MQTT-SN To MQTT Gateway Using Node-Red
Автор: Steve Cope
Загружено: 2024-08-05
Просмотров: 1104
In this video tutorial we look at a demo flow that implements an MQTT-SN to MQTT gateway in node red using QOS -1 or QOS 3 in MQTT-SN. This allows you to publish without a connection.
The video also demonstrates sending data between two MQTT-SN clients without using a broker or Gateway.
Although sending messages from MQTT to MQTT_SN is possible it isn't really feasible dur to the lack of a subscription.
Therefore it is only really suitable for messages from MQTT-SN to MQTT. This isn't really a big drawback as many sensors like smoke alarms,temperature,motion sensors only need to send data.
Although it is currently only available for node-red the idea could be easily transported to python, c, nodejs etc to create a very simple gateway .
The mqttsn-packet module used is here
https://www.npmjs.com/package/mqttsn-...
Demo Flow
https://buymeacoffee.com/steveh5u/e/2...
MQTT-SN tutorials
http://www.steves-internet-guide.com/...
http://www.steves-internet-guide.com/...
http://www.steves-internet-guide.com/...
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