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9	9	Dragino LoRa/LoRaWAN gateway support MQTT forwarding. It can forward the sensor data from LoRa network to MQTT server , and vice verse.
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12	12	== 1.1  Support Devices ==
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27	27	= 2.  Firmware Change Log for MQTT feature =
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39	39	= 3.  MQTT forward operating principle =
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48	48	* **For Downlink:** The gateway subscribe a topic in the MQTT broker, when there is update on the topic, the gateway will know and broadcast the data to Local LoRa network.
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51	51	[[image:image-20220527133547-1.png]]
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53	53	General MQTT structure
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60	60	In this MQTT forward feature, the key point is how the gateway process the sensor data.
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63	63	=== 3.2.1  Upstream ===
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86	86	(((
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90	90	=== 3.2.2  Downstream ===
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95	95	(((
96	96	Below are the data flow for downstream.
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97	97	)))
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99	99	[[image:image-20220527134038-3.png]]
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128	128	=== 3.3.2  -m message macro ===
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139	139	=== 3.3.3  Example for Macro ===
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299	299	This section is an example to show how to set up LG01-N to communicate with a MQTT server. The MQTT server is a simple utility set up in a local PC. Note: User can set up same server via [[this instruction>>url:http://www.steves-internet-guide.com/install-mosquitto-broker/]].
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302	302	== 4.2  Simulate via MQTT.fx utility ==
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471	471	In above section, we have configured the UI to support MQTT upstream and downstream. We can simulate via Linux command. In this section, we will guide how to communicate with remote LoRa End Node for upstream and downstream.
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474	474	=== 4.5.1  Use LoRa Raw protocol for communication ~-~- For LG01/LG02 ===
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496	496	* Downstream: Listening broadcast message from gateway, and print it in console.
497	497	* The LoRa parameter settings in Arduino should match the LoRa settings in gateway, as below:
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499	499	[[image:image-20220527140354-18.png]]
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501	501	LoRa Parameter should match
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605	605	(% class="box infomessage" %)
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607		-**mosquitto_pub -h 10.130.2.192 -p 1883 -t dragino-1d25dc/ -m "260211D,time,txt,hello,20,1,SF12,923300000,2 > /var/iot/push/test"**
	622	+**mosquitto_pub -h 10.130.2.192 -p 1883 -t dragino-1d25dc/ -m "260211D,time,txt,hello,20,1,SF12,923300000,2"**
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610	610	Or use [[MQTT.fx>>https://mqttfx.jensd.de/index.php/download]]
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625	625	User can login the gateway's console and run (% style="color:#4f81bd" %)**logread -f**(%%). It will shows the output when there is packet arrive.User can see if it is correct.
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628	628	= 6.  How to ask for Support =
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