how hard is it to do this?

[NiceGuysFinishLast]

So, hypothetically speaking, could you get MY hands on one of these corby keypads? And give me tips as to wiring/programming? And how much $$ are we talking? Cuz I think it sounds like a fun idea...

[MrDan]

So, hypothetically speaking, could you get MY hands on one of these corby keypads? And give me tips as to wiring/programming? And how much $$ are we talking? Cuz I think it sounds like a fun idea...

ditto

[Chuck]

NGFL - Egaeus already pointed out that you don't want to use the RFID key to enable the starter because someone can push start your machine and drive it away.  (If I was a duck I'd say if you were paying attention... )  Anywho, assuming you have some kind of switch that momentarily closes (easiest would be with a magnetic switch in a secret location, but an RFID key device that closes a contact in the presence of an RFID key would work the same.  I wouldn't know where to find one of those, but they operate all the doors in my office).  The magic is replacing the ignition with a "latching relay."  A latching relay requires an electric current to open or to close, but will remain in the state it's left in without input.  So your RFID key or magnet makes the relay switch to the on position (which is equivalent to turning your mechanical ignition key on), and some other button somewhere has to provide a signal to turn the relay off.  (This could probably be wired into the existing kill switch, but I'm not sure.)

[Egaeus]

I was thinking about this, and while I'm not intimately familiar with the wiring on the GS, surely there's a way to tell if the engine is running, such as alternator output.  Anyway, if you know the engine state, then it's a simple matter of implementing the logic for:

if (running or (not running and RFID present))
    ignition on
else
    ignition off

It's a simple truth table. 

running  RFID  ignition
    0          0       0
    0          1       1
    1          X       1

Which comes out to:

ignition = running OR RFID

Implementing the RFID part will be what's difficult.

[Kasumi]

Just to make this simpilar, is this what you mean chuck?

Like you would put your key in the ignition, and turn it to on, you can now start ur bike thru the normal method press starter, bike jumps into life.

With the RFID what your basically wanting is you get in range of the bike and effectivly the key is turned, now you can start the bike thru the starter switch, it jumps into life. But u need to be there with the rfid key all the time, as soon as you move out of range its like the key is turned off. Also wen ur on the bike n want to turn the engine off, you either kill it with the kill switch, at which point the engine would die. now ur on the bike the ignition is on but no engine. soon as you move out of the way ignition goes off.

It is relativly simple, you just need the turning of the key to be turned into a switch operated by the rfid, everything else could stay the same.

The problem comes though when you think about practicality. What do you do about the steering lock? that would be hard to operate via the rfid key, you would have to turn the handlebars to the point where they would lock then have the key to (in terms of the mechanical key) turn ignition off and then lock it. that would be a problem. other problems include your ignition will always be on while your in range, that means lights will be on, so you will always have to turn them off before you get off the bike. etc... seems like the key is just an easier option to me.

[Egaeus]

It is relativly simple, you just need the turning of the key to be turned into a switch operated by the rfid, everything else could stay the same.

The problem that we had talked about before was that if the RFID tag lost communication, it would turn off the bike, probably while you're riding.  You have to take the engine state into account. 

I thought about the lighting right after I posted.  Depending on how the kill switch works, the lighting could probably be connected to that instead of to the ignition switch.

The fork lock, if desired, would be tricky to add.  A solenoid system would work, but it would be a pain to get it right. 

It would be much easier to design this system from scratch instead of trying to retrofit it.  However, I doubt that anyone is really going to go through the trouble of implementing it.  I'd rather spend a few seconds fishing out a key than spend weeks or months of spare time working out an RFID system.  If my bike is so decrepit that the ignition switch doesn't work, I'd put in a toggle switch and not worry about the fork lock, since it wouldn't be a primary target for theft, being a POS and all.

[MrDan]

other problems include your ignition will always be on while your in range, that means lights will be on, so you will always have to turn them off before you get off the bike. etc... seems like the key is just an easier option to me.

This could be addressed by the headlight interrupt idea discussed in another thread.

[NiceGuysFinishLast]

Ahh.. see, nobody in their right mind would want to retrofit something like this. But I'm a tinkerer with lots of free time. And far from being in my right mind..

[Egaeus]

Ahh.. see, nobody in their right mind would want to retrofit something like this. But I'm a tinkerer with lots of free time. And far from being in my right mind..

Umm....aren't you like an EE student at GT?  How do you have free time?

[Chuck]

Kasumi - Yes, basically.  Except in my vision, once the RFID igintion is turned on, it stays on, & must be manually turned off.  Preferably, it turns off when you hit the engine kill switch, or lower the kickstand, so you wouldn't accidentaly leave it on all the time.  Sensing the state of the engine is another way, but I imagine it to be harder.  But hey, this whole plan is pretty hard already.

[NiceGuysFinishLast]

Ahh.. see, nobody in their right mind would want to retrofit something like this. But I'm a tinkerer with lots of free time. And far from being in my right mind..

Umm....aren't you like an EE student at GT?  How do you have free time?

I was CompE at GT. Changing majors and taking a semester off. So basically I'm working, and then I have free time. No homework. Yay.

[l3uddha]

I'll buy you a beer some day to prove I'm not a duck, I promise.

you hurt my feelings too!

...umm I like Sam Adams BTW....


since you guys are gonna ditch the stock key; anyone mind telling me how you're gonna get into the undertail?? Seems silly to do all this & still have to lug that huge key around.

Look at it this way: you ride your bike to the strip club. Bouncer says no cameras alowd, not even camera-phones.

If: no key -> you leave. possibly with a hard-on from all the excitement;
    ELSE: phone goes into undertail & you momentarily feel stupid for installing and FRID (or anything else for that matter) and still have to carry the key around.

It's a simple truth table:

Key           RFID            Boobies

   0               0                   0
   1               0                   1
   0               1                   0
   1               1                   1           

   
which comes out to : Key = Boobies

Implementing the Boobies part will be what's difficult...

[mach1]

use somethin gelse to open the seat maybe a button or a switch of somesort. i dunno but i do like boobies.

[NiceGuysFinishLast]

Oddly enough, retrofitting the lock for the sideplastics would be fairly easy, methinks. Just change it to a pull handle instead of the twisting motion. Right now, it's a moot point, because I don't have tail plastics, due to the wreck bending the subframe and mounting points.

[mach1]

a pull switch would work or a push botton would work or you can do it like a car and add a button on the bars or somwhere and when you push it the seat pops open kinda like a trunk but thats alot of work or maybe not

[NiceGuysFinishLast]

Hmm... push button wouldn't be a bad idea, I could paint it the same color as the plastics (found a spraypaint that matches exactly).. hell, if I really wanted to get fancy, I could bondo it into the plastics so that it was indistinguishable from the surrounding plastic. Dunno if I wanna go that fancy though. Also, not sure how to make a push button pull on the cable.

[mach1]

im sure it can be done with some thought anything can be doen if you put your mind to it.   oh waith you can use a remote with somekinda acuater

[NiceGuysFinishLast]

Ehh, even though the RFID is fancy, I don't wanna get too fancy with the tail lock. The more complicated something is, the higher the chance of failure.

[mach1]

sp true so true i guess you can just use some bungy chord to hold the seat down 

[Egaeus]

you ride your bike to the strip club....

For me personally, that won't be a problem. Oh, and was there a joke somewhere?