arduino uno r3 and relay

Using Arduino General Electronics
1

Hello,
I want to control the 220V lamp by using arduino uno r3 and relay. I want to connect the relay to a digital pin. When the value is 1 then the lamp mode is on. 0 off.
Is the relay the following link for this purpose?

http://www.ebay.com/itm/390369122672?ssPageName=STRK:MEWNX:IT&_trksid=p3984.m1497.l2649
Features :

  • the item is a 5v 1-channel relay interface board,It can be controlled directly by a wide range of microcontrollers such as Arduino, AVR, PIC, ARM and so on.
  • 1-Channel Relay interface board,
  • Each one needs 15-20mA Driver Current
  • Equiped with high-current relay : DC30V 10A AC250V 10A
  • Standard interface that can be controlled directly by microcontroller

Thank you

2

Yes, this one is okay for you.

As far as I know this relay has 5 pins. Two for the coil, and three for the switching contacts. That is why the header has three contacts. You just need two of them for switchting something on.

3

Thank you for the response,
I did not understand how to connect it.
I attached pictures

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3.jpg751×390 45.4 KB

4

Thank you
It works!