「MQTT完全に理解した」から一歩踏み出してみた / Learning MQTT beyond copy-paste habit

by Shingo Fukui

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COPYRIGHT ©2019 SHINGO FUKUI MQTT  Broker ίϐϖͰ΋MQTTͷجຊ͸Θ͔ͬͨ 5 MQTT Client ϓϩτίϧ͕ܰྔͰIoTʹ޲͍͍ͯΔ ొ৔ਓ෺͸ Broker ͱ Client Publish / Subscribe ܕ௨৴ MQTT Client Topic A Topic B "Hello" Publisher Subscriber Publish "Hello" to B

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COPYRIGHT ©2019 SHINGO FUKUI ҉߸Խͳ͠ MQTTͷ௨৴ͷछྨ 10 TCP઀ଓɹmqtt://αʔόΞυϨε:1883/ Client WebSocket઀ଓɹws://αʔόΞυϨε:9001/ ϒϥ΢β JavaScript Broker Broker TLS҉߸Խ Client WebSocket઀ଓɹwss://αʔόΞυϨε:443/ ϒϥ΢β JavaScript Broker Broker WebSocket  + TLS TCP+TLS TCP઀ଓɹmqtts://αʔόΞυϨε:8883/ WebSocket TCP

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COPYRIGHT ©2019 SHINGO FUKUI ࣮ݧͷਐΊํ: 1εςοϓͣͭෳࡶԽ 13 MQTT.js mosquitto mosquitto TCP TCP Client Broker ID,PW MQTT.js ID,PW TCP mosquitto MQTT.js mosquitto WebSocket WebSocket WebSocket TLS MQTT.js TLS TCP+TLS mosquitto 1. 2. 3. 4. 5.

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COPYRIGHT ©2019 SHINGO FUKUI Node-Red಺ͰBrokerΛಈ͔͍ͨ͠ 17 node.jsͰॻ͔ΕͨMQTT Broker ʮMoscaʯ͕ϊʔυͱͯ͠ಈ͘ ʮύϨοτͷ؅ཧʯͰnode-red-contrib-mqtt-brokerΛ௥Ճ͢Δ TCP , WebSocket྆ରԠɻID,PASSWORD͸? TLS͸ʁ Node-RedαʔόʔͷMQTTϙʔτ͕ղ์͞Ε͍ͯΕ͹֎෦ػثͱ௨৴Ͱ͖Δ subscribe publish Broker

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