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Last modified by Xiaoling on 2022/09/02 18:11
From version 14.2
edited by Xiaoling
on 2022/05/31 14:03
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To version 44.3
edited by Xiaoling
on 2022/05/31 14:33
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Summary

Details

Page properties
Content
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1 +**Contents: **
2 +
1 1  {{toc/}}
2 2  
3 3  
... ... @@ -21,9 +21,12 @@
21 21  * Notification mechanism, notify the transmission of both sides when an exception occurs
22 22  
23 23  
26 +
24 24  = 3. What does this example shows? How it works? =
25 25  
29 +(((
26 26  The server we use here is ThingSpeak which has an intuitive chart to show the test result for our test.The ThingSpeak IoT service now supports MQTT subscriptions to receive instant updates when [[ThingSpeak>>url:https://thingspeak.com/]] channel gets updated. The method here is general and can be used with other IoT servers for MQTT connection as well.
31 +)))
27 27  
28 28  [[image:image-20220531135402-1.png]]
29 29  
... ... @@ -37,19 +37,28 @@
37 37  
38 38  [[image:image-20220531135521-3.png]]
39 39  
45 +(((
40 40  Schematic diagram: uplink.In this section, we will try to program LG01 to uplink data to ThingSpeak. The data flow in this example.We have already tried ① and ② in the above simple LoRa example. Now we will try the step ③ first, after it work as expect, we will integrate these three steps together for a complete uplink example.
47 +)))
41 41  
42 42  
43 43  
44 44  [[image:image-20220531135607-4.png]]
45 45  
53 +(((
46 46  Schematic diagram:downlink.In this section, we will try to program LG01 to fetch download data from ThingSpeak, then broadcast this data to local LoRa network. The end node will get this message and check if they need to do something. Similar with Uplink Example, we will first try to do it in PC, then do it in Linux side, and finally integrate it with LoRa.
55 +)))
47 47  
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48 48  MQTT agreement to achieve the need: client and server There are three identities in the MQTT protocol: Publish, Broker (server), Subscribe. Among them, the publisher and the subscriber of the message are all clients, the broker is the server, and the publisher can be both the subscriber and the subscriber. MQTT transmission of information is divided into: Topic and payload in two parts Topic, can be understood as the type of message subscribers Subscribe, you will receive the theme of the message content (payload) The payload, which can be understood as the content of the message, refers to the specific content to be used by the subscribers.
59 +)))
49 49  
61 +(((
50 50  To use the server, we need to register an account on [[ThingSpeak>>url:https://thingspeak.com/]] . Then create a channel and type the channel info. As shown below, the Channel ID is the unique ID to store our data in [[ThingSpeak>>url:https://thingspeak.com/]] .
63 +)))
51 51  
52 52  
66 +
53 53  = 4. Preparation =
54 54  
55 55  == 4.1 Hardware ==
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64 64  The LoRa End node keeps getting temperature and humidity from the sensor and sends out via LoRa periodically.
65 65  )))
66 66  
67 -
68 68  == 4.2 Software ==
69 69  
70 70  1. [[4.3.4 version>>url:http://www.dragino.com/downloads/index.php?dir=motherboards/ms14/Firmware/IoT/]]
... ... @@ -72,12 +72,10 @@
72 72  1. [[MQTT_Simple_Server MQTT_Simeple_Server>>url:https://github.com/dragino/Arduino-Profile-Examples/tree/master/libraries/Dragino/examples/LoRa/MQTT_Simple_Server]]
73 73  1. [[DHTlib>>url:https://github.com/goodcheney/Lora/blob/patch-1/Lora%20Shield/Examples/DHTlib.zip]]
74 74  
75 -
76 76  == 4.3 Server(For example) ==
77 77  
78 78  * [[ThingSpeak>>url:https://thingspeak.com/]]
79 79  
80 -
81 81  == 4.4 Configure IoT Server ==
82 82  
83 83  * Need this keys:
... ... @@ -98,7 +98,6 @@
98 98  [[image:image-20220531140304-12.png]]
99 99  )))
100 100  
101 -
102 102  == 4.5 Configure LG01 settings ==
103 103  
104 104  Tips:Please confirm that your LG01 version is 4.3.3.
