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Wednesday, May 13, 2020

DIY Music Box with 4000mA Rechargeable Battery, 2*3 Watt Speaker, Bluetooth, AUX, SD Card, USB & FM


In this post, I will share how to make a Music Box with 4000mA Rechargeable Battery, 2*3 Watt Speaker, Bluetooth, AUX, SD Card, USB & FM.

To build this I am using a 5V MP3 Encoder which has features like Bluetooth, AUX, SD Card, USB & FM, and Remote to control all the operations

MP3 Encoder Affiliate Links:
  • Amazon IND: https://amzn.to/3a0X4eT
  • Amazon USA: https://amzn.to/38RU2cN
  • Banggood: https://www.banggood.in/custlink/mKDDUEd7hY
  • AliExpress: https://s.click.aliexpress.com/e/_dWlHXUh

First, connect the power ports of the MP3 Encoder module to the DC Connector

Next, connect the Amplifier to MP3 Encoder Module, Speaker & FM Antenna.

For the Amplifier, I am using a low-cost PAM8403 amplifier which is a 3 Watt, class-D audio amplifier.

PAM8403 Amplifier Affiliate Links:
  • Amazon IND: https://amzn.to/2vXHnGF
  • Amazon USA: https://amzn.to/2SY2EJn
  • Banggood: https://www.banggood.in/custlink/vmvDkEYuR8
  • AliExpress: https://s.click.aliexpress.com/e/_d6no0HX


For speakers, I am using 2*3 Watt speakers. While connecting the speakers look for the poles on the speakers (which will be marked on the connecting pads) and connect accordingly.

3 Watt Speaker Affiliate Links: 
  • Amazon IND: https://amzn.to/2SVf4BF
  • Amazon USA: https://amzn.to/2uxaccM
  • AliExpress: https://s.click.aliexpress.com/e/_dSrMMFj

For Antenna I am using 30 Cm long Telescopic Antenna

Telescopic Antenna Affiliate Links:
  • Amazon IND: https://amzn.to/2yV1kj4
  • Amazon USA: https://amzn.to/35S8Asj

Next, I designed my case using FreeCAD which is an open course parametric 3D modeler software and then printed it using my Ender 3 3D printer-source parametric 3D modeler 
Ender 3 3D Printer -
  • Amazon US - https://amzn.to/36kClAn
  • Amazon IND - https://amzn.to/2utb7KV
  • AliExpress - http://s.click.aliexpress.com/e/_sGVzjU
  • Banggood - https://www.banggood.in/custlink/KGD3sNqq1M

Next, I added a 18650 Lithium 4000mA rechargeable battery with 5 Volt 18650 Lithium Battery Charger With Protection Module. The battery capacity gives you a backup of around 120 Minutes. You can increase the backup time by increasing the battery capacity (Parallel Battery Connection).
18650 Lithium Battery Charger With Protection Module
  • Amazon US - https://amzn.to/2urk9Z4
  • Amazon IND - https://amzn.to/2SY1GwJ
  • AliExpress - https://s.click.aliexpress.com/e/_dTOCcWD
  • Banggood - https://www.banggood.in/custlink/33GmMEYTEV
Rechargeable Battery
  • Amazon IND - https://amzn.to/3c4uevT

Next, I assembled all the parts into the case and did a final test to check if everything is working fine.

Thank You For Reading Guys !!!

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