Changes for page MQTT Forward Instruction

Last modified by Kilight Cao on 2024/08/31 16:26
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From version < 5.1 >
edited by Xiaoling
on 2022/05/27 13:40
To version < 9.2 >
edited by Xiaoling
on 2022/05/27 13:50
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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 -
24 24  = 2. Firmware Change Log for MQTT feature =
25 25  
26 26  (((
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30 30  * LG02_LG08-5.3.1580178039
31 31  ** Initiate version
32 32  
33 -
34 34  = 3. MQTT forward operating principle =
35 35  
36 36  == 3.1 Network Structure ==
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58 58  The data flow works as below diagram.
59 59  )))
60 60  
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]]
59 +[[image:image-20220527134000-2.png]]
62 62  
63 63  (((
64 64  Upstream path
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80 80  Below are the data flow for downstream.
81 81  )))
82 82  
83 -[[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]]
84 84  
85 85  Downstream path
86 86  
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90 90  The MQTT publish command use Macro settings to generate flexible upstream payload for MQTT publish.
91 91  
92 92  (((
93 -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 +
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: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]]
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: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]]
126 126  
127 127  Sensor Data
128 128  
129 129  (((
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.
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.
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 : (% class="mark" %)don't print error messages.
189 +~-~-quiet : (% style="color:red" %)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="Invalid parameters" 
255 -logger "[IoT.MQTT]:Invalid Parameters - mosquitto_pub not called."
256 -fi
254 +case="(% style="color:red" %)Invalid parameters" (%%)
255 +logger (% style="color:red" %)"[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 +
266 266  == 4.2 Simulate via MQTT.fx utility ==
267 267  
268 268  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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271 271  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.
272 272  )))
273 273  
274 -[[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]]
275 275  
276 276  Connect to MQTT Broker
277 277  
279 +
278 278  After connected, use publish to public some thing to MQTT server. This to simulate upsteam
279 279  
280 -[[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]]
281 281  
282 282  Upstream: Publish message to MQTT Broker
283 283  
286 +
284 284  To simulate a downstream, use MQTT.fx to subscribe a topic, and publish something to this topic. as Below:
285 285  
286 286  [[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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