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NFC chip for M3
- Thread starter martinot
- Start date
some people have melted the official key card to get the chip out and make rings etc. I believe there's a thread out there about a paid service
It would be great if we could get a generic wearable NFC or BT device b/c everything gets the "Tesla tax" otherwise
The tesla keycard is $25... that is the cheapest official key of any car I have ever seen:
Tesla | Shop Search
Not sure many people would consider a $25 key being "tesla tax"
sduck
Mr. Duck
You can buy nfc chips and antenna assemblies for about a quarter easily enough. The equipment and skill to program them to work with the tesla will cost quite a bit more.
I meant the rings and other 3rd party chip solutions. I've seen cheap NFC/BT type rings but don't believe they'll work with Tesla?
I'm in the same market as OP and would be happy with non apple watch solutions too. I believe my S3 frontier has NFC and BT but Tesla only works with phone BT? I agree that their screen programming to add keys is the best compared to my Highlander that needs dealer/locksmith intervention.
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Oh yeah for sure. I get you now, and totally agree that many third party solutions include a "tesla tax" (or in regular terms, an upcharge because the person selling the item feels that tesla owners have tons of money so can afford it).
I dont have any experience with getting the NFC chip out of those cards, but as @vickh said, I think there are some threads here describing the process.
I believe it was acetone to dissolve the plastic and then retrieving the chip/antenna.
When the "ring" solutions started appearing, I was thinking about an AppleWatch wrist strap as well, but it seems the chip and its antenna needs to be placed just so. I'm not so sure, embedding the chip and antenna in the wrist strap will work reliably. Even the "ring" solutions can be finicky. Cnick is one of the first rings I read about. The rings are about $100+, which includes the cost of the $25 keycard.
If you have an AppleWatch with cellular, you can just get a 3rd-party app that will allow you to unlock and drive your "3". It's not instant, but it works if you have a cell connection. EV Watch, WatchforTesla, Stats, AutoMate, lots of 3rd party apps, some cheap as $1 and some expensive.
no (so both the car and the watch have to be in an area with a cellular connection).
I believe the phone works with low emissions bluetooth, and also in conjunction with the official tesla app to authenticate. Since tesla does not offer the tesla app on a watch, there is no current way for a smart watch to authenticate with the tesla app and low emissions bluetooth. If tesla decided to ever offer the official tesla app on a watch, or enable some other authentication method on the watch, then it would work without a cellular connection.
Until that time, a person would need to do a work around by either taking the chips out of an official keycard and building something (which many have done) or use the equivalent of the "remote unlock from the app" feature that many third party apps are using to unlock the door, but that requires both devices have an access to the cellular connection.
thanks that explains it! \
I will try out the RFID official keycard to ring solution. I lost my wedding ring so this might make the wife happy too.
Any good links? It's okay if I have to touch the ring to car, by the pillar camera apparently is the best place
I have never looked into it myself (if the question was for me), because it (the "making a ring out of a keycard chip thing) was never something I was interested in. My phone works for me, and although I have an apple watch, I have not missed not having a way to open the car with my watch.
I know there are solutions but havent investigated it myself, sorry.
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