Universal bluetooth receiver do it yourself from an old bluetooth headset with an 3.5mm jack audio jack.
I think it’s no secret to anyone how a bluetooth headset works.
This article describes how to make a more universal device for wirelessly playing music files while maintaining the functions of the headset.
This homemade It will be useful for drivers (to make and receive calls through the standard audio system), to listen to music through an AUX connection or on headphones.
We will need:
1. bluetooth headset
2. Audio jack 3.5mm jack
3. A pair of wires
4. Shrink
5. Super glue
From the tools:
1. Soldering iron
Step 1.
We need a 3.5mm jack audio jack. You can get it from old equipment, as I did, or buy it at any radio store.
Step 2
We carefully remove the speaker from the headset and unsolder the wiring from it.
Step 3
We place our audio jack 3.5mm jack most conveniently and solder the wiring according to the pinout and glue it with super glue.
Pinout
Since the headset produces a mono signal (on one channel), we will combine the right and left channels into one, soldering them together with wiring. The photo shows that two red wiring are soldered to one channel. One goes to the headset, and the second connects the right and left channels. Now the mono signal from the headset will be sent to both channels. If this is not done, then when listening to the headphones, only one side will play, the same with any audio system.
Step 4
Now we put on a heat shrink, to isolate the contacts and the aesthetics of the appearance.
This is the end of the upgrade. We connect headphones or AUX cable and check.
The built-in battery allows you to work not for long. For this, take care of the additional power supply of the receiver for its continuous operation.
Video of step-by-step assembly and operation of the device for familiarization.