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USB Flash Drive Ignition Key

  #1  
Old 08-04-2011, 01:06 PM
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Default USB Flash Drive Ignition Key

Hey everyone, I'm new to the forum and I wanted to post a little invention I made for my F4i. My bike was stolen early this year and was gone for a few months, I got it back and it was all taken apart. It made me mad at how easy it was for the thieves to take her, they just hammered out the ignition and turned it with a screwdriver. The anti-theft resistors/diode built into the ignition didn't deter them at all because the ignition was still intact. Eventually the diode broke inside the ignition and they ditched the bike and it was recovered. I fix computers for a living so I got the idea for this security measure. I got the resistor and diode (anti-theft) that normally is inside the ignition, and wired them inside of a usb flash drive. I then took a USB Receptacle and mounted it to my handlebars, wiring the receptacle to the ignition wires. I wont' give specifics because it might help out a thief but I wanted to show a pic. It works flawlessly, I can plug in my USB Flash drive and crank the bike up then put it back in my pocket. Without the flash drive the fuel pump wont prime and the engine won't get spark. This pic doesn't show it mounted but just shows the setup. Thanks

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  #2  
Old 08-04-2011, 01:20 PM
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So can someone just plug any usb into it and drive away?
 
  #3  
Old 08-04-2011, 01:27 PM
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Originally Posted by kazspeed View Post
So can someone just plug any usb into it and drive away?
No, I disassembled the flash drive and wired a zener diode and resistor inside of it. So when current passes through it, the correct voltage gets sent to the ECU and allows the bike to start. If someone tried to just jump the wires at the usb mount, it would not work because if the ECU sees 12 volts it knows it's being hotwired and won't start.
 
  #4  
Old 08-04-2011, 01:31 PM
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Slick
 
  #5  
Old 08-04-2011, 01:41 PM
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Also, the flash drive is still fully functional on my computer
 
  #6  
Old 08-04-2011, 01:44 PM
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Nice job
 
  #7  
Old 08-04-2011, 02:07 PM
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thats freaking awesome! I want more pictures ASAP!!! lol
 
  #8  
Old 08-04-2011, 02:37 PM
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Thanks Here's another pic of when I first got it hooked up, so there's wires out. It was so cool plugging it in and hearing the high pitched fuel pump kick on. right now I have the USB Plug-in mounted flush on the left side of the handle-bars. I think I need a cooler looking flash drive :P My bikes at a friends shop so when I go back in today or tomorrow I'll have updated pics, It looks much cooler mounted though.
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  #9  
Old 08-04-2011, 05:49 PM
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That's awesome!
 
  #10  
Old 08-04-2011, 06:43 PM
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Good idea, and nice implementation. Nice work!
 

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