How to modify an ordinary speaker to a Bluetooth speaker, don t weld. Don t dismantle the speaker, t

It's very simple,Now there is a Bluetooth module,And it's very cheap,Own to the local large electronic market,There are,But the Bluetooth speaker is not good,The sound quality is easy to be interfered with,Measure it well, and the Bluetooth headset output can be connected to the speaker there,Because I don't know your speaker,If it's passive, it may not be pushed。

The problem: 1. This modification is actually very simple, but if you don't know about electronics, take it to repair the electrical appliances, and you can get it within 30 minutes. In addition, is the Bluetooth headset on one side of the ear or the stereo on the neck?

If it is the former, you need to disassemble the headphones when leading, and the sound quality of the mono speaker will not be good or buy a stereo Bluetooth headset.

2. Remove the lithium battery in the Bluetooth. Find an insulated transformer. After the bridge finishing filter, the voltage is stabilized with 7805.

Then connect 2 4007 diodes in series,At this time, the voltage is already,Just enough for Bluetooth to use,If there is no transformer, you can use the one that comes with the speaker。 Connect the power button to two more wires and drill a hole in the speaker's housing. Install a button.

The process isn't that complicated. However, the Bluetooth headset voltage cannot be exceeded. Otherwise, it will burn out.

in between.

Buy a set of Bluetooth receivers on Oak.

Install a Bluetooth audio receiver.

Install a Bluetooth audio receiver, within 100 pieces.

Buy another Bluetooth speaker.

There are old-fashioned speakers in the house, as long as there is an audio input interface, it is easy to modify to Bluetooth speakers (I have modified several), the specific operation method is as follows:

<>3. According to the logo on the Bluetooth board, solder several power cords with an electric soldering iron.

4. After the power supply is soldered, (there is an audio output socket for headphones on the Bluetooth board), use a headphone plug to turn the plug (usually a lotus socket) that matches the audio input socket of the power amplifier, and then turn on the micro switch.

TB a lot of Bluetooth receivers or Bluetooth receiver boards,Connect its output to the signal input of your active speaker,That's it。

The old-fashioned audio is changed to a Bluetooth speaker, which is actually very simple, as long as you add a Bluetooth receiving board. Here's how:

<>3. Use a headphone plug audio cable to connect to the audio input of the power amplifier.

The so-called Bluetooth speaker is nothing more than a speaker with an amplifier and a Bluetooth audio module. The main thing is that you can use Bluetooth to transmit audio signals and decode. There is no problem with the old-fashioned speaker with power amplifier at home, and it is no problem to spend a little money to modify it into a modern and popular Bluetooth speaker.

Method 1, you go to the Internet to buy a Bluetooth audio module (don't bring an amplifier, it's more than 10 yuan), with a power supply, get a shell, and connect it in front of the speaker you have before OK. This one saves money but requires you to have a little hands-on ability. Method 2, you go to the Internet to find a finished Bluetooth speaker adapter (60-70 yuan), so that your old-fashioned speaker with power amplifier becomes a wireless Bluetooth speaker in seconds.

Hello, if it helps you, can you please give a like? I wish you all the best, thank you.

1. Buy a Bluetooth audio receiving module, transform the ordinary speaker, if you have a good understanding of electronic circuits, and have a certain hands-on ability, you can directly consider buying a Bluetooth audio receiving module, and install the Bluetooth audio receiving module into the speaker.

2、Connect the audio input interface of the speaker with the AUX audio cable and the audio interface of the Bluetooth module,Use the built-in or external power adapter to supply power to the Bluetooth module,Ordinary speakers can become Bluetooth speakers。

4. If you don't have hands-on ability, or have high requirements for the sound quality of the audio, you can consider buying a Bluetooth audio receiver.

5. Bluetooth audio receiver, using professional headphone amplifier chip, supporting Bluetooth transmission technology, built-in battery, just use the AUX audio cable to connect the audio input interface of the ordinary speaker with the audio interface of the Bluetooth audio receiver, without additional power supply, you can transform into a Bluetooth speaker.

Easy to use and simple to wiring. Because the power amplifier power is slightly smaller (5 watts digital power amplifier), it is suitable for horns with higher sensitivity, and the impedance is preferably 4 ohms, so that the power can be larger. The board in the picture above has a wide voltage, which can be used from 4 to 40V, and can also be used with idle mobile phone lithium batteries to achieve portable functions.

Only professionals can add Bluetooth circuits to the original.

**There is a Bluetooth receiver module on it, you can install it yourself.