Also not knowing if anyone had messed with my bike because I was to far away to hear the alarm.
So I decided to make this alarm using an old mobile phone and a simple timer circuit.
The basic principle is if the motorbike is moved it will trigger a timer circuit,
which will send a 3 second pulse to a mobile phone, which will phone me to let me know that something has moved my bike.
This project is not just for a motorbike, It could also be altered you warn you about anything you want.
ie house, shed, car.
Step 1: Items needed
1 mobile phone car charger.
1 555 timer chip
2 relays 12 volt
some tilt vibration switches.
some resistors and capacitors
a small plug and socket. (a phono plugs is ideal)
Some electrical tools and a little electronics knowledge.
Step 2: Modifiying the phone
I removed the case and carefully removed the front panel that sits underneath the keypad. this was held in place by torx screws.
Then I wired two very fine wires to the button contacts under the digit (3) it doesnt mater to much which button you use but I used this number because its not used for my phone number and because it was close to the side of the phone so it was easier to bring the wires out.
When I had attached the 2 wires I then reassembled the phone and checked it worked ok. by shorting together the connector with a piece of wire. to make sure the phone will activate the digit 3.
Next you will have to go in to the phone menus and set up a speed dial on button 3 for your own mobile phone.
After I had done this I shorted the connector again to check the alarm phone will call my mobile.