HOW TO MAKE A VEHICLE SECURITY SYSTEM ALARM?
This is a basic electronic project on how to make a vehicle security alarm system. Below is the schematic diagram. (click the photo to enlarge)
This alarm gives a 15-20 second exit and entrance delay. After being triggered, the alarm sounds for five minuted and then shuts off. Once triggered, the sequence is automatic and not affected by subsequent opening or closing of doors.
