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Car Kit anyone?


Guest batute

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I'm working on a hardware for the tanger which will alow me to use it on my car as a true car kit.

This will be a true car kit with the profile automatically switches to car when the phone is plugged into it and it will charge the phone at the same time.

Currently it is still under development and have tested the MP3 playing capabilites of this phone when connected to my home theater system.

Problem encountered includes no muting capability for the car stereo. The phone's hardware does not provide any control what so ever for this, probably some software and a bit of hardware will cicumvent this limitation.

The work are still a bit jumbled as can be seen on the pix (taken by my smartphone) I'm still on the prototype testing part.

IMAGE_00012.jpg

IMAGE_00012.jpg

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hehehe...not really a solderless one, but can still be called a breadboard.

Got the concept working now....All I have to do is to finalyze the design and make look pleasing and easy to install.

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Guest Geeklord

I know a guy who claims he's re-wired a tape adaptor that connects to the bottom of the SAP. It works pretty much like the ones formerly used for portable CD-players so you can play cds on (old) car stereos without built-in CD players. He "claims" that you can use the SAP's mp3 playlist. and when a call comes in, everything else is muted and you get your call in full stereo (or how great your car speaker system is). From what I've gathered, he'll do you the service for around PhP 5,000. Again, these are all claims that I haven't had the priviledge of seeing (and believing).

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Guest dinoalbert

hey thats nice! I have also tried using the tape adaptor with my SAP just by using a 2.5-3.5 mm jack converter but I didnt know if calls can also be heard from the car stereo...well its possible but what about the mic function? pwede rin siguro yung speakerphone function...but 5,ooo? :shock:

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5,000 bucks?!! too much for a cassette adaptor. The one I'm making was from the ground up and charges the phone at the same time....

A nokia car kit for the 6210 cost USD175, but it is branded and looks very nice and have the works.

I'll finish up the design this week end and try to install it on my car after wards. Will send more photos as I go along.

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Tadaaahhh.....finally got the crap working yesterday!!!!

Problems encountered:

1. RFI when calling - easilly solved :)

2. Alternator whine - can also be solved next weekend

Got most of the subsystems working, the phone charges when connected and made my first call. Works great!!

I connected to my car sound system and the sound was not as expected. The SPV I think needs some wave shaping on the audio out. I'll work on that afterwards.

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@batute,

after finishing the car kit, can you come up with a stand-alone spare battery charger for rodnav? :)

thanks grift.

@batute

nice idea for a car kit. hope you can make it works and well.

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  • 2 weeks later...

Geeklord, I suspect the mute capability you mentioned in your post isn't to do with muting the stereo. It follows right after playing a playlist on your phone, and the phones media player already mutes when a call is made, so that's all it'll be. Won't mute radio/cd/cassettee on an existing system, as any full car kit should do. I wonder if my in-dash mp3 player in the car lets you pause instead of mute, that would be cool.

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Finally got the project all in one piece. Have to let go of the charging feature because of some thermal problems. I might got into switch mode power supply to get rid of the thermal issues.

A PCB design is at the works.

Next thing to look for will be good craddle for the SPV.

Below are some of the pics for the working prototype, the craddle that can be seen on the dash is a for my Nokia 6210 car kit. I'm looking for a craddle similar to that for the SPV. The project measures 2.5" by 3.5" and most of the materials are sourced locally.

project.jpg

internal.jpg

boxed.jpg

board.jpg

cradle.jpg

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