ModelLing Electronic Door Bell with a Counter for Visitors by Proteus Programme

Abstract

Electronic bells do not contain electromagnet or metal panels for the issuance of the sound. But using an integrated electronic circuits, and when you press the doorbell button is sent an electronic signal to turn on a musical tone stored in the memory bell. Electronic door bell is a device that works to calculate the number of visitors, be it by clicking on it. This device is equipped with counter numbers shows through its screen. A program that works with this bell calls (Proteus).