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	1	+XWiki.Xiaoling

Content

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1		-**~ Contents：**
	1	+**~ Table of Contents：**
2	2
3	3	{{toc/}}
4	4
5	5
6		-= 1. Introduction =
	6	+= 1.  Introduction =
7	7
	8	+
8	8	Dragino LoRa/LoRaWAN gateway support MQTT forwarding. It can forward the sensor data from LoRa network to MQTT server , and vice verse.
9	9
10	10
11		-== 1.1 Support Devices ==
	12	+== 1.1  Support Devices ==
12	12
	14	+
13	13	This MQTT forward instruction is for below devices:
14	14
15	15	* Firmware Version > LG02_LG08-5.3.1580178039 [[Firmware Download>>url:http://www.dragino.com/downloads/index.php?dir=LoRa_Gateway/LPS8/Firmware/Release/]]
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22	22
23	23
24	24
25		-= 2. Firmware Change Log for MQTT feature =
26	26
	28	+= 2.  Firmware Change Log for MQTT feature =
	29	+
	30	+
27	27	(((
28	28	This instruction is wrote start from LG02_LG08-5.3.1580178039. Below is related change log since this version of firmware.
29	29	)))
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33	33
34	34
35	35
	40	+
36	36	= 3. MQTT forward operating principle =
37	37
38	38	== 3.1 Network Structure ==
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105	105	* USERNAME: User ID (-u)
106	106	* HOSTNAME: Device Hostname
107	107
108		-
109		-
110	110	=== 3.3.2 -m message macro ===
111	111
112	112	* HOSTNAME: Device Hostname
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115	115	* META: Completely sensor data with time stamp and rssi
116	116	* JSON: Convert META to json format.
117	117
118		-
119		-
120	120	=== 3.3.3 Example for Macro ===
121	121
122	122	[[image:image-20220527134251-4.png]]
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500	500
501	501	(((
502	502	(((
503		-(% style="color:#4f81bd" %)**Step 3**(%%): Set up publish format and MQTT channel. The LG308 will store the Data from End node in (% style="color:#4f81bd" %)**HEX format**(%%) in the file. And we need to config the format to (% style="color:#4f81bd" %)**META**
	504	+(% style="color:#4f81bd" %)**Step 3**(%%): Set up publish format and MQTT channel. The LG308 will store the Data from End node in (% style="color:#4f81bd" %)**HEX format**(%%) in the file.
504	504	)))
505	505	)))
506	506
507		-[[image:image-20220527141450-22.png]]
	508	+[[image:image-20220613191345-4.png]]
508	508
509		-Publish mush use META as data format for LG308
510	510
511	511
512	512	(% style="color:#4f81bd" %)**Step 4**(%%): Map the Device Address to Remote ID in MQTT server.
513	513
514		-[[image:image-20220527141727-23.png]]
	514	+[[image:image-20220613190635-2.png]]
515	515
516		-Map Dev Addr to remote ID
517	517
518	518
519	519	(% style="color:#4f81bd" %)**Step 5: Upstream**(%%): Save the change, we can see the log info via "sytem log", End Node and MQTT Server
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520	520
521	521	[[image:image-20220527141843-24.png]]
522	522
523		-Upstream Process
524	524
525	525
526	526
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538	538
539	539	(% style="color:#4f81bd" %)**Step 6: Set up subscribe**(%%)**:** Subscribe a topci for downstream.
540	540
541		-[[image:image-20220527142115-27.png]]
	539	+[[image:image-20220613191426-5.png]]
542	542
543		-Subscribe to a topic
544	544
545	545
546		-
547	547	(% style="color:#4f81bd" %)**Step 7: Downstream**(%%): Save the change, we can see the log info via "sytem log", End Node and MQTT Server.
548	548
549	549	[[image:image-20220527142239-28.png]]
550	550
551		-Downstream Flow
552	552
	548	+
	549	+=== MQTT Downstream format ===
	550	+
	551	+
	552	+mosquitto_pub -h $server_address -p $server_port -t $Client_ID -m "**dev_addr,imme/time,txt/hex,payload**"
	553	+
	554	+(% class="box infomessage" %)
	555	+(((
	556	+mosquitto_pub -h 10.130.2.192 -p 1883 -t dragino-1d25dc/ -m "260211D,time,txt,hello"
	557	+)))
	558	+
	559	+mosquitto_pub -h $server_address -p $server_port -t $Client_ID -m "**dev_addr,imme/time,txt/hex,payload,txpw,txbw,SF,frequency,rxwindow**"
	560	+
	561	+(% class="box infomessage" %)
	562	+(((
	563	+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"
	564	+)))
	565	+
	566	+Or use [[MQTT.fx>>https://mqttfx.jensd.de/index.php/download]]
	567	+
	568	+[[image:image-20220613192816-6.png||height="440" width="1056"]]
	569	+
553	553	(% style="color:red" %)**Notice: The text use for Downstream must meet the requirement from [[LG308 Downstream Payload>>Communicate with ABP End Node without LoRaWAN Network Server --- LG308||anchor="H2.2Downstream"]]**
554	554
	572	+Check out this link for more mosquito-related directives [[https:~~/~~/mosquitto.org/man/mosquitto_pub-1.html>>https://mosquitto.org/man/mosquitto_pub-1.html]]
555	555
556	556	= 5. How to Debug =
557	557