Central Alarm And Anti-theft For Home or Vehicle

Central Alarm And Anti-theft For Home or Vehicle.

Description. Hardware schematic design. Outlines:.

You can use anti-theft alarm circuit to prevent burglary. It sounds an alarm when someone tries to intrude into your home or vehicle by hitting, pushing or knocking the door..

Hardware Schematic Design. Worktools on blueprint.

Diagram, schematic Description automatically generated.

The single-sided printed circuit is planned to be eventually split. The two parts are then assembled, copper faces facing each other. The transfer of the artwork depends on personal skills to obtain the best result, either with a pen, or by self-adhesive transfers or by the photo method. The plate will then be etched in a bath of iron perchloride, then carefully rinsed. It will then be necessary to drill the pellets using a drill bit Solder the single strap first then continue the wiring according to the size and fragility of the components, respecting this order: resistors, diodes, integrated circuit support, network of resistors, the resonator, the mylar capacitors, the terminal blocks, the LEDs, the control keys, the relays, the regulator on its radiator ..

Check that there are no wiring errors in the components or the printed circuit; a short-circuit can be disastrous..

Programming. Four files are available for programming the PIC 16F84 of the alarm control unit..

Setting time delays :. Pressing the «1 * key allows modification of the entry delay (5 to 60 s.)(.

Alarm monitoring:. An action on the "A" key triggers this mode. You have the time provided by the exit delay to leave the premises (L3 on, then off and L4 flashing). The anti-theft relay comes into action..