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A very simple and light, answer to bike thieves. :
www.youtube.com/watch?v=CbogMB2wCm4
Lets see how to put it together:
www.youtube.com/watch?v=CbogMB2wCm4
Lets see how to put it together:
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Signing UpStep 1Material list and schematic
This is the schematic.
As you can see the materials needed are:
1 On/Off switch, (preferably a round key switch witch can fit in the handlebar end of your bike.
1 mercury switch
1 2.5K resistor
1 10K resistor
1 4.7μF capacitor
1 BD139 transistor, (although any NPN transistor will fit)
Also - (not shown here), 1 12V battery, (the ones used in car alarm transmitters)
As you can see the materials needed are:
1 On/Off switch, (preferably a round key switch witch can fit in the handlebar end of your bike.
1 mercury switch
1 2.5K resistor
1 10K resistor
1 4.7μF capacitor
1 BD139 transistor, (although any NPN transistor will fit)
Also - (not shown here), 1 12V battery, (the ones used in car alarm transmitters)
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Jun 25, 2011. 1:49 PMfirefletcher
says:
Quality! If installed correctly, then no one would see this at all! Would love to see a video of it in action. Does the alarm keep ringing or does it stop if the thief puts the bike back?
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