DFR0144 Relay Shield: driving relays from XBEE BLOCK

Look at attachment (an excerpt from the DFR0144 Relay Shield Wiki). How do we use Arduino Digital I/O to control relays? Is example code available?
2013-12-30 00:48:16 Hello Freeland,
Almost every product, we will have its wiki page.
It contains the maual, guide, sample code or somthing which you need.
Here is the wiki page of Relay shield
[url=https://www.dfrobot.com/wiki/index.php/Relay_Shield_for_Arduino_V2.1_(SKU:DFR0144)]https://www.dfrobot.com/wiki/index.php/Relay_Shield_for_Arduino_V2.1_(SKU:DFR0144)[/url]
I like this shield, with the xbee socket, we can control something directly
This is very convenient.
Grey.CC
Almost every product, we will have its wiki page.
It contains the maual, guide, sample code or somthing which you need.
Here is the wiki page of Relay shield
[url=https://www.dfrobot.com/wiki/index.php/Relay_Shield_for_Arduino_V2.1_(SKU:DFR0144)]https://www.dfrobot.com/wiki/index.php/Relay_Shield_for_Arduino_V2.1_(SKU:DFR0144)[/url]
I like this shield, with the xbee socket, we can control something directly
This is very convenient.
