Introduction: Bluetooth Mod - Line Out for EXTERNAL AMPLIFIER
You Probably have a old bulky speaker or a ordinary speaker that has AUXILIARY PORT.
You want to stream to SPOTIFY OR PANDORA or watch NETFLIX with your SMARTPHONE or LAPTOP Wirelessly Without Thinking Much of Wires.
OR YOU JUST WANT TO WIRELESSLY PRANK OR SCARE YOUR FRIEND IN A ROOM W/ YOUR AMPLIFIER.
I Have a cheap solution for you.
EVERYONE LOVE MUSIC!!!
• Any Cheap Bluetooth Speaker or Earpiece - 300 PHP or 7$
• Some Wires - FREE - Salvage
• Inline 3.5mm Female Audio Socket or RCA-FREE -SALVAGE
• Soldering Iron
Step 1: Open the Enclosure
use your Screwdriver loose all the screw you see.
Step 2: Identify the Audio Output of the Bluetooth Module
All Bluetooth Speaker or earpiece has A Bluetooth Module and Amplifier Module.
SOMETIMES IT'S A STEREO TYPE BLUETOOTH MODULE LIKE Blk-MD-SPK-D BUT IT'S JUST THE SAME PROCEDURE.
you must find it's datasheet to identify Where are the trace of Audio out of the Bluetooth Module and the Audio in of the Amplifier.
Example in my case i Have a AC1526E64753 Bluetooth Module Which i couldnt Find it.
So Second option Find the Audio input of the Amplifier in my case Ltk8002 a Class ab Amplifier that has audio input in pin 4 so you need to trace it back to the BLUETOOTH MODULE to get the RAW SOUND W/O Filtered by the resistor and capacitor in Amplifier USING YOUR MULTIMETER.
Step 3: Soldering and Hot Glueing Your Wire and Audio Jack
This is when you successfully find it's trace back to IC and solder the pos+ wire and Neg- to the AUDIO OUT of Bluetooth Module.
Secure it with some Hot Glue and Heat shrink tubing.
Step 4: TEST IT!
BEFORE CLOSING IT UP CHECK IF IT WORKS PROPERLY.
Step 5: Closing It Up!!
Drill a Hole to it's enclosure use your screw or anything sharp obj to make a hole put the extended wire to and close it up.
Step 6: CONGRATULATION! IT WORKSSS!! ENJOY!!!
Plug it to your sound system AUXILIARY PORT.
ENJOY!!!! WATCHING MOVIES AND LISTENING MUSIC.
SCARE YOUR FRIEND WITH CREEPY SOUND.
PRANK YOUR FRIEND WHEN HE/SHE SLEEPING AND WAKE UP THEM WIRELESSLY.
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