amc2020:group_n:wifi
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| amc2020:group_n:wifi [2020/07/29 19:40] – [3.1 Code] jonas001 | amc2020:group_n:wifi [2021/08/24 17:35] (current) – external edit 127.0.0.1 | ||
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| ===== 1. About MQTT ===== | ===== 1. About MQTT ===== | ||
| - | MQTT stands for Message Queuing Telemetry Transport and is publish-subscribe network protocol for transporting messages between different devices. It was first developed in 1999 and is very popular for IoT (Internet of Things) applications. | + | MQTT stands for Message Queuing Telemetry Transport and is a publish-subscribe network protocol for transporting messages between different devices. It was first developed in 1999 and is very popular for IoT (Internet of Things) applications. |
| The core of an MQTT network is a server also called MQTT broker. Other devices, called clients, can connect through WiFi to the broker and publish or subscribe to certain topics. The broker receives the messages that are published by the clients and sorts them by their topics. Clients can also subscribe to topics; if a new message is published under a certain topic, the broker redirects this message to all clients that are subscribed to that topic. | The core of an MQTT network is a server also called MQTT broker. Other devices, called clients, can connect through WiFi to the broker and publish or subscribe to certain topics. The broker receives the messages that are published by the clients and sorts them by their topics. Clients can also subscribe to topics; if a new message is published under a certain topic, the broker redirects this message to all clients that are subscribed to that topic. | ||
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amc2020/group_n/wifi.1596044411.txt.gz · Last modified: 2021/08/24 17:34 (external edit)