Changes for page MQTT Forward Instruction

Last modified by Kilight Cao on 2024/08/31 16:26
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From version < 13.1 >
edited by Xiaoling
on 2022/05/27 13:57
To version < 3.2 >
edited by Xiaoling
on 2022/05/27 13:39
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20 20  * LIG16
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 23  = 2. Firmware Change Log for MQTT feature =
24 24  
25 25  (((
... ... @@ -29,6 +29,7 @@
29 29  * LG02_LG08-5.3.1580178039
30 30  ** Initiate version
31 31  
33 +
32 32  = 3. MQTT forward operating principle =
33 33  
34 34  == 3.1 Network Structure ==
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56 56  The data flow works as below diagram.
57 57  )))
58 58  
59 -[[image:image-20220527134000-2.png]]
61 +[[~[~[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]]
60 60  
61 61  (((
62 62  Upstream path
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78 78  Below are the data flow for downstream.
79 79  )))
80 80  
81 -[[image:image-20220527134038-3.png]]
83 +[[image:https://wiki.dragino.com/images/thumb/3/3a/MQTT_Forward_3.png/600px-MQTT_Forward_3.png||height="368" width="600"]]
82 82  
83 83  Downstream path
84 84  
... ... @@ -88,9 +88,7 @@
88 88  The MQTT publish command use Macro settings to generate flexible upstream payload for MQTT publish.
89 89  
90 90  (((
91 -Currently the (% style="color:#4f81bd" %)**-t (topic)**(%%) and (% style="color:#4f81bd" %)**-m (message)**(%%) support Macros.
92 -
93 -
93 +Currently the (% class="mark" %)**-t (topic)**(%%) and (% class="mark" %)**-m (message)**(%%) support Macros.
94 94  )))
95 95  
96 96  === 3.3.1 -t topic macro ===
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111 111  
112 112  === 3.3.3 Example for Macro ===
113 113  
114 -[[image:image-20220527134251-4.png]]
114 +[[image:https://wiki.dragino.com/images/thumb/c/c7/MQTT_Command_9.png/600px-MQTT_Command_9.png||height="385" width="600"]]
115 115  
116 116  MQTT Publish configure
117 117  
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122 122  
123 123  When there is a LoRa sensor arrive. it will be store at the /var/iot/channels as below:
124 124  
125 -[[image:image-20220527134332-5.png]]
125 +[[image:https://wiki.dragino.com/images/thumb/c/c4/MQTT_Command_20.png/600px-MQTT_Command_20.png||height="325" width="600"]]
126 126  
127 127  Sensor Data
128 128  
129 129  (((
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.
130 +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.
131 131  )))
132 132  
133 133  
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186 186  ~-~-help : display this message.
187 187  ~-~-repeat : if publish mode is -f, -m, or -s, then repeat the publish N times.
188 188  ~-~-repeat-delay : if using ~-~-repeat, wait time seconds between publishes. Defaults to 0.
189 -~-~-quiet : (% style="color:red" %)don't print error messages.
189 +~-~-quiet : (% class="mark" %)don't print error messages.
190 190  ~-~-will-payload : payload for the client Will, which is sent by the broker in case of
191 191   unexpected disconnection. If not given and will-topic is set, a zero
192 192   length message will be sent.
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224 224  
225 225  (% class="box" %)
226 226  (((
227 -//# Call MQTT Publish command
227 +# Call MQTT Publish command
228 228  \\# 1. Case with User, Password and Client ID present  (e.g. Azure)
229 229  if [ ! -z "$pass" ] && [ ! -z "$user" ] && [ ! -z "$clientID" ]; then
230 230  case="1" 
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251 251  mosquitto_pub $D -h $server -p $port -q $pub_qos  -t $pub_topic -u $user -P "$pass" $PUB_FLAG "$mqtt_data"
252 252  \\# 0. Else - invalid parameters, just log
253 253  else
254 -case="(% style="color:red" %)Invalid parameters" (%%)
255 -logger (% style="color:red" %)"[IoT.MQTT]:Invalid Parameters - mosquitto_pub not called."(%%)
256 -fi//
254 +case="Invalid parameters" 
255 +logger "[IoT.MQTT]:Invalid Parameters - mosquitto_pub not called."