... ... @@ -105,75 +105,113 @@
105 105  
106 106  [[image:image-20220531140248-11.png]]
107 107  
108 -Overview
118 +**Overview**
109 109  
110 -[[~[~[image:https://wiki.dragino.com/images/thumb/f/f6/MQTT_LG01_Configure_1.png/400px-MQTT_LG01_Configure_1.png~|~|height="281" width="400"~]~]>>url:https://wiki.dragino.com/index.php/File:MQTT_LG01_Configure_1.png]]
111 111  
112 -Senosor->IOT Server
113 113  
114 -[[~[~[image:https://wiki.dragino.com/images/thumb/6/64/MQTT_LG01_Configure_2.png/400px-MQTT_LG01_Configure_2.png~|~|height="152" width="400"~]~]>>url:https://wiki.dragino.com/index.php/File:MQTT_LG01_Configure_2.png]]
122 +[[image:image-20220531140425-14.png]]
115 115  
116 -MQTT->Configure MQTT Server
124 +**Senosor->IOT Server**
117 117  
118 -[[~[~[image:https://wiki.dragino.com/images/thumb/6/6a/MQTT_LG01_Configure_3.png/400px-MQTT_LG01_Configure_3.png~|~|height="91" width="400"~]~]>>url:https://wiki.dragino.com/index.php/File:MQTT_LG01_Configure_3.png]]
119 119  
120 -MQTT->MQTT Channel
127 +[[image:image-20220531140458-15.png]]
121 121  
122 -[[~[~[image:https://wiki.dragino.com/images/thumb/3/36/MQTT_LG01_Configure_4.png/400px-MQTT_LG01_Configure_4.png~|~|height="257" width="400"~]~]>>url:https://wiki.dragino.com/index.php/File:MQTT_LG01_Configure_4.png]]
129 +**MQTT->Configure MQTT Server**
123 123  
124 -Sensor->LoRa/LoraWAN
125 125  
126 -[[~[~[image:https://wiki.dragino.com/images/thumb/6/61/MQTT_LG01_Configure_5.png/400px-MQTT_LG01_Configure_5.png~|~|height="230" width="400"~]~]>>url:https://wiki.dragino.com/index.php/File:MQTT_LG01_Configure_5.png]]
127 127  
128 -Configure network access.Network->Internet Access
133 +[[image:image-20220531140538-16.png]]
129 129  
135 +**MQTT->MQTT Channel**
130 130  
137 +
138 +
139 +[[image:image-20220531140611-17.png]]
140 +
141 +**Sensor->LoRa/LoraWAN**
142 +
143 +
144 +
145 +[[image:image-20220531140651-18.png]]
146 +
147 +Configure network access.**Network->Internet Access**
148 +
149 +
131 131  == 4.6 Try MQTT API call with LG01 Linux command ==
132 132  
133 133  === 4.6.1 Input the command at the console ===
134 134  
135 -1. [[~[~[image:https://wiki.dragino.com/images/8/84/3_1.png~|~|height="99" width="93"~]~]>>url:https://wiki.dragino.com/index.php/File:3_1.png]](((
154 +1. [[image:image-20220531140811-19.png]](((
136 136  Open this Application.
156 +
157 +
137 137  )))
138 -1. [[~[~[image:https://wiki.dragino.com/images/thumb/d/d7/3_2.png/400px-3_2.png~|~|height="230" width="400"~]~]>>url:https://wiki.dragino.com/index.php/File:3_2.png]](((
159 +1. [[image:image-20220531140842-20.png]](((
139 139  Input passward(dragino).After into the console.
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162 +
140 140  )))
141 -1. [[~[~[image:https://wiki.dragino.com/images/thumb/5/5d/3_5.png/400px-3_5.png~|~|height="310" width="400"~]~]>>url:https://wiki.dragino.com/index.php/File:3_5.png]](((
164 +1. [[image:image-20220531140915-21.png]](((
142 142  First, we need to make sure the LG01 has internet access. We can log in the SSH and ping an Internet address and see if it get through. As below
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167 +
143 143  )))
144 -1. [[~[~[image:https://wiki.dragino.com/images/thumb/6/63/3_3.png/400px-3_3.png~|~|height="213" width="400"~]~]>>url:https://wiki.dragino.com/index.php/File:3_3.png]](((
169 +1. [[image:image-20220531140955-22.png]](((
145 145  LG01 has built-in Linux tool mosquitto. It is a very powerful tool for http communication. We can use this tool to handle MQTT API call in LG01. Input this command and replace your keys.
