DIY Bluetooth Speaker With Tin Can & Cardboard – Simple Home Project

Making your own Bluetooth speaker is a fun and low-cost project. With just a tin can, cardboard, and a small Bluetooth module, you can build a working speaker at home. This project is perfect for students, hobbyists, and DIY electronics lovers.

Materials Needed

• Empty tin can

• Cardboard sheet

• 3W or 5W speaker

• Bluetooth amplifier module (TPA3110, PAM8403, or any mini module)

• 18650 battery or 5V power bank

• Switch

• Hot glue gun

• Soldering iron & wire

• Small wires

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Steps to Make the Speaker

1. Prepare the Tin Can
   Clean the tin can and make a circular hole in front for the speaker.

2. Fix the Speaker
   Place the speaker inside the hole and secure it with hot glue.

3. Make the Back Cover (Cardboard)
   Cut a round cardboard piece to fit the back of the can.
   This will hold the circuit and battery.

4. Install the Bluetooth Module
   Solder the speaker wires to the module.
   Connect power (battery or USB cable).

5. Add the Switch
   Connect a simple ON/OFF switch for power control.

6. Organize Everything
   Fix the battery and module inside the can.
   Close the back with cardboard and glue.

7. Test & Enjoy
   Turn it on, connect your phone via Bluetooth, and play your music!

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Why This DIY Project is Fun

• Low-cost materials

• Easy to make at home

• Good for learning basic electronics

• Great sound from a recycled tin can

• Perfect school or hobby project