How many pins are present in relay module?

How many pins are present in relay module?

How many pins are present in the Relay (Dual Channel) Module? Explanation: The Relay (Dual Channel) Module has 13 pins which includes the 2 Vcc’s, 2 GND’s, IN1 and IN2 which are the two input channels, 2 NC’s, 2 NO’s and 2 COM’s.

What is a relay module used for?

The relay module is a separate hardware device used for remote device switching. With it you can remotely control devices over a network or the Internet. Devices can be remotely powered on or off with commands coming from ClockWatch Enterprise delivered over a local or wide area network.

How many pins are present in SPDT relay?

i) Single Pole Single Throw (SPST) – Such relay has 4 terminal pins which consists of a pair of coil pins and a pair of pins which can be made connected or disconnected by activating or deactivating the relay. Such relay can categorized into normally open or normally closed type.

What are relay modules for?

Relay Module. The relay module is a separate hardware device used for remote device switching. With it you can remotely control devices over a network or the Internet. Devices can be remotely powered on or off with commands coming from ClockWatch Enterprise delivered over a local or wide area network.

What are the pins in a single channel relay module?

It is known as a single channel because only one relay is used and it operates on 5V. Relay module consists of six pins such as normally open pin , normally closed, common , signal, Vcc and ground pins. Signal Pin : It is used to control the relay. This pin can be active low or active high.

What are the components of a 5V relay?

5V Single-Channel Relay Module Components. 1 Relay. At the heart of the module is a 5V relay covered in blue color plastic. Maximum operating current and voltage for both AC and DC load are also 2 Output Terminal. 3 Status LED. 4 Power LED. 5 Freewheeling Diode.

How is a NC pin connected to a relay?

NC Pin : As the name of the normally close terminal suggests, it is normally connected with the COM pin and forms a closed circuit. But this normally closed connection breaks when the relay is activated by applying an active high or active low signal to the signal pin of the relay module from a microcontroller.

How is a VCC pin connected to a 5V relay?

This signal will energize the relay coil to make contact with the common terminal with the normally open terminal. Vcc Pin : As its name suggests, it is a 5V relay. That means it requires 5V DC to operate. Hence, connect the 5v DC power supply to this pin. Ground Pin : Connect it with the ground terminal of 5V power supply.