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26	26	The server we use here is ThingSpeak which has an intuitive chart to show the test result for our test.The ThingSpeak IoT service now supports MQTT subscriptions to receive instant updates when [[ThingSpeak>>url:https://thingspeak.com/]] channel gets updated. The method here is general and can be used with other IoT servers for MQTT connection as well.
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28		-[[image:image-20220531135402-1.png]]
	28	+[[~[~[image:https://wiki.dragino.com/images/3/3d/MQTT_1.png~|~|height="68" width="260"~]~]>>url:https://wiki.dragino.com/index.php/File:MQTT_1.png]]
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30	30	Message Queuing Telemetry Transport
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	32	+[[~[~[image:https://wiki.dragino.com/images/thumb/c/cb/YuanliMQTT.png/400px-YuanliMQTT.png~|~|height="139" width="400"~]~]>>url:https://wiki.dragino.com/index.php/File:YuanliMQTT.png]]
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33		-[[image:image-20220531135449-2.png]]
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35	35	working principle
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38	38	[[~[~[image:https://wiki.dragino.com/images/thumb/f/f9/MQTT_2.png/400px-MQTT_2.png~|~|height="160" width="400"~]~]>>url:https://wiki.dragino.com/index.php/File:MQTT_2.png]]
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40	40	Schematic diagram: uplink.In this section, we will try to program LG01 to uplink data to ThingSpeak. The data flow in this example.We have already tried ① and ② in the above simple LoRa example. Now we will try the step ③ first, after it work as expect, we will integrate these three steps together for a complete uplink example.

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1		-XWiki.Xiaoling

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