Making a Bluetooth Speaker at Home Under $3 Dollars
Introduction
A Bluetooth speaker is a portable audio device that uses Bluetooth technology to connect wirelessly to your smartphone, tablet, or other Bluetooth-enabled devices. It allows you to play music, podcasts, or other audio content from your device without the need for physical cables.
In this article, we’ll learn how to make a cheap Bluetooth Speaker by yourself at home.
Making a Bluetooth Speaker
Creating a Bluetooth speaker from scratch is a complex DIY project that involves electronics and woodworking skills. Here’s a simplified overview of the steps involved in making a basic Bluetooth speaker.
- Bluetooth Speaker Kit: You can find DIY Bluetooth speaker kits online or at electronics stores. These kits typically include the necessary electronic components like speakers, amplifier boards, and Bluetooth modules.
- Wood or Enclosure Material: Choose a material for the speaker enclosure. Wood is a common choice due to its acoustic properties, but you can also use other materials like plastic or acrylic.
- Speaker Drivers: The kit may include speaker drivers, but you can also buy them separately if needed.
- Amplifier Board: Your kit should come with an amplifier board that powers the speakers. Make sure it’s compatible with your speakers.
- Bluetooth Module: The kit should also include a Bluetooth module for wireless connectivity.
- Power Supply: You’ll need a power supply to provide electricity to the amplifier board and other components.
- Soldering Iron and Solder: To connect electronic components.
- Drill and Bits: For making holes in the enclosure for speakers, buttons, and ports.
- Screws, Nuts, and Bolts: To assemble the enclosure.
Components Used in this Project
- 1. 4ohm 3W Speakers
- 2. PAM8403 Audio Amplifier
- 3. Bluetooth Audio Receiver Module
- 4. TP4056 Charging Module
- 5. 3.7V Lithium Battery
- 6. Switch, LED, 220R Resistor, Wires, Nut & Bolts etc.
Connection Diagram

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Conclusion
Please note that building a speaker from scratch can be a challenging project, especially if you are not experienced with electronics and woodworking. Be sure to follow safety guidelines and consult the detailed instructions provided with the components for best results.