ElectroMaster
Administrator
ElectroMaster submitted a new article:
Modular Burglar Alarm - This circuit features automatic Exit and Entry delays and a timed Bell Cut-off. It has provision fo
Read more about this article...
Modular Burglar Alarm - This circuit features automatic Exit and Entry delays and a timed Bell Cut-off. It has provision fo
This circuit features automatic Exit and Entry delays and a timed Bell Cut-off. It has provision for both normally-closed and normally-open contacts, and a 24-hour Personal Attack/Tamper zone. It is connected permanently to the 12-volt supply and its operation is "enabled" by opening SW1. By using the expansion modules, you can add as many zones as you require; some or all of which may be the inertia (shock) sensor type. All the green LEDs should be lighting before you open SW1. You then have...
Read more about this article...