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21	21	* MS14 series if installed with the same firmware. (in this case, the MQTT forward will work , but no LoRa support)
22	22
23	23
24		-
25	25	= 2. Firmware Change Log for MQTT feature =
26	26
27	27	(((
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32	32	** Initiate version
33	33
34	34
35		-
36	36	= 3. MQTT forward operating principle =
37	37
38	38	== 3.1 Network Structure ==
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106	106	* HOSTNAME: Device Hostname
107	107
108	108
109		-
110	110	=== 3.3.2 -m message macro ===
111	111
112	112	* HOSTNAME: Device Hostname
...	...	@@ -116,7 +116,6 @@
116	116	* JSON: Convert META to json format.
117	117
118	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**
	499	+(% 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]]
	503	+[[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]]
	509	+[[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
...	...	@@ -538,20 +538,40 @@
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]]
	534	+[[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
	543	+
	544	+=== MQTT Downstream format ===
	545	+
	546	+
	547	+mosquitto_pub -h $server_address -p $server_port -t $Client_ID -m "**dev_addr,imme/time,txt/hex,payload**"
	548	+
	549	+(% class="box infomessage" %)
	550	+(((
	551	+mosquitto_pub -h 10.130.2.192 -p 1883 -t dragino-1d25dc/ -m "260211D,time,txt,hello"
	552	+)))
	553	+
	554	+mosquitto_pub -h $server_address -p $server_port -t $Client_ID -m "**dev_addr,imme/time,txt/hex,payload,txpw,txbw,SF,frequency,rxwindow**"
	555	+
	556	+(% class="box infomessage" %)
	557	+(((
	558	+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"
	559	+)))
	560	+
	561	+Or use [[MQTT.fx>>https://mqttfx.jensd.de/index.php/download]]
	562	+
	563	+[[image:image-20220613192816-6.png||height="440" width="1056"]]
	564	+
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
	567	+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

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