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edited by Xiaoling
on 2022/05/12 16:32
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edited by Xiaoling
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7 7  
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 10  == 1.1 Support Devices ==
11 11  
12 12  This MQTT forward instruction is for below devices:
13 13  
14 14  * Firmware Version > LG02_LG08-5.3.1580178039 [[Firmware Download>>url:http://www.dragino.com/downloads/index.php?dir=LoRa_Gateway/LPS8/Firmware/Release/]]
15 -* LG01N, OLG01N ((% class="mark" %)**Warning**(%%): LG01-P LG01-S use another instruction: [[MQTT for LG01-P/LG01S>>url:https://wiki.dragino.com/index.php/Through_MQTT_to_upload_data]])
16 +* LG01N, OLG01N ((% style="color:red" %)**Warning**(%%): LG01-P LG01-S use another instruction: [[MQTT for LG01-P/LG01S>>url:https://wiki.dragino.com/index.php/Through_MQTT_to_upload_data]])
16 16  * LG02, OLG02
17 17  * LG308, DLOS8
18 18  * LPS8
... ... @@ -37,7 +37,7 @@
37 37  * 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.
38 38  * 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,
39 39  
40 -[[image:https://wiki.dragino.com/images/thumb/4/45/MQTT_Forward_1.png/600px-MQTT_Forward_1.png||height="348" width="600"]]
41 +[[image:image-20220527133547-1.png]]
41 41  
42 42  General MQTT structure
43 43  
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55 55  The data flow works as below diagram.
56 56  )))
57 57  
58 -[[~[~[image:https://wiki.dragino.com/images/thumb/2/2a/MQTT_Forward_2.png/600px-MQTT_Forward_2.png~|~|height="355" width="600"~]~]>>url:https://wiki.dragino.com/index.php/File:MQTT_Forward_2.png]]
59 +[[image:image-20220527134000-2.png]]
59 59  
60 60  (((
61 61  Upstream path
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77 77  Below are the data flow for downstream.
78 78  )))
79 79  
80 -[[image:https://wiki.dragino.com/images/thumb/3/3a/MQTT_Forward_3.png/600px-MQTT_Forward_3.png||height="368" width="600"]]
81 +[[image:image-20220527134038-3.png]]
81 81  
82 82  Downstream path
83 83  
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87 87  The MQTT publish command use Macro settings to generate flexible upstream payload for MQTT publish.
88 88  
89 89  (((
90 -Currently the (% class="mark" %)**-t (topic)**(%%) and (% class="mark" %)**-m (message)**(%%) support Macros.
91 +Currently the (% style="color:#4f81bd" %)**-t (topic)**(%%) and (% style="color:#4f81bd" %)**-m (message)**(%%) support Macros.
92 +
93 +
91 91  )))
92 92  
93 93  === 3.3.1 -t topic macro ===
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108 108  
109 109  === 3.3.3 Example for Macro ===
110 110  
111 -[[image:https://wiki.dragino.com/images/thumb/c/c7/MQTT_Command_9.png/600px-MQTT_Command_9.png||height="385" width="600"]]
114 +[[image:image-20220527134251-4.png]]
112 112  
113 113  MQTT Publish configure
114 114  
... ... @@ -119,12 +119,12 @@
119 119  
120 120  When there is a LoRa sensor arrive. it will be store at the /var/iot/channels as below:
121 121  
122 -[[image:https://wiki.dragino.com/images/thumb/c/c4/MQTT_Command_20.png/600px-MQTT_Command_20.png||height="325" width="600"]]
125 +[[image:image-20220527134332-5.png]]
123 123  
124 124  Sensor Data
125 125  
126 126  (((
127 -According to above macro. Gateway will publish (% class="mark" %)**field1=22.0&field2=49.0**(%%) to topic: (% class="mark" %)**dragino-1b7060/78901/data**(%%), where 78901 is the remote channel for this node ID.
130 +According to above macro. Gateway will publish (% style="color:#4f81bd" %)**field1=22.0&field2=49.0**(%%) to topic: (% style="color:#4f81bd" %)**dragino-1b7060/78901/data**(%%), where 78901 is the remote channel for this node ID.
128 128  )))
129 129  
130 130  
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183 183  ~-~-help : display this message.
184 184  ~-~-repeat : if publish mode is -f, -m, or -s, then repeat the publish N times.
185 185  ~-~-repeat-delay : if using ~-~-repeat, wait time seconds between publishes. Defaults to 0.
186 -~-~-quiet : (% class="mark" %)don't print error messages.
189 +~-~-quiet : (% style="color:red" %)don't print error messages.
187 187  ~-~-will-payload : payload for the client Will, which is sent by the broker in case of
188 188   unexpected disconnection. If not given and will-topic is set, a zero
189 189   length message will be sent.
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221 221  
222 222  (% class="box" %)
223 223  (((
224 -# Call MQTT Publish command
227 +//# Call MQTT Publish command
225 225  \\# 1. Case with User, Password and Client ID present  (e.g. Azure)
226 226  if [ ! -z "$pass" ] && [ ! -z "$user" ] && [ ! -z "$clientID" ]; then
227 227  case="1" 
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248 248  mosquitto_pub $D -h $server -p $port -q $pub_qos  -t $pub_topic -u $user -P "$pass" $PUB_FLAG "$mqtt_data"
249 249  \\# 0. Else - invalid parameters, just log
250 250  else
251 -case="Invalid parameters" 
252 -logger "[IoT.MQTT]:Invalid Parameters - mosquitto_pub not called."
