Modular Bluetooth Speaker System

At its core is the main speaker - everything is contained in the main box including the Lithium Ion batteries, recharging circuit, bluetooth receiver and amp. You'll also find both a standard USB and USB C port to re-charge your other devices.

This is where it gets cool though: Assemble the second 'slave' speaker for a louder system and it’s connected as simply as sitting it on-top. Magnets hold it in place and the Pogo pins form the electrical connection!

Get a kit of parts from Etsy (and support the channel): [https://www.etsy.com/uk/listing/1492616468/](https://www.etsy.com/uk/listing/1492616468/)

List of items used in this project and where to find them:

BMS 3S 60A: [https://geni.us/BMC-3S-60A](https://geni.us/BMC-3S-60A)
CC/CV Buck Converter XL4015 (x1): [https://geni.us/XL4015-CC-CV](https://geni.us/XL4015-CC-CV)
Pogo Pins (2mm spring head & 5.5mm shaft length) (x2): [https://geni.us/PogoPins75-55](https://geni.us/PogoPins75-55)
3 Cell 18650 Battery Holder (x1): [https://geni.us/3s-18650-Holder](https://geni.us/3s-18650-Holder)
Quality 18650 Lithium Ion Batteries from a reputable source (x3)
Bluetooth Amp: [https://geni.us/Bluetooth-AMP](https://geni.us/Bluetooth-AMP)
Voltmeter / USB PSU (x1): [https://geni.us/Voltmeter-with-USB](https://geni.us/Voltmeter-with-USB)
DC Barrel Connector (x1): [https://geni.us/HighAmpDCBarrel](https://geni.us/HighAmpDCBarrel)
Power Switch (x1): [https://geni.us/Power-Switch](https://geni.us/Power-Switch) ■ 4” Full Range Speakers - They don’t have to be yellow! :) (x1 or 2): [https://geni.us/4-Inch-Speakers](https://geni.us/4-Inch-Speakers)
Power supply:
Magnets (12x3mm): [https://geni.us/12x3mmMagnets](https://geni.us/12x3mmMagnets)
Bolts (M4x5mm): [https://geni.us/M4-Bolts](https://geni.us/M4-Bolts)
Filament: [https://www.3djake.uk](https://www.3djake.uk)
PCB: [https://www.pcbway.com/project/shareproject/3D_Printable_Modular_Bluetooth_Speaker_System_3df5b9d9.html](https://www.pcbway.com/project/shareproject/3D_Printable_Modular_Bluetooth_Speaker_System_3df5b9d9.html) ■ Disco Light (optional): [https://geni.us/USB-Disco-Light](https://geni.us/USB-Disco-Light)

These are some of my favourite tools I use and can recommend:

Battery-powered glue gun: [http://geni.us/BoschBatteryGlueGun](http://geni.us/BoschBatteryGlueGun)
Bosch Bit Driver: [https://geni.us/Bosch-Screwdriver](https://geni.us/Bosch-Screwdriver)

I use a Prusa MK3S for my projects and highly recommend both it and the Prusa Mini. If I inspired you to take up 3D printing please consider purchasing a printer via this link:

[http://shop.prusa3d.com/#a_aid=diymachines](http://shop.prusa3d.com/#a_aid=diymachines)

Prusa support my channel when you use that link at no cost to yourself. :

========== Wiring diagrams, FAQ etc can be found here:

[https://www.diymachines.co.uk/bluetooth-speaker-with-a-surprising-trick](https://www.diymachines.co.uk/bluetooth-speaker-with-a-surprising-trick)

==========

SAY THANKS: Provide continual and dependable support through Patreon:
[https://www.patreon.com/diymachines](https://www.patreon.com/diymachines)

Or join this channel on Youtube Memberships:
[https://www.youtube.com/channel/UC3jc4X-kEq-dEDYhQ8QoYnQ/join](https://www.youtube.com/channel/UC3jc4X-kEq-dEDYhQ8QoYnQ/join)

Buy me a coffee to say thanks:
[https://ko-fi.com/diymachines](https://ko-fi.com/diymachines)

SUBSCRIBE:

========== List of camera and lighting equipment I use:

Sony A7 III: [https://geni.us/Sony-Alpha7-III](https://geni.us/Sony-Alpha7-III)
Tamron 28-75mm F2.8 RXD A036SF
Lens for Sony-FE : [https://geni.us/TamronRXD-28-75mm](https://geni.us/TamronRXD-28-75mm)
Aputure Amaran HR672C: [https://geni.us/AputureAmaranHR672C](https://geni.us/AputureAmaranHR672C)
Aputure MC: [https://geni.us/FAPGL](https://geni.us/FAPGL)
RØDE VideoMic Pro+: [https://geni.us/RodeVideoMic-ProPlus](https://geni.us/RodeVideoMic-ProPlus)
Blue Snowball iCE: [https://geni.us/BlueSnowball-iCE](https://geni.us/BlueSnowball-iCE)
Philips Hue Lightstrip Plus: [https://geni.us/PhilipsHue-LightStrip](https://geni.us/PhilipsHue-LightStrip)

Disclaimer: This video is shared for demonstration purposes only.

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