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Last modified by Xiaoling on 2022/09/02 18:11
From version 16.1
edited by Xiaoling
on 2022/05/31 14:04
Change comment: Uploaded new attachment "image-20220531140458-15.png", version {1}
To version 48.1
edited by Xiaoling
on 2022/05/31 14:37
Change comment: Uploaded new attachment "image-20220531143748-48.png", version {1}

Summary

Details

Page properties
Content
... ... @@ -1,3 +1,5 @@
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  
57 +(((
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/]]
... ... @@ -73,11 +73,13 @@
73 73  1. [[DHTlib>>url:https://github.com/goodcheney/Lora/blob/patch-1/Lora%20Shield/Examples/DHTlib.zip]]
74 74  
75 75  
89 +
76 76  == 4.3 Server(For example) ==
77 77  
78 78  * [[ThingSpeak>>url:https://thingspeak.com/]]
79 79  
80 80  
95 +
81 81  == 4.4 Configure IoT Server ==
82 82  
83 83  * Need this keys:
... ... @@ -96,87 +96,125 @@
96 96  )))
97 97  1. (((
98 98  [[image:image-20220531140304-12.png]]
99 -)))
100 100  
101 101  
116 +
117 +)))
118 +
102 102  == 4.5 Configure LG01 settings ==
103 103  
121 +
104 104  Tips:Please confirm that your LG01 version is 4.3.3.
105 105  
106 106  [[image:image-20220531140248-11.png]]
107 107  
108 -Overview
126 +**Overview**
109 109  
110 110  
111 111  
112 112  [[image:image-20220531140425-14.png]]
113 113  
114 -Senosor->IOT Server
132 +**Senosor->IOT Server**
115 115  
116 116  
117 -[[~[~[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]]
135 +[[image:image-20220531140458-15.png]]
118 118  
119 -MQTT->Configure MQTT Server
137 +**MQTT->Configure MQTT Server**
120 120  
121 -[[~[~[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]]
122 122  
123 -MQTT->MQTT Channel
124 124  
125 -[[~[~[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]]
141 +[[image:image-20220531140538-16.png]]
126 126  
127 -Sensor->LoRa/LoraWAN
143 +**MQTT->MQTT Channel**
128 128  
129 -[[~[~[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]]
130 130  
131 -Configure network access.Network->Internet Access
132 132  
147 +[[image:image-20220531140611-17.png]]
133 133  
149 +**Sensor->LoRa/LoraWAN**
150 +
151 +
152 +
153 +[[image:image-20220531140651-18.png]]
154 +
155 +Configure network access.**Network->Internet Access**
156 +
157 +
134 134  == 4.6 Try MQTT API call with LG01 Linux command ==
135 135  
136 136  === 4.6.1 Input the command at the console ===
137 137  
138 -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]](((
162 +1. [[image:image-20220531140811-19.png]](((
139 139  Open this Application.
164 +
165 +
140 140  )))
141 -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]](((
167 +1. [[image:image-20220531140842-20.png]](((
142 142  Input passward(dragino).After into the console.
169 +
170 +
143 143  )))
144 -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]](((
172 +1. [[image:image-20220531140915-21.png]](((
145 145  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
174 +
175 +
146 146  )))
147 -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]](((
177 +1. [[image:image-20220531140955-22.png]](((
148 148  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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180 +
181 +
149 149  )))
150 -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]](((
183 +1. [[image:image-20220531141026-23.png]](((
151 151  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.
152 152  )))
153 153  
154 154  * This command:
155 155  
156 -{{{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"
157 -}}}
189 +(% class="box infomessage" %)
190 +(((
191 +**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"**
192 +)))
158 158  
159 159  * Need replace:
160 160  
161 -{{{UZ4NGHKJMKS9WR5E //MQTT API
162 -399171 //Channel ID
163 -A4NNF6G8G63JOIUV //Write API Key
164 -}}}
196 +(% class="box infomessage" %)
197 +(((
198 +**UZ4NGHKJMKS9WR5E  ~/~/MQTT API
199 +399171            ~/~/Channel ID
200 +A4NNF6G8G63JOIUV  ~/~/Write API Key**
201 +)))
165 165  
166 166  
167 167  === 4.6.2 Input the command at the console(LG01 new version:4.3.4) ===
168 168  
169 -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]](((
206 +1. [[image:image-20220531141150-24.png]](((
170 170  Open this Application.
208 +
209 +
210 +
171 171  )))
172 -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]](((
212 +1. (((
213 +[[image:image-20220531141400-27.png]]
214 +
173 173  Check the settings.
