Question

in where the smart door bell is invented and when?​

Answer 1

Answer:

In 1831 in America by Joseph Henry

Explanation:

it was invented in 1831 but it became popular in 1913.

Answer 2

Answer:

One of the earliest smart doorbells that entered to the market is the Ring Video Doorbell which was created by entrepreneur Jamie Siminoff in 2013. Since then, several smart doorbells have been introduced to the market, another major one is Nest Hello, some of them with additional, unique features.