Bluetooth Speaker

Hello everyone

This is a bluetooth speaker I made from a kit, I used soldering for most of the speaker.

Supplies Needed:

1. Soldering Iron (preferably with adjustable temperature)
2. Soldering Iron Stand (to safely hold the hot iron)
3. Soldering Mat (Heat-resistant mat to protect your desk/workbench)
4. Magnifying glass (To see small solder joints more clearly)
5. Flux (helps the solder flow better and improves joint quality)
6. Brass Wool (For cleaning the tip of the iron)
7. Helping hand (to hold wires or flux)
8. Wire Cutters (For trimming wire ends neatly)
9. Safety Glasses (to protect your eyes)
10. Screwdriver: Phillips Head (if you need to open speaker casing or terminals)
11. Fume Extractor or fan (To keep solder fumes away and improve ventilation)

Step 1:

First, carefully open the kit and lay out all the parts on a clean table or desk. Check everything against the parts list in the manual to make sure nothing is missing or damaged. It helps to group similar parts together so you can easily find them later. Organizing everything before you start will save time and prevent confusion while building. Take a moment to look over each part and get familiar with what you have. Keep the instruction manual nearby for quick reference. This preparation step makes the whole assembly to keep the process smoother and much less frustrating.

Step 2:

Set up your workspace in a well-lit area where you can work comfortably. Make sure you have good ventilation because soldering produces fumes that you don’t want to breathe in. Place a heat-resistant mat or surface on your desk to protect it from your hot soldering iron. Gather all the tools you’ll need, like your soldering iron, solder, wire strippers, and safety glasses. Having everything organized and within reach will help you work more efficiently. Double-check that your soldering iron is heated to the right temperature before starting. A clean workspace is better, its also a better place to work in so all of your supplies is not jumbled up.

Step 3:

Use wire strippers to carefully remove about half an inch of insulation from the ends of the wires you’ll be soldering. Be gentle so you don’t cut any of the wire strands inside. After stripping the wires, twist the exposed strands together so they don’t fray. Next, heat the wire ends with the soldering iron and apply a little solder to them; this is called “tinning.” Tinning makes it easier to connect wires and helps create stronger solder joints. Be careful not to heat the wires too long to avoid damaging them. Properly prepared wires help prevent bad connections later on.

Step 4:

Find the speaker terminals on the circuit board they’re usually labeled with plus (+) and minus (–) signs. Match the speaker wires to the correct terminals, making sure the polarity is right. Hold the tinned wire against the terminal, heat it with the soldering iron, and add a small amount of solder to join them together. Try to keep the solder joint smooth and shiny without any blobs. Avoid heating the board too long because it can damage the components. After soldering, check that no stray wire strands are touching other parts, which could cause a short circuit. Good solder joints here are important for clear sound from your speaker.

Step 5:

Look at the wiring diagram in the manual and connect the Bluetooth module wires to the correct spots on the circuit board. Make sure you match the wire colors and terminals exactly to avoid damaging the parts. Use your soldering iron to make solid, clean joints on each wire. Then, connect the battery wires to the battery terminals on the board, again paying close attention to polarity. Double-check all the solder joints to make sure they’re secure and there aren’t any solder bridges. A solid connection here is essential so the speaker powers on and can communicate via Bluetooth. Taking your time will help prevent mistakes.

Step 6:

After making sure all of the wires are connected to all the solder joints and the battery wires are connected to the battery terminal. You would have to take all the transparent pieces and connect all together, this part is the difficult part and you most likely need a helping hand from a friend or a classmate.

Step 7:

Once all of your wires are connected to the solder joints and double-checked and all the battery wires are connected to the battery terminal. With the cord you received with your kit, plug it up and connect in to your phone via bluetooth.