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Forget Intelligent Key, This is what we need...

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Old 09-12-2007, 08:22 PM
  #16  
gurneyeagle
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Originally Posted by terrycs
So let me see ... you hand the valet guy your watch to go park your Aston Martin...
AWESOME rims terrycs.
Old 09-12-2007, 08:36 PM
  #17  
Callaway
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Originally Posted by nemoid
well, here it is...

in the first pic you can see the fob open.

the upside-down black T is the RFID. the battery is the attached to the back.

the second pic you can see the 4 surface mount buttons... the two chips up top are most likely microcontrollers.

third pic is the antenna for the RFID.
The question is, does the RFID need to powered? Is the watch battery for the keyless entry and panic buttons or powers the entire thing including the RFID chip.
Old 09-12-2007, 09:08 PM
  #18  
SilkeG
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Generally, an RFID tag doesn't need a power source, it's the reader that uses power.

EDIT: Sorry was thinking of the passive type. Active and semi-passive may actually use a power source.

Last edited by SilkeG; 09-12-2007 at 09:13 PM.
Old 09-12-2007, 09:47 PM
  #19  
nemoid
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Originally Posted by Callaway
The question is, does the RFID need to powered? Is the watch battery for the keyless entry and panic buttons or powers the entire thing including the RFID chip.
I will play around with it. I'll be out of town till Sunday, so don't expect anything before then.

I am gonna assume it needs some type of power. I'd also assume that there is some type of rolling code that comes along with the RFID which is processed through that microcontroller.

I'm 99% sure you need that battery lol
Old 09-12-2007, 09:59 PM
  #20  
peterbanks
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Can you just take the disassembled fob ( RFID part without the battery ) out to the car and see if it will unlock, etc?
Old 09-13-2007, 12:22 AM
  #21  
terrycs
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You took one apart? Those things go for around $50 on ebay ... plus there is a dealer charge to pair them to your car. You could have made yourself a good chunk of money on it!

Originally Posted by nemoid
well, here it is...

in the first pic you can see the fob open.

the upside-down black T is the RFID. the battery is the attached to the back.

the second pic you can see the 4 surface mount buttons... the two chips up top are most likely microcontrollers.

third pic is the antenna for the RFID.
Old 09-13-2007, 08:11 AM
  #22  
nemoid
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Originally Posted by peterbanks
Can you just take the disassembled fob ( RFID part without the battery ) out to the car and see if it will unlock, etc?
I'll do it this weekend if nobody gets to it first.

Taking it apart is pretty easy... you just pop out the key underneath and stick a small flat head in the back and twist it... it'll pop up little bit and then you can work around the rest of the fob. shouldn't take more than a minute to get the whole thing open.

*note: I didn't test the key after I put it back together, so I don't know if this will erase the RAM and disable your fob. I don't see why it would, but just letting you guys know.

Terry, make money off of what? I'm confused lol
Old 09-13-2007, 09:10 PM
  #23  
miccon
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is the watch waterproof....? or they just don't know how to swim so they could care less
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