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172 +
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146 146  )))
147 -1. [[~[~[image:https://wiki.dragino.com/images/thumb/3/35/3_4.png/500px-3_4.png~|~|height="180" width="500"~]~]>>url:https://wiki.dragino.com/index.php/File:3_4.png]](((
175 +1. [[image:image-20220531141026-23.png]](((
148 148  Go to Server check out result.We success to use LG01 to uplink data to ThingSpeak,the mosquitto_pub command is executed in the Linux side, finally, we will have to call mosquitto_pub command with sensor data variable in Arduino side. This is through the process class in Arduino and we will show it in the final sketch.
149 149  )))
150 150  
151 151  * This command:
152 152  
153 -{{{mosquitto_pub -h mqtt.thingspeak.com -p 1883 -u dragino -P UZ4NGHKJMKS9WR5E -i dragino_Client -t channels/399171/publish/A4NNF6G8G63JOIUV -m "field1=23.5&field2=57.5&status=MQTTPUBLISH"
154 -}}}
181 +(% class="box infomessage" %)
182 +(((
183 +**mosquitto_pub -h mqtt.thingspeak.com -p 1883 -u dragino -P UZ4NGHKJMKS9WR5E  -i dragino_Client -t channels/399171/publish/A4NNF6G8G63JOIUV -m "field1=23.5&field2=57.5&status=MQTTPUBLISH"**
184 +)))
155 155  
156 156  * Need replace:
157 157  
158 -{{{UZ4NGHKJMKS9WR5E //MQTT API
159 -399171 //Channel ID
160 -A4NNF6G8G63JOIUV //Write API Key
161 -}}}
188 +(% class="box infomessage" %)
189 +(((
190 +**UZ4NGHKJMKS9WR5E  ~/~/MQTT API
191 +399171            ~/~/Channel ID
192 +A4NNF6G8G63JOIUV  ~/~/Write API Key**
193 +)))
162 162  
163 163  
164 164  === 4.6.2 Input the command at the console(LG01 new version:4.3.4) ===
165 165  
166 -1. [[~[~[image:https://wiki.dragino.com/images/8/84/3_1.png~|~|height="99" width="93"~]~]>>url:https://wiki.dragino.com/index.php/File:3_1.png]](((
198 +1. [[image:image-20220531141150-24.png]](((
167 167  Open this Application.
200 +
201 +
202 +
168 168  )))
169 -1. [[~[~[image:https://wiki.dragino.com/images/thumb/6/6e/MQTT_Command_2.png/400px-MQTT_Command_2.png~|~|height="76" width="400"~]~]>>url:https://wiki.dragino.com/index.php/File:MQTT_Command_2.png]](((
204 +1. (((
205 +[[image:image-20220531141400-27.png]]
206 +
170 170  Check the settings.
208 +
209 +
210 +
171 171  )))
172 -1. [[~[~[image:https://wiki.dragino.com/images/thumb/8/8d/MQTT_Command_1.png/400px-MQTT_Command_1.png~|~|height="343" width="400"~]~]>>url:https://wiki.dragino.com/index.php/File:MQTT_Command_1.png]](((
212 +1. (((
213 +[[image:image-20220531141601-30.png]]
214 +
173 173  input this command.
216 +
217 +
218 +
174 174  )))
175 -1. [[~[~[image:https://wiki.dragino.com/images/thumb/d/de/MQTT_Command_3.png/400px-MQTT_Command_3.png~|~|height="207" width="400"~]~]>>url:https://wiki.dragino.com/index.php/File:MQTT_Command_3.png]](((
220 +1. [[image:image-20220531141515-29.png]](((
176 176  Check the result.
222 +
223 +
224 +
177 177  )))
178 178  
179 179  == 4.7 Updata data to Server(Through MQTT) ==
... ... @@ -185,25 +185,42 @@
185 185  1. Send reply after then receive LoRa node data.
