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Reply to thread: working and principle of 2 digit door bell counter

Username: Post Subject: Post Icon: no icon Your Message: [quote="saju" pid='51293' dateline='1502923485'] A doorbell is a signaling device typically placed near an entry door to a building. When a visitor presses a button the bell rings inside the building, alerting the occupant to the presence of the visitor. Although the first doorbells were mechanical, activated by pulling a cord, modern doorbells are electric they are actuated by an electric switch. [/quote] Post Options: Disable Smilies: disable smilies from showing in this post. Thread Subscription: Specify the type of notification and thread subscription you'd like to have to this thread. (Registered users only) Do not subscribe to this thread Subscribe without receiving any notification of new replies Subscribe and receive email notification of new replies Subscribe and receive PM notification of new replies

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Posted by saju - 08-16-2017, 10:44 PM

A doorbell is a signaling device typically placed near an entry door to a building. When a visitor presses a button the bell rings inside the building, alerting the occupant to the presence of the visitor. Although the first doorbells were mechanical, activated by pulling a cord, modern doorbells are electric they are actuated by an electric switch.