Bluetooth Speaker (Under Rs. 750)

Hi Guys!

This is a Blog related to making a Bluetooth Speaker. So, you will need certain materials to make it, which you can order from online stores and also get from nearby electronic shops. And Do not forget to visit our YouTube page and also Follow us not only on YouTube but also on Instructables.

You will need these items (To Buy items click on the item name)-

PAM8403 Amplifier Module ×1

3.0 Audio Bluetooth Module ×1

Speaker of 2 watt (Recommended to buy from local shop)×1

Wires (Very thin)

3.7 Volt battery ×1

TP4065 Module ×1

Jumper Wires (Optional, as an replacement of this you can use normal wire)

For better understanding refer to the Circuit Diagram above

So, for making the circuit you will need to connect-

PAM8403 Amplifier - 3.0 Bluetooth Module

L Out - L Out

R Out - R Out

Note: Do not connect the GND-GND as it can cause LOOP

Speaker - PAM8403 Amplifier

Positive Terminal(+) - L Positive of Amplifier

Negative Terminal(-) - L Negative of Amplifier

PAM8403 Amplifier - 3.0 Bluetooth Module - TP4065 Module

+5 Volt - VCC - OUT+(Positive)

GND - GND - OUT-(Negative)

3.7V Battery - TP4065 Module

Positive(+) - B+

Negative(-) - B-

For enclosure you can use any box which can hold all the items. I used the Box which was of my old speaker and attached all the thing speaker, amplifier, bluetooth module etc. in it. While attaching the speaker take care that you stick a foam in front of speaker to prevent it from damaging and also don't forget to tape all the wiring well so that it doesn't connect to each other and be safe from damaging. For charging it you will have to plug the Micro USB Cable to the TP4065 Module and charge it via mobile charger. For more detail comment on my Youtube or Instructables.

After this switch the Bluetooth of your Phone/Mobile and then you will be able to see "3.0 Bt" pair it. Now you would be ready to try out your homemade Bluetooth speaker.