253 -fi
254 +case="(% style="color:red" %)Invalid parameters" (%%)
255 +logger (% style="color:red" %)"[IoT.MQTT]:Invalid Parameters - mosquitto_pub not called."(%%)
256 +fi//
254 254  )))
255 255  
256 256  
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260 260  
261 261  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/]].
262 262  
266 +
263 263  == 4.2 Simulate via MQTT.fx utility ==
264 264  
265 265  The [[MQTT.fx>>url:http://mqttfx.jensd.de/index.php/download]] is a MQTT client tool. We can use this to simulate a MQTT connection to our MQTT broker first to make sure the MQTT broker works. This will also help us understand how it works.
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268 268  In this test, the MQTT broker and MQTT.fx are installed in the same PC, so the MQTT server address in MQTT.fx should be localhost. Below shows how to connect to the server.
269 269  )))
270 270  
271 -[[image:https://wiki.dragino.com/images/thumb/0/06/MQTT_Forward_4.png/600px-MQTT_Forward_4.png||height="201" width="600"]]
275 +[[image:image-20220527134929-6.png]]
272 272  
273 273  Connect to MQTT Broker
274 274  
279 +
275 275  After connected, use publish to public some thing to MQTT server. This to simulate upsteam
276 276  
277 -[[image:https://wiki.dragino.com/images/thumb/b/bd/MQTT_Forward_5.png/600px-MQTT_Forward_5.png||height="149" width="600"]]
282 +[[image:image-20220527135037-7.png]]
278 278  
279 279  Upstream: Publish message to MQTT Broker
280 280  
286 +
281 281  To simulate a downstream, use MQTT.fx to subscribe a topic, and publish something to this topic. as Below:
282 282  
283 283  [[image:https://wiki.dragino.com/images/thumb/3/3d/MQTT_Forward_6.png/600px-MQTT_Forward_6.png||height="279" width="600"]]
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477 477  
478 478  
479 479  (((
486 +(((
480 480  **Step 3**: Set up publish format and MQTT channel. The LG308 will store the Data from End node in HEX format in the file. And we need to config the format to META
481 481  )))
489 +)))
482 482  
483 483  [[image:https://wiki.dragino.com/images/thumb/8/8d/LG308_MQTT_3.png/600px-LG308_MQTT_3.png||height="385" width="600"]]
484 484  
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485 485  Publish mush use META as data format for LG308
486 486  
487 487  
488 -Step 4: Map the Device Address to Remote ID in MQTT server.
496 +**Step 4**: Map the Device Address to Remote ID in MQTT server.
489 489  
490 490  [[image:https://wiki.dragino.com/images/thumb/7/7f/LG308_MQTT_4.png/600px-LG308_MQTT_4.png||height="335" width="600"]]
491 491  
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492 492  Map Dev Addr to remote ID
493 493  
494 494  
495 -Step 5: Upstream: Save the change, we can see the log info via "sytem log", End Node and MQTT Server
503 +**Step 5: Upstream**: Save the change, we can see the log info via "sytem log", End Node and MQTT Server
496 496  
497 497  [[image:https://wiki.dragino.com/images/thumb/b/be/LG308_MQTT_6.png/600px-LG308_MQTT_6.png||height="279" width="600"]]
498 498  
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506 506  
507 507  LHT65 Decoder
508 508  
509 -Step 6: Set up subscribe: Subscribe a topci for downstream.
510 510  
518 +**Step 6: Set up subscribe:** Subscribe a topci for downstream.
519 +
511 511  [[image:https://wiki.dragino.com/images/thumb/b/b9/LG308_MQTT_7.png/600px-LG308_MQTT_7.png||height="176" width="600"]]
512 512  
513 513  Subscribe to a topic
514 514  
515 515  
516 -Step 7: Downstream: Save the change, we can see the log info via "sytem log", End Node and MQTT Server.
525 +**Step 7**: Downstream: Save the change, we can see the log info via "sytem log", End Node and MQTT Server.
517 517  
518 518  [[image:https://wiki.dragino.com/images/thumb/9/97/LG308_MQTT_8.png/600px-LG308_MQTT_8.png||height="298" width="600"]]
519 519  
520 520  Downstream Flow
521 521  
522 -Notice: The text use for Downstream must meet the requirement from [[LG308 Downstream Payload>>url:https://wiki.dragino.com/index.php/Communication_with_ABP_End_Node#Downstream]]
531 +(% class="mark" %)**Notice: The text use for Downstream must meet the requirement from [[LG308 Downstream Payload>>url:https://wiki.dragino.com/index.php/Communication_with_ABP_End_Node#Downstream]]**
523 523  
524 524  
525 525  = 5. Example For Different MQTT Servers =
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535 535  )))|=(% style="width: 242px;" %)(((
536 536  [[image:https://wiki.dragino.com/images/thumb/3/3b/Lewei50.png/200px-Lewei50.png||alt="Lewei50.png" height="65" width="223"]]
537 537  
538 -== ==
539 539  
540 540  == [[乐联网平台>>url:https://www.lewei50.com/]] ==
541 541  
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