GSM Alarm
GSM based motorcycle alarm based on sensing if the bike is lifted from sidestand
Short users guide
Operation:
A call will be made every time the bike is raised from sidestand after at least 3 min
- A tilt sensor senses if the bike is on sidestand or in vertical position
- If the bike is parked (put on sidestand) the device waits for 3min
- After 3min it is armed
- In this state if the bike is lifted to vertical position the device calls the programmed number
- The call starts in about 5s
- The call lasts for 50s (Don't answer the call, so it is free)
- If no event happens then after 2hours the device turns itself OFF to zero current consumption
- In this state if the bike is lifted to vertical position the device calls the programmed number
- The call starts in about 30s
Connection:
- 12V and GND from battery through a fuse
Other info:
- A prepaid SIM card is needed which is periodically filled with the appropriate amount
- The tilt sensor has to be precisely placed
- The GSM antenna must be precisely placed
- All the configuration information is hardcoded in the software
- You can leave it on all the winter, because after 2hours the current consumption is zero
- The operation status and the errors are displayed via the Atmel LED. See C code.
- The device fits into the 15mm space between the airbox and the seat
