<
From version < 49.2 >
edited by Xiaoling
on 2022/08/09 16:18
To version < 49.1 >
edited by Kilight Cao
on 2022/07/29 11:38
>
Change comment: There is no comment for this version

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1 -XWiki.Xiaoling
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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.
10 10  
11 11  
12 -
13 13  == 1.1  Support Devices ==
14 14  
15 15  
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23 23  * LIG16
24 24  * MS14 series if installed with the same firmware. (in this case, the MQTT forward will work , but no LoRa support)
25 25  
26 -
27 -
28 -
29 29  = 2.  Firmware Change Log for MQTT feature =
30 30  
31 31  
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36 36  * LG02_LG08-5.3.1580178039
37 37  ** Initiate version
38 38  
39 -
40 -
41 -
42 42  = 3.  MQTT forward operating principle =
43 43  
44 44  
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50 50  * **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.
51 51  * **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.
52 52  
53 -
54 -
55 55  [[image:image-20220527133547-1.png]]
56 56  
57 57  General MQTT structure
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64 64  In this MQTT forward feature, the key point is how the gateway process the sensor data.
65 65  
66 66  
67 -
68 68  === 3.2.1  Upstream ===
69 69  
70 70  
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90 90  
91 91  (((
92 92  
93 -
94 -
95 95  )))
96 96  
97 97  === 3.2.2  Downstream ===
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101 101  
102 102  (((
103 103  Below are the data flow for downstream.
104 -
105 -
106 106  )))
107 107  
108 108  [[image:image-20220527134038-3.png]]
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132 132  * USERNAME: User ID (-u)
133 133  * HOSTNAME: Device Hostname
134 134  
135 -
136 -
137 -
138 138  === 3.3.2  -m message macro ===
139 139  
140 140  
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144 144  * META: Completely sensor data with time stamp and rssi
145 145  * JSON: Convert META to json format.
146 146  
147 -
148 -
149 -
150 150  === 3.3.3  Example for Macro ===
151 151  
152 152  
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310 310  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/]].
311 311  
312 312  
313 -
314 314  == 4.2  Simulate via MQTT.fx utility ==
315 315  
316 316  
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483 483  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.
484 484  
485 485  
486 -
487 487  === 4.5.1  Use LoRa Raw protocol for communication ~-~- For LG01/LG02 ===
488 488  
489 489  
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509 509  * Downstream: Listening broadcast message from gateway, and print it in console.
510 510  * The LoRa parameter settings in Arduino should match the LoRa settings in gateway, as below:
511 511  
512 -
513 -
514 514  [[image:image-20220527140354-18.png]]
515 515  
516 516  LoRa Parameter should match
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640 640  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.
641 641  
642 642  
643 -
644 644  = 6.  How to ask for Support =
645 645  
646 646  
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