216 +
217 +
218 +
174 174  )))
175 -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]](((
220 +1. (((
221 +[[image:image-20220531141601-30.png]]
222 +
176 176  input this command.
224 +
225 +
226 +
177 177  )))
178 -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]](((
228 +1. [[image:image-20220531141515-29.png]](((
179 179  Check the result.
230 +
231 +
232 +
180 180  )))
181 181  
182 182  == 4.7 Updata data to Server(Through MQTT) ==
... ... @@ -188,25 +188,42 @@
188 188  1. Send reply after then receive LoRa node data.
189 189  1. Sketch will write active content to /tmp/iot/status periodically (every 5 minutes).(Watchdog feature)
190 190  
191 -
192 -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]](((
244 +1. [[image:image-20220531141656-31.png]](((
193 193  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.
246 +
247 +
248 +
194 194  )))
195 -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]](((
250 +1. [[image:image-20220531141800-32.png]](((
196 196  Open Serial monitor.
252 +
253 +
254 +
197 197  )))
198 -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]](((
256 +1. [[image:image-20220531141842-33.png]](((
199 199  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.
258 +
259 +
260 +
200 200  )))
201 -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]](((
262 +1. [[image:image-20220531141927-34.png]](((
202 202  Open Serial monitor.
264 +
265 +
266 +
203 203  )))
204 204  1. Go to IoT Server to check the result.
205 205  1. (((
206 -[[~[~[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]]
270 +[[image:image-20220531143707-47.png]]
271 +
272 +
273 +
207 207  )))
208 208  1. (((
209 -[[~[~[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]]
276 +[[image:image-20220531143632-46.png]]
277 +
278 +
279 +
210 210  )))
211 211  
212 212  = 5. FAQ =
... ... @@ -217,18 +217,25 @@
217 217  
218 218  For example: for ThingSpeak, a MQTT publish command is:
219 219  
220 -{{{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"
221 -}}}
290 +(% class="box infomessage" %)
291 +(((
292 +**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"**
293 +)))
222 222  
223 223  What now we need to put in the LG01 is how to combine this command.
224 224  
225 225  1. LG01 web console -> Sensor -> MQTT
226 226  1. Choose general Server
227 -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]](((
299 +1. [[image:image-20220531142342-37.png]](((
228 228  Refer to your server to fill in.
301 +
302 +
303 +
229 229  )))
230 -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]](((
305 +1. [[image:image-20220531142447-38.png]](((
231 231  Ex:ThingSpeak Server
307 +
308 +
232 232  )))
233 233  
234 234  According to MQTT commands: mosquitto_pub, we need to put
... ... @@ -247,7 +247,7 @@
247 247  
248 248  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:
249 249  
250 -[[~[~[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]]
327 +[[image:image-20220531142525-39.png]]
251 251  
252 252  MQTT Logread example
253 253  
... ... @@ -256,20 +256,33 @@
256 256  
257 257  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.
258 258  
259 -* [[~[~[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]](((
336 +* [[image:image-20220531142558-40.png]](((
260 260  Enable Sensor->Micro-Controller settings
338 +
339 +
340 +
261 261  )))
262 -* [[~[~[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]](((
342 +* [[image:image-20220531142629-41.png]](((
263 263  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.
344 +
345 +
346 +
264 264  )))
265 -* [[~[~[image:https://wiki.dragino.com/images/2/21/Loop.png~|~|height="181" width="388"~]~]>>url:https://wiki.dragino.com/index.php/File:Loop.png]](((
348 +* [[image:image-20220531142659-42.png]](((
266 266  Each time the function loops, it uses the watchdog function once.
350 +
351 +
352 +
267 267  )))
268 -* [[~[~[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]](((
354 +* [[image:image-20220531142720-43.png]](((
269 269  Open SSH and check watchdog result.If the result change constantly,the feature enable successfully.
356 +
357 +
358 +
270 270  )))
271 -* [[~[~[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]](((
360 +* [[image:image-20220531142748-44.png]](((
272 272  If the time doesnt's change,you can refer it to calculate for checking status.
273 273  )))
274 274  
275 -== ==
364 +(% class="wikigeneratedid" id="H" %)
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