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b. Broker Address: There are two slots for Broker Addresses. mCore will try to
open a connection to Broker Address 1 and then will cycle to Broker Address 2
based on the settings described in more detail below.
c. Transport: This protocol can be use on unencrypted TCP/IP or you can choose
TLS-SSL.
d. CA Certificate: To upload the root certificate(s) to be used to validate the
broker's certificate.
e. Client Certificate: To upload a certificate to be used to validate the device to
the broker.
f. Device Key: To upload the Private Key associated with the Client Certificate.
g. MQTT Port: you can set any port you want if it is setup on both the broker and
the publisher. Standard ports are 1883 for TCP/IP and 8883 for TLS-SSL.
h. Client ID: This is a value included in the header of each message. It is used as
part of the default topic name. In addition, it can just be used by the broker to
help identify a publisher. If left at Default, mCore’s serial number will be used.
i. Site Name: This value is a string that is inserted into the JSON packet and can
be used as a “hint” as to the source, but is not part of the topic name.
j. Thing Name: The name of the thing within the AWS Server. This is REQUIRED
by AWS and is included in the topic name. However, the rest of the topic name
is determined by AWS.
k. Keep Alive Period: If there are no packets sent within this time, mCore will
send a small packet to keep the connection open and prevent disconnection
from the broker.
l. Initial Backoff: If mCore cannot establish a connection with the broker it will
back off for this time period and then try again. If it still does not get a
connection, it will double this value and will continue to try at longer and
longer multiples of this time setting.
m. Maximum Backoff: this setting is the maximum amount of time it will back off
when a connection cannot be established.
n. Publication QoS: MQTT has three Quality of Service settings. They are:
i. 0=Fire and Forget.
ii. 1=Send At Least Once by using an acknowledge to ensure that the
packet was received. Note that with this setting you are guaranteed to
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