Motorcycle alarm is one of the very important gadgets when it comes to securing your bike from all sort of crooks. It is already BER months and they are on the loose again. Alarm comes from a variety from simple up to those wireless sophisticated GSM based units. Sometimes they incorporate GPS tracking system just to monitor where the bike was after being bikenapped by those crooks, but not all can afford this kind of bike security. Motorcycle can be stolen anywhere, when parked, and or moving. The only last line of defense is having at least an immobilizer that is timed when a hidden button is switched on after the bike get stolen.
OVERVIEW
What i have in mind is to make a circuit that when the motorcycle is park, inside the compartment is a hidden switch to activate the alarm system that when the bike is move or tilted from its position, a TILT switch will then activate the circuit and timer will start counting on the desired pre adjusted time before any audible or visual indication commence. I been thinking also of fitting a way of contacting any of your android based phone but this will mean a microcontroller and an additional low tech phone as well and will only make the system more complex for starters. But for now i wanted to make it simple and yet enough to immobilize any attempt of bikenap.
Another scenario of stoling the bike is when you are moving then suddenly a gun pointed at you and to be spared is just give the bike where they just drive it, then the bike is way gone. So why not put an IMMOBILIZER circuit that when this happens, a simple push on a switch will timed the circuit and shall deactivate the ignition entirely up until they cannot start the bike ignition. In this way, they might just leave the bike nearby and allow you also to buy time to call for help..
These are those simple measure i have in mind and this article will cover how to make one and install it within your motorcycle.
PROPOSED CIRCUIT
555 timer IC is the best for this kind of application, Cheap but so powerful when it comes to timing circuit. There are lot of design all over the internet, and almost have the same configuration. In order to pick the pre adjusted time such as 10 sec , 25 sec or all the way up to 3 minutes delay, it is best to use a DIP switch rather than a trimmer.
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/ Motorcycle Immobilizer (Alarm)
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