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35	35	working principle
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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]]
	38	+[[image:image-20220531135521-3.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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42	42	[[~[~[image:https://wiki.dragino.com/images/thumb/d/de/MQTT_3.png/400px-MQTT_3.png~|~|height="160" width="400"~]~]>>url:https://wiki.dragino.com/index.php/File:MQTT_3.png]]
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44	44	Schematic diagram:downlink.In this section, we will try to program LG01 to fetch download data from ThingSpeak, then broadcast this data to local LoRa network. The end node will get this message and check if they need to do something. Similar with Uplink Example, we will first try to do it in PC, then do it in Linux side, and finally integrate it with LoRa.