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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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15	15	This MQTT forward instruction is for below devices:
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17	17	* Firmware Version > LG02_LG08-5.3.1580178039 [[Firmware Download>>url:http://www.dragino.com/downloads/index.php?dir=LoRa_Gateway/LPS8/Firmware/Release/]]
18		-* LG01N, OLG01N ((% style="color:red" %)**Warning**(%%): LG01-P LG01-S use another instruction: [[MQTT for LG01-P/LG01S>>doc:Through MQTT to upload data.WebHome]])
	19	+* LG01N, OLG01N ((% style="color:red" %)**Warning**(%%): LG01-P LG01-S use another instruction: [[MQTT for LG01-P/LG01S>>doc:Main.Through MQTT to upload data.WebHome]])
19	19	* LG02, OLG02
20	20	* LG308, DLOS8
21	21	* LPS8
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23	23	* MS14 series if installed with the same firmware. (in this case, the MQTT forward will work , but no LoRa support)
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	27	+
26	26	= 2.  Firmware Change Log for MQTT feature =
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34	34	** Initiate version
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	39	+
37	37	= 3.  MQTT forward operating principle =
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45	45	* **For Uplink:**  The sensor sends data to LoRa Gateway via LoRa wireless, The gateway will process these data and forward to remote MQTT Broker via Internet.
46	46	* **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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48	48	[[image:image-20220527133547-1.png]]
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50	50	General MQTT structure
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57	57	In this MQTT forward feature, the key point is how the gateway process the sensor data.
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	64	+
60	60	=== 3.2.1  Upstream ===
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83	83	(((
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85	85	)))
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87	87	=== 3.2.2  Downstream ===
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92	92	(((
93	93	Below are the data flow for downstream.
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94	94	)))
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96	96	[[image:image-20220527134038-3.png]]
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121	121	* HOSTNAME: Device Hostname
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124	124	=== 3.3.2  -m message macro ===
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131	131	* JSON: Convert META to json format.
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134	134	=== 3.3.3  Example for Macro ===
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294	294	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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297	297	== 4.2  Simulate via MQTT.fx utility ==
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466	466	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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469	469	=== 4.5.1  Use LoRa Raw protocol for communication ~-~- For LG01/LG02 ===
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491	491	* Downstream: Listening broadcast message from gateway, and print it in console.
492	492	* The LoRa parameter settings in Arduino should match the LoRa settings in gateway, as below:
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494	494	[[image:image-20220527140354-18.png]]
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496	496	LoRa Parameter should match
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620	620	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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623	623	= 6.  How to ask for Support =
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