Skip to main content

 

Interfacing RELAY with Arduino UNO

What is Relay?

Relay is an automatic switch that detects condition in circuits and causes the contacts to change their positions to close or open the circuit as required. Relays are used in many applications. When the coil of relay is energized or de-energized, its contacts are ON or Off.

In a relay we have to consider two important parameters i.e. once is the Trigger Voltage, this is the voltage required to turn on the relay that is to change the contact from Common->NC to Common->NO. Our relay here has 5V trigger voltage.

 


Comments

Post a Comment

Popular posts from this blog

Interfacing RELAY with Arduino UNO

  Interfacing RELAY with Arduino UNO What is Relay? Relay is an automatic switch that detects conditions in circuits and causes the contacts to change their positions to close or open the circuit as required. Relays are used in many applications. When the coil of the relay is energized or de-energized, its contacts are ON or Off.          In a relay, we have to consider two important parameters i.e. once is the Trigger Voltage, this is the voltage required to turn on the relay that is to change the contact from Common->NC to Common->NO. Our relay here has a 5V trigger voltage.   Let’s understand the interfacing of relay with Arduino I amusing online simulation software (Tinker cad). Tinker cad helps to interface, code, and simulate online. All the components I have used are present in the software. You can also build your own circuit. All the components have been labeled in the above Figure. The push-button is connected  to pin2 whic...
Post a Comment
Read more