First
let us know what Relay board is used for. It is a computer board with an array of
relays and switches which provides input and output terminals and is designed
to control the voltage supply. The technology provides independently
programmable, real-time control for each of several onboard relay channels. They are utilized in
various applications like controlling lights,
motors, and other electronic devices in industrial and commercial applications
There are many different
types of Relay boards products used nowadays.
But we will focus on two types today.
Ethernet Relay Board- Which helps in making it easy for
computers of all types to control relays and monitor analog inputs. It also
allows you to turn relays on or off, constantly flash relays, control them for duration
of time and in groups using a cross-platform compatible Ethernet interface.
DPDT Relay Board- DPDT acronym stands for double-pole
double-throw relay which is an electromagnetic device applied for separating
two circuits electrically and connect them magnetically and to interface an
electronic circuit which works at a low voltage to an electrical circuit which
works at a high voltage.
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