were used here? (watts etc.) Because those dont look like 3W speakers and the board has 3W speaker ports.

[StephenAllen1215]

Which ever speaker board you desire to use you should use a speaker that can handle twice the amount of power I.e. 3w board should use a 6w speaker. The trick to having a great sounding speaker is mostly its enclosure and the amount of power going into it. I'm not too hip on home sound systems but I do know car stereos 1998 I had a home made setup in a Isuzu Rodeo consisting of four 1200w duel voice coil subs and using only one 800w amp per set of subs(2 amps used) I took second place for loudest car stereo in Hillsborough county. So by using less amp than the speaker was asking for I produced a heart stopping sound that most people could not make using the same size amp to speaker. I hope this helps!!

[Nerdy'sD]

Hi,

Im doing a final project for my engineering class in high school and i was wondering if you could help explain this more and go into to more detail like a step by step thing. And also what tools are needed for this project.

Thanks so much

[andyg140]

has anybody had any problems with the battery charger board

the ones i have seem to trip the overcharge when switching on when using the batteries but it is ok when i use a 5v mobile phone charger

[WietseB1]

I got a problem as well. When I turn on the speakers with the power connected they work. When I disconnect the power, they keep working. But when I turn on the speakers with no power connected the voltage is much lower and the bluetooth board does not turn on.

[KarthikK113]

How to connect rgb to tp4056?

[andyg140]

Can you charge up the rechargeable batteries with an external solar power pack like the ones for charging phones

[Kanak Shilledar RM]

From where did you get the datasheets

[DavidT567]

I made this but when I increase the volume about 90% to 100% the speaker stops working and the light on the Bluetooth board get off and the music stops.what can be the problem?Pls help me

[klem1]

Hello,

great project.

i have question.

Can i use TP4056 to charge 2 batteries bellow in parallel with mobile charger?

http://www.ebay.com/itm/18650-4200mAh-Li-ion-Recha...

Thanks