In order to transfer the ownership of the contiki directories use the following command.  

In order to transfer the ownership of the contiki directories use the following command.  

<code><nowiki> sudo chown :user /dev/ttyUSB0 </nowiki></code>

  sudo chown :user /dev/ttyUSB0

<code><nowiki> sudo chown :user /dev/ttyUSB1 </nowiki></code>

  sudo chown :user /dev/ttyUSB1

== Using the Source Code ==

== Using the Source Code ==

=== Step 1 ===

=== Step 1 ===

Go to /examples/ipv6/rpl-collect/ directory.

Go to /examples/collect/ directory.

=== Step 2 ===

=== Step 2 ===

Now we need to program one mote as the sink and the other as source. We will use a predefined target called z1 to upload the code in the motes.

Now we need to program one mote as the sink and the other as source. We will use a predefined target called sky to upload the code in the motes.

For sink:

For sink: