Hello,
First, I would like to mention that I am new to the forum and I'm somehow of a newbie when it comes to electronics.
I have a little project that I need help with. I've looked online and on this forum but I'm just not sure what the part I'm looking for is called and what exactly I need.
I am basically trying to achieve this:
http://forums.vwvortex.com/showthre...Pod-Input-to-OEM-Head-Unit-via-Tape-Deck-Hack
But instead of simply connecting an aux cable, I would like to connect a bluetooth headphones circuit I have laying around. It is not the aux part I'm having troubles with.
In addition to just simply solder the aux, I would like to hook the prev. and next buttons to the native track changer.
I looked up the chip sheet (http://www.ic72.com/pdf_file/t/176656.pdf) and to my understanding, it is PIN 3 that I have to hook into. Again, according to my understanding, PIN 3 has 0.7V when no buttons are pressed.
However, when the previous button is pressed, it should drop between 0-0.5V and when the forward button is pressed, it should be slightly over 1V.
What I'm basically looking for is a chip(?) (PNP??) which is able to convert the signal I receive, into two outputs (prev & next).
Uploaded with ImageShack.us
Is there such a thing?
Furthermore, I would probably need a "timer" which could activate a switch for say.. 5 seconds once it gets power. This would Power on the bluetooth headset when the car is "On" and the timer receive power.
Thanks in advance,
Andrei
First, I would like to mention that I am new to the forum and I'm somehow of a newbie when it comes to electronics.
I have a little project that I need help with. I've looked online and on this forum but I'm just not sure what the part I'm looking for is called and what exactly I need.
I am basically trying to achieve this:
http://forums.vwvortex.com/showthre...Pod-Input-to-OEM-Head-Unit-via-Tape-Deck-Hack
But instead of simply connecting an aux cable, I would like to connect a bluetooth headphones circuit I have laying around. It is not the aux part I'm having troubles with.
In addition to just simply solder the aux, I would like to hook the prev. and next buttons to the native track changer.
I looked up the chip sheet (http://www.ic72.com/pdf_file/t/176656.pdf) and to my understanding, it is PIN 3 that I have to hook into. Again, according to my understanding, PIN 3 has 0.7V when no buttons are pressed.
However, when the previous button is pressed, it should drop between 0-0.5V and when the forward button is pressed, it should be slightly over 1V.
What I'm basically looking for is a chip(?) (PNP??) which is able to convert the signal I receive, into two outputs (prev & next).
Uploaded with ImageShack.us
Is there such a thing?
Furthermore, I would probably need a "timer" which could activate a switch for say.. 5 seconds once it gets power. This would Power on the bluetooth headset when the car is "On" and the timer receive power.
Thanks in advance,
Andrei