186 186  1. Sketch will write active content to /tmp/iot/status periodically (every 5 minutes).(Watchdog feature)
187 187  
188 -
189 -1. [[~[~[image:https://wiki.dragino.com/images/thumb/8/82/MQTT_Sketch_2.png/400px-MQTT_Sketch_2.png~|~|height="233" width="400"~]~]>>url:https://wiki.dragino.com/index.php/File:MQTT_Sketch_2.png]](((
236 +1. [[image:image-20220531141656-31.png]](((
190 190  Open the sketch [[MQTT_Simple_Server>>url:https://github.com/dragino/Arduino-Profile-Examples/tree/master/libraries/Dragino/examples/LoRa/MQTT_Simple_Server]].(Board:Dragino Yun + UNO or LG01/OLG01,Port:Network ports.)and upload.
238 +
239 +
240 +
191 191  )))
192 -1. [[~[~[image:https://wiki.dragino.com/images/thumb/7/73/MQTT_Sketch2.png/400px-MQTT_Sketch2.png~|~|height="540" width="400"~]~]>>url:https://wiki.dragino.com/index.php/File:MQTT_Sketch2.png]](((
242 +1. [[image:image-20220531141800-32.png]](((
193 193  Open Serial monitor.
244 +
245 +
246 +
194 194  )))
195 -1. [[~[~[image:https://wiki.dragino.com/images/thumb/9/98/MQTT_Sketch_1.png/400px-MQTT_Sketch_1.png~|~|height="261" width="400"~]~]>>url:https://wiki.dragino.com/index.php/File:MQTT_Sketch_1.png]](((
248 +1. [[image:image-20220531141842-33.png]](((
196 196  Open the Sketch [[MQTT_Client>>url:https://github.com/dragino/Arduino-Profile-Examples/tree/master/libraries/Dragino/examples/IoTServer/ThingSpeak/MQTT_Client]]. (Board:Arduino/Genuino Uno.Port:Serial ports.)and upload.
250 +
251 +
252 +
197 197  )))
198 -1. [[~[~[image:https://wiki.dragino.com/images/thumb/3/3d/MQTT_Sketch3.png/400px-MQTT_Sketch3.png~|~|height="371" width="400"~]~]>>url:https://wiki.dragino.com/index.php/File:MQTT_Sketch3.png]](((
254 +1. [[image:image-20220531141927-34.png]](((
199 199  Open Serial monitor.
256 +
257 +
258 +
200 200  )))
201 201  1. Go to IoT Server to check the result.
202 202  1. (((
203 -[[~[~[image:https://wiki.dragino.com/images/thumb/4/43/MQTT_result_1.png/400px-MQTT_result_1.png~|~|alt="MQTT result 1.png" height="181" width="400"~]~]>>url:https://wiki.dragino.com/index.php/File:MQTT_result_1.png]]
262 +[[image:image-20220531142023-35.png]]
263 +
264 +
265 +
204 204  )))
205 205  1. (((
206 -[[~[~[image:https://wiki.dragino.com/images/thumb/7/70/MQTT_result_2.png/400px-MQTT_result_2.png~|~|alt="MQTT result 2.png" height="190" width="400"~]~]>>url:https://wiki.dragino.com/index.php/File:MQTT_result_2.png]]
268 +[[image:image-20220531142155-36.png]]
269 +
270 +
271 +
207 207  )))
208 208  
209 209  = 5. FAQ =
... ... @@ -214,18 +214,25 @@
214 214  
215 215  For example: for ThingSpeak, a MQTT publish command is:
216 216  
217 -{{{mosquitto_pub -h mqtt.thingspeak.com -p 1883 -u dragino -P QZXTAKE88V3S7O2J -i dragino_Client -t channels/200893/publish/B9Z0R25QNVEBKIFY -m "field1=34&field2=89&status=MQTTPUBLISH"
218 -}}}
282 +(% class="box infomessage" %)
283 +(((
284 +**mosquitto_pub -h mqtt.thingspeak.com -p 1883 -u dragino -P QZXTAKE88V3S7O2J  -i dragino_Client -t channels/200893/publish/B9Z0R25QNVEBKIFY -m "field1=34&field2=89&status=MQTTPUBLISH"**
285 +)))
219 219  
220 220  What now we need to put in the LG01 is how to combine this command.
