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Topic: arduino uno r3 and relay (Read 1 time) previous topic - next topic


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?

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


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.


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


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