256 +fi
257 257  )))
258 258  
259 259  
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263 263  
264 264  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/]].
265 265  
266 -
267 267  == 4.2 Simulate via MQTT.fx utility ==
268 268  
269 269  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.
... ... @@ -272,21 +272,19 @@
272 272  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.
273 273  )))
274 274  
275 -[[image:image-20220527134929-6.png]]
274 +[[image:https://wiki.dragino.com/images/thumb/0/06/MQTT_Forward_4.png/600px-MQTT_Forward_4.png||height="201" width="600"]]
276 276  
277 277  Connect to MQTT Broker
278 278  
279 -
280 280  After connected, use publish to public some thing to MQTT server. This to simulate upsteam
281 281  
282 -[[image:image-20220527135037-7.png]]
280 +[[image:https://wiki.dragino.com/images/thumb/b/bd/MQTT_Forward_5.png/600px-MQTT_Forward_5.png||height="149" width="600"]]
283 283  
284 284  Upstream: Publish message to MQTT Broker
285 285  
286 -
287 287  To simulate a downstream, use MQTT.fx to subscribe a topic, and publish something to this topic. as Below:
288 288  
289 -[[image:image-20220527135215-8.png]]
286 +[[image:https://wiki.dragino.com/images/thumb/3/3d/MQTT_Forward_6.png/600px-MQTT_Forward_6.png||height="279" width="600"]]
290 290  
291 291  Downstream: Subscribe a topic to get downstream
292 292  
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298 298  In the Dragino Gateway, we use [[mosquitto client>>url:https://mosquitto.org/]] for MQTT connection.
299 299  
300 300  
301 -(% style="color:#4f81bd" %)**For Upstream**
298 +(% class="mark" %)**For Upstream**
302 302  
303 303  command is [[mosquitto_pub>>url:https://mosquitto.org/man/mosquitto_pub-1.html]]
304 304  
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306 306  
307 307  Note: 192.168.199.148 is MQTT broker address, the gateway and the MQTT broker PC are in the same network.
308 308  
309 -[[image:image-20220527135310-9.png]]
306 +[[image:https://wiki.dragino.com/images/thumb/d/d0/MQTT_Command_6.png/600px-MQTT_Command_6.png||height="188" width="600"]]
310 310  
311 311  mosquitto_pub
312 312  
313 313  
314 -(% style="color:#4f81bd" %)**For Downstream**
311 +(% class="mark" %)**For Downstream**
315 315  
316 316  Use [[mosquitto_sub>>url:https://mosquitto.org/man/mosquitto_sub-1.html]] to subscribe the change on the topic.
317 317  
318 -[[image:image-20220527135440-10.png]]
315 +[[image:https://wiki.dragino.com/images/thumb/8/89/MQTT_Command_7.png/600px-MQTT_Command_7.png||height="267" width="600"]]
319 319  
320 320  mosquitto_sub
321 321  
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325 325  This chapter are step by step to show to configure the Dragino Menu for MQTT auto connection.
326 326  
327 327  (((
328 -Go to (% style="color:#4f81bd" %)**Dragino Menu ~-~-> MQTT Client**
325 +Go to (% class="mark" %)**Dragino Menu ~-~-> MQTT Client**
329 329  )))
330 330  
331 331  [[image:https://wiki.dragino.com/images/thumb/b/bc/MQTT_Command_8.png/600px-MQTT_Command_8.png||height="249" width="600"]]
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333 333  go to mqtt configure menu
334 334  
335 335  (((
336 -Select (% style="color:#4f81bd" %)**Forward to MQTT server**. (% style="color:red" %)**Notice**(%%): This option is removed from the latest firmware, in the latest firmware, if user submit "SAVE & APPLY" in MQTT page, the gateway will use MQTT service.
333 +Select **Forward to MQTT server**. (% class="mark" %)**Notice**(%%): This option is removed from the latest firmware, in the latest firmware, if user submit "SAVE & APPLY" in MQTT page, the gateway will use MQTT service.
337 337  )))
338 338  
339 339  [[image:https://wiki.dragino.com/images/thumb/1/14/MQTT_Commands_8.png/600px-MQTT_Commands_8.png||height="240" width="600"]]
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