221 221  
222 222  1. LG01 web console -> Sensor -> MQTT
223 223  1. Choose general Server
224 -1. [[~[~[image:https://wiki.dragino.com/images/thumb/e/ea/MQTT_Configure1.png/600px-MQTT_Configure1.png~|~|height="367" width="600"~]~]>>url:https://wiki.dragino.com/index.php/File:MQTT_Configure1.png]](((
291 +1. [[image:image-20220531142342-37.png]](((
225 225  Refer to your server to fill in.
293 +
294 +
295 +
226 226  )))
227 -1. [[~[~[image:https://wiki.dragino.com/images/0/07/MQTT_Configure2.png~|~|height="93" width="538"~]~]>>url:https://wiki.dragino.com/index.php/File:MQTT_Configure2.png]](((
297 +1. [[image:image-20220531142447-38.png]](((
228 228  Ex:ThingSpeak Server
299 +
300 +
229 229  )))
230 230  
231 231  According to MQTT commands: mosquitto_pub, we need to put
... ... @@ -244,7 +244,7 @@
244 244  
245 245  User can also enable MQTT debug in the LG01 ~-~-> IoT Server settings and run logread in Linux console to see how the mqtt command is compose. below is an example:
246 246  
247 -[[~[~[image:https://wiki.dragino.com/images/thumb/8/81/MQTT_Configure3.png/600px-MQTT_Configure3.png~|~|height="114" width="600"~]~]>>url:https://wiki.dragino.com/index.php/File:MQTT_Configure3.png]]
319 +[[image:image-20220531142525-39.png]]
248 248  
249 249  MQTT Logread example
250 250  
... ... @@ -253,20 +253,33 @@
253 253  
254 254  LG01 for 4.3.3 version,we have added watchdog feature. In order to avoid the gateway running process will get stuck. So add writing action on every times.
255 255  
256 -* [[~[~[image:https://wiki.dragino.com/images/thumb/f/f2/Wathcdog.png/400px-Wathcdog.png~|~|height="184" width="400"~]~]>>url:https://wiki.dragino.com/index.php/File:Wathcdog.png]](((
328 +* [[image:image-20220531142558-40.png]](((
257 257  Enable Sensor->Micro-Controller settings
330 +
331 +
332 +
258 258  )))
259 -* [[~[~[image:https://wiki.dragino.com/images/thumb/8/82/MQTT_Sketch_2.png/400px-MQTT_Sketch_2.png~|~|height="233" width="400"~]~]>>url:https://wiki.dragino.com/index.php/File:MQTT_Sketch_2.png]](((
334 +* [[image:image-20220531142629-41.png]](((
260 260  Open the sketch [[MQTT_Simple_Server>>url:https://github.com/dragino/Arduino-Profile-Examples/tree/master/libraries/Dragino/examples/LoRa/MQTT_Simple_Server]].(Board:Dragino Yun + UNO or LG01/OLG01,Port:Network ports.)and upload.
336 +
337 +
338 +
261 261  )))
262 -* [[~[~[image:https://wiki.dragino.com/images/2/21/Loop.png~|~|height="181" width="388"~]~]>>url:https://wiki.dragino.com/index.php/File:Loop.png]](((
340 +* [[image:image-20220531142659-42.png]](((
263 263  Each time the function loops, it uses the watchdog function once.
342 +
343 +
344 +
264 264  )))
265 -* [[~[~[image:https://wiki.dragino.com/images/thumb/3/35/Dog.png/400px-Dog.png~|~|height="161" width="400"~]~]>>url:https://wiki.dragino.com/index.php/File:Dog.png]](((
346 +* [[image:image-20220531142720-43.png]](((
266 266  Open SSH and check watchdog result.If the result change constantly,the feature enable successfully.
348 +
349 +
350 +
267 267  )))
268 -* [[~[~[image:https://wiki.dragino.com/images/thumb/a/ac/Checkdog.png/400px-Checkdog.png~|~|height="222" width="400"~]~]>>url:https://wiki.dragino.com/index.php/File:Checkdog.png]](((
352 +* [[image:image-20220531142748-44.png]](((
269 269  If the time doesnt's change,you can refer it to calculate for checking status.
270 270  )))
271 271  
272 -== ==
356 +(% class="wikigeneratedid" id="H" %)
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