cogitoergosum
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What is an “Embedded Agent” in reference to a Low Powered IoT Edge Device?
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13 votes

Generally speaking, an agent is a 'bi-directional' piece of software; i.e., it reads parameters from the device and the communicates the same to cloud or even a gateway. More often than not, an OEM ...

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Data connection issues during when working with IoT devices
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9 votes

To begin with, if there are 'data issues', those issues should be taken up with the data service provider for violation of an agreed SLA. Next, there should be a offline data store option in your ...

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How can I use 2FA in an MQTT network?
5 votes

As per the specification, the connect message may optionally provide user name and a password. This is validated against a ACL saved somewhere on the broker. So, that is your first factor of ...

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Communication Between Server and Raspberry Pi
4 votes

You might want to look at samples of MQTT protocol. It will help you connect server an Pi via a broker to enable pub-sub communication. Try these: https://github.com/bluerhinos/phpMQTT and https://...

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aws iot - mosquitto_sub does not subscribe
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3 votes

Two things: The + as a wild card for subscription is NOT honored. From the documentation: The MQTT wildcard character '+' is not treated as a wildcard within a policy. Attempts to subscribe to ...

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mosquitto - Broker won't start with persistence configuration
3 votes

As mentioned in the post above, the persistence configuration options were provided in a separate file - persist.conf placed under /etc/mosquitto/conf.d directory. However, there are persistence ...

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Subscribing to MQTT birth and will topics? (emqttd)
1 votes

Well, not sure about the birth message and LWT (Last Will and Testament) is optional as per the spec. So, you wouldn't necessarily receive messages unless you had your broker customised to such ...

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