In this project, I will be demonstrating how to create a portable Bluetooth speaker that can be used for a long amount of time and can be made using a fairly low budget, low amount of skill and a small number of tools.

Step 1: Collect the Required Equipment and Parts

In order to be able to create the speaker without any interruptions. A note about the Bluetooth board is to use something of higher quality and ensure to treat it with care since I encountered an issue where the Bluetooth would cut out after a minute or so of use. all the parts and equipment that need to be available are:

- Soldering Iron

- Solder metal

- Screwdriver

- Nails

- Wires

- Hole saw attachments

- 2 Li-Ion Battery

- 1 Bluetooth board

- 1 SPDT Switch

- 1 TP4056 board

- 1 Micro USB Breakout

- 1 MT3608 Boost Converter

- 1 RGB LED

- 2 2.5 watt speakers

- Drill

Step 2: Solder the Two Batteries Together for a Higher Capacity

In order to have a higher capacity and subsequently a higher play time, the two batteries need to be soldered using a wire

1. Scratch off the isolation layer off the negative and positive terminals of both batteries

2. Solder some aluminum on the negative terminals of both batteries to create an adherent

3. Solder some aluminum on the positive terminals of both batteries to create an adherent point

4. Solder both negative terminals using a soldering iron and a wire

5. Solder both positive terminals using a soldering iron and a wire

6. Use some tape to hold the two batteries together

Step 3: Connect the TP 4056 Board to the Battery

Solder the B+ pin to the positive terminal of the batteries using a wire
Solder the B- pin to the negative terminal of the batteries using a wire

Step 4: Connect the USB Breakout to the TPU 4056

In order to have a better positioning for charging, solder the USB breakout directly to the TPU 4056 board directly using a fairly lengthed piece of wire

Step 5: Connect the Board to the on Off Switch

Using one wire, connect the positive output pin to the middle pin of the on-off switch in order to be able to turn the speaker on and off

Step 6: Connect the Power Switch to the Boost Converter

Using one wire, solder the boost converter to one of the pins on the power switch

Step 7: Connect the Boost Converter to the TPU 4056 Board

Directly solder the negative inputs of the Boost converter to the negative outputs of the TPU 4056 board

Step 8: Connect the Boost Converter to the Bluetooth Board

Solder the outputs of the boost converter to the 5v folds and ground pins of the Bluetooth board that can be found on the bottom side of the Bluetooth board.

Step 9: Connect the 2 Speakers to the Bluetooth Board

Connect the channels of the board to both speakers using a soldering iron and some wire

Step 10: Create the Enclosure

After having created the actual speaker, it is now time to create an enclosure that will contain the speaker. I personally used a fairly old birdhouse that has been repurposed since it has not been used for its purpose and was hanging unused and fitted all the parts into it. It was very good since I encountered battery issues where the battery had to be substituted with a power bank since the batteries weren't providing power for some reason. This is entirely up to you, however, things to consider when deciding for a case for the speaker or creating the case for the speakers are:

The holes for the drivers that need to be done by measuring the circumfrence of the drivers and create the holes using a hole saw attachment
A hole for the power switch
A hole for the micro USB charge port