ACCESSORIES CAR : safe your cars with mobile phone / handphone
This product just working by mobile phone / handphone. So, you can make this instrument and can pair in your car by yourself. This instrument will working if a car lost stealed, owner can check where position at that time. Owner enough send massage to this instrument with their handphone / mobile phone and than, instrument receive massage from owner and send back giving information about position the car after lost stealed.
You can make this unit/ instrument, in the first you must have a mobil phone type GSM 900/1800. you mustn’t buy new handphone / mobil phone but you can using a second mobil phone your having.
So, before setting unit into the car, you must make the sirkuit electronic for suppling mobil phone can stand-by for long time.
How make sirkuit electronic for supply ?
The sirkuit work with IC driver 7805 and follow down resistor 33 ohm and give zener dioda 3,6 volt for limiting voltage. Ampere can powerfull we using transistor NPN D 313 can use other tipe TIP 31C or TIP 41C. give a little heatsink for this transistor. Input voltage connect into battery on the car and give a fuse 2 A for protection. Output voltage 3.6 volt can you connect to line mobil phone battery.
The sirkuit electronic power supply can you case on a box that the handphone / mobile phone enough insert in the box.
Last step, insert simcard your choose into mobil phone and ask to your Operator service provider, how setting its can resend report massageand give location / position mobil phone near BTS (Base Transmiter Station)
Please try this unis may be can help you had problem with your car.
