If you have a message queued for a sleepy endpoint that has not gone out yet, and you want to change that message, can you?

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• Does the coordinator need to have its sleep mode enabled to send queued packets to sleepy endpoints?

  No and you typically don’t want to put the coordinator into sleep mode. When the queue packet command is used the coordinator will check to see if the endpoint is sleepy, and if it is not then it will send the message immediately. In other words, the ...

• Can the coordinator queue one message for each endpoint, or does it only queue one message in total?

  There is a single slot in the queue for each registered endpoint. Thus, multiple endpoints may have queued messages simultaneously, but only one message can be queued for each endpoint at any given time.

• Can the coordinator remotely change the Listen Window in endpoints?

  No we do not allow coordinators to dynamically change the listen window for endpoints. The reason for this is that a sleepy endpoint is typically battery powered and dynamically extending the listen window in the field could unexpectedly and ...

• Is it possible to queue up multiple message to go to the same device?

  No, you can only queue one message at a time for a particular endpoint. Each endpoint has its own queue that is independent of the others. The purpose of the queued message is to immediately send a message to a sleepy endpoint when it has waken up ...

• Can I wake the sleepy endpoint using AT command?

  No, the serial ports do not run in sleep mode. To bring the endpoint out of sleep mode you need to set the SLEEP_RQ pin low.