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Joining a network consists of the following steps:

• The mote listens for advertisement messages sent by the 

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   or 

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  s already in the network.
• Once it hears such an advertisement, in synchronizes to the network, and starts the joining process with the 

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  . Note that this can be done even when the 

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   is multiple hops away from the joining 

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  .
• Once the joining process is finished, the 

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   is Operational. It has been assigned some "base bandwidth" from the 

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  , allowing it to send infrequent traffic to the 

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  .

The 

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• Configure the network identifier of the mote. This parameter is stored in non-volatile memory, so your application does not need to do this step every time this the device boots. In particular, during development, you can set the network identifier through the mset netid CLI command, and reboot the part.
• Optionally, configure the join duty cycle of the mote to the appropriate trade-off point between joining speed and average power consumption during the searching process.
• Ask the 

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   stack to search for a network and join, by calling the dnm_loc_joinCmd() function.
• Monitor the events received from the the 

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   stack. The mote is joined when your application receives the DN_API_LOC_EV_OPERATIONAL event.

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Once the device is joined, the 01-join sample application starts a task which sends a packet to the manager over the wireless network every 10s. You can connect the ApiExplorer application from the 

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You can also use the ApiExplorer application to send arbitrary data to the mote, using the sendData command:

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The 01-join sample application prints details about the received data over CLI:

acketpacket received:
 - sourceAddr: ff020000000000000000000000000002
 - sourcePort: 60000
 - data:       (4 bytes) aabbccdd

Implementation Details

The 01-join sample application uses the Helper Modules to initialize the CLI Module and interaction with the local interface. In particular, it configures the loc_task helper module to join the network and open a socket bound to UDP port 60000.

It uses a single task (sendTask) which:

• waits for the loc_task helper module to have joined the network (by pending on the joinedSem semaphore);
• every 10s, send a UDP packet to the IPv6 address of the manager.