Bluetooth speaker - recycle DIY
Just dig in, I'll make a portable Bluetooth speaker from recycled stuff and a cheapo China Bluetooth amplifier.
No other reason, than I'm a big child and wanted to. Smiles.
This is what it will end up looking like.
Ever since being a boy, I have loved pulling things, here me as a boy, making a string controlled theatre out of trashed TV.
And some weeks ago someone threw out a big modern flat screen TV, so I had to dig in, brought it up to my apartment and went bananas…
I removed the LCD and will use the screen as a big photo lamp.
But also found these small horn full range speakers inside.
They sounded surprisingly well.
That was the inspiration, or trigger if you will.
So another couple of weeks the small amplifier arrived, as well as some extra speakers for another project, so I hooked it up and it worked.
I had one of the 18650 batteries from a trashed power stick and that worked also, after running it though a circle on my quality charger.
Amp name on E-bay:
PAM8403 Lithium Battery Dual channel Audio Amplifier Board 3W+3W Bluetooth 5.0
Price was APP 5 USD - crazy a letter to abroad is 3 USD here.
For testing these speakers I made a quick cabinet and put the amp on the back.
Whooooo, amazing amount of sound from this little baby!
No it's not your house stereo, but really fine as a small bring along, or workshop speaker.
I just ordered two more of the amps, since this will be fun.
Ok back on track MaFe, this is the TV speakers.
They need a cabinet, even they are in a cabinet, but some more mass, will do them good.
So let's cut some wood.
Decided to make room in the middle for the amplifier, but never did a measure, just made the parts fit.
This was intended to be a test cabinet, as I wanted to build the final from some beautiful wood.
They look like old WHS tapes…
A little soldering.
Just for connecting the speakers to the amp board.
Let's close it up.
I'm really exited to listen and see if it's trash or treasure.
Here the wee amp with the fancy blue BT light blinking.
Warning it speaks Chinese when it starts, laughs and I have no idea what it says.
Clamps, never too many.
A Bluetooth speaker is born.
This is actually all you need.
Next us I build a small table saw, to make some covers for the speakers.
Just a little of the MDF and my Dremel motor thingy.
It's the black wood things on top of the speakers.
When I were in the supermarket I saw this one at 47 USD, so don't do this project for the money, even you will save 42 USD, do it for the fun and recycle.
But after seeing the speaker I decided to pimp mine up a wee bit.
Here rounding the edges with a router.
Gave the corners some screws, now the test box, suddenly became the project.
Then sanding and primer.
Not too particular, but medium nice…
Down in the basement og the shop, to spray a little.
Backside vent hole for the amplifier, also a possible cable hole, if I should want to run it on permanent power.
Went for dark grey hammered paint.
Ups, this will be better in second layer and it did.
For speaker grill, I had this strange thing, that sat on a trashed old people walker. I salvaged it years ago and were about to trash it several times, now I know why I did not.
Epoxy and gloves.
Yes now you can see the speaker taking form.
As you can see I also made a drawer for the amp.
Just a simple drawer, from some colourful acrylic I salved a few weeks back, in the local church's dumpster.
The hole in the front, is for using the power switch on the board, without pulling out the drawer, smiles.
Less is more… fun.
The backside with the blue light.
The speaker in standing position.
Bench mode and under the magnifying glass.
I think the blue hole became a wee sexy.
I will bring it to my allotment house, where it will be my Netflix sound box, when watching movies on the laptop.
Just rembered this recycle speaker I build some years back:
I were never happy with the fabric on the speakers, so I changed it into this, 'real' speakers fabric.
And a leather strap, to carry it around in the allotment.
Most of the time I use it standing, so it needed feet at the base also.
I'm happy now, more calm.
And the leather strap, added some warmth to the cold colors.
Hope it can be to some inspiration, perhaps even some recycle.