The Absolute Simplest Bluetooth Speaker Project
Hi everyone - there’s a new Bluetooth module out that features an integrated amplifier so I thought I would give you an updated project for (what I think is) the simplest DIY Bluetooth Speaker Project ever.
There is no soldering required for this version - you only need to cut + strip some wires.
This version does away with certain nice-to-haves like USB-charging, or fancy power control modules. Instead, it’s powered directly by AA batteries and the power is controlled by the integrated switch on the AA battery holder.
Bill of Materials
- 2x [ CE08483 ] Enclosed Speaker - 8 Ohm, 5 Watt
- 1x [ DFR0675-EN ] Stereo Bluetooth Amplifier Board
- 1x [ CE09695 ] 4x AA Battery box (JST-PH, Switch)
- 4x [ CE04629 ] AA Battery
How to Construct
Prepare the Battery Box
Cut the connector off the cable, and strip the wires. Strip a fair bit of insulation off so you can double the wire back over itself and twist it to bulk it up a bit.
Connect the Battery Holder to the Bluetooth amp
There are terminal labels on the underside of the Bluetooth amp. Connect the red wire to POWER + and the black wire to POWER -
Connect the Speakers
Strip the ends of the speaker wires and connect each speaker to SPKR1 and SPKR2 respectively.
Double Check
Double check all your connections before proceeding!
Power-On
Make sure the battery holder switch is set to the OFF position
Load the AA batteries into the holder
Double check the orientation of the AA batteries
Switch the power ON
Connect via Bluetooth
Open your phone’s Bluetooth settings and connect to new device XY-P40W
Play some tunes!
Demo video (downloads .zip file, you will need to extract the file to play the video).
Here’s a demo video where I’m playing some music and demonstrating the Play/Pause button. When I power the Bluetooth Amp off and then back on, the Bluetooth reconnects. Nice!
The control shuttle left/right actually skips to the previous/next song - it’s not volume control! Volume is controlled by the phone in this case instance.
