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Last modified by Xiaoling on 2022/09/02 18:11
From version 6.1
edited by Xiaoling
on 2022/05/31 13:56
Change comment: Uploaded new attachment "image-20220531135650-5.png", version {1}
To version 45.1
edited by Xiaoling
on 2022/05/31 14:36
Change comment: Uploaded new attachment "image-20220531143604-45.png", version {1}

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  
... ... @@ -37,31 +37,42 @@
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.
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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.
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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.
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49 49  
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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/]] .
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51 51  
52 52  
66 +
53 53  = 4. Preparation =
54 54  
55 55  == 4.1 Hardware ==
56 56  
57 -1. [[~[~[image:https://wiki.dragino.com/images/thumb/f/fb/2.png/300px-2.png~|~|height="283" width="300"~]~]>>url:https://wiki.dragino.com/index.php/File:2.png]](((
71 +1. [[image:image-20220531135650-5.png]](((
58 58  Listening on the LoRa wireless channel, while there is new LoRa packet arrives, parse it and send out to IoT Server.
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74 +
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59 59  )))
60 -1. [[~[~[image:https://wiki.dragino.com/images/thumb/4/4a/1.png/400px-1.png~|~|height="216" width="400"~]~]>>url:https://wiki.dragino.com/index.php/File:1.png]](((
77 +1. [[image:image-20220531135750-6.png]](((
61 61  The LoRa End node keeps getting temperature and humidity from the sensor and sends out via LoRa periodically.
62 62  )))
63 63  
64 -
65 65  == 4.2 Software ==
66 66  
67 67  1. [[4.3.4 version>>url:http://www.dragino.com/downloads/index.php?dir=motherboards/ms14/Firmware/IoT/]]
... ... @@ -76,96 +76,144 @@
76 76  * [[ThingSpeak>>url:https://thingspeak.com/]]
77 77  
78 78  
95 +
79 79  == 4.4 Configure IoT Server ==
80 80  
81 81  * Need this keys:
82 82  
83 -1. [[~[~[image:https://wiki.dragino.com/images/thumb/b/bc/Server1.png/400px-Server1.png~|~|height="185" width="400"~]~]>>url:https://wiki.dragino.com/index.php/File:Server1.png]](((
100 +1. [[image:image-20220531140054-8.png]](((
84 84  Channel ID,Write API Key
102 +
103 +
104 +
85 85  )))
86 -1. [[~[~[image:https://wiki.dragino.com/images/thumb/e/e2/Server2.png/400px-Server2.png~|~|height="128" width="400"~]~]>>url:https://wiki.dragino.com/index.php/File:Server2.png]](((
106 +1. [[image:image-20220531140326-13.png]](((
87 87  Account->My Profile,MQTT API Key
108 +
109 +
110 +
88 88  )))
89 89  1. (((
90 -[[~[~[image:https://wiki.dragino.com/images/thumb/f/f3/IOT_Configure1.png/400px-IOT_Configure1.png~|~|alt="IOT Configure1.png" height="132" width="400"~]~]>>url:https://wiki.dragino.com/index.php/File:IOT_Configure1.png]]
91 -)))
113 +[[image:image-20220531140304-12.png]]
92 92  
93 93  
116 +
117 +)))
118 +
94 94  == 4.5 Configure LG01 settings ==
95 95  
121 +
96 96  Tips:Please confirm that your LG01 version is 4.3.3.
97 97  
98 -[[~[~[image:https://wiki.dragino.com/images/thumb/e/eb/LG01_Version.png/400px-LG01_Version.png~|~|height="219" width="400"~]~]>>url:https://wiki.dragino.com/index.php/File:LG01_Version.png]]
124 +[[image:image-20220531140248-11.png]]
99 99  
100 -Overview
126 +**Overview**
101 101  
102 -[[~[~[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]]
103 103  
104 -Senosor->IOT Server
105 105  
106 -[[~[~[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]]
130 +[[image:image-20220531140425-14.png]]
107 107  
108 -MQTT->Configure MQTT Server
132 +**Senosor->IOT Server**
109 109  
110 -[[~[~[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]]
111 111  
112 -MQTT->MQTT Channel
135 +[[image:image-20220531140458-15.png]]
113 113  
114 -[[~[~[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]]
137 +**MQTT->Configure MQTT Server**
115 115  
116 -Sensor->LoRa/LoraWAN
117 117  
118 -[[~[~[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]]
119 119  
120 -Configure network access.Network->Internet Access
141 +[[image:image-20220531140538-16.png]]
121 121  
143 +**MQTT->MQTT Channel**
122 122  
145 +
146 +
147 +[[image:image-20220531140611-17.png]]
148 +
149 +**Sensor->LoRa/LoraWAN**
150 +
151 +
152 +
153 +[[image:image-20220531140651-18.png]]
154 +
155 +Configure network access.**Network->Internet Access**
156 +
157 +
123 123  == 4.6 Try MQTT API call with LG01 Linux command ==
124 124  
125 125  === 4.6.1 Input the command at the console ===
126 126  
127 -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]](((
128 128  Open this Application.
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165 +
129 129  )))
130 -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]](((
131 131  Input passward(dragino).After into the console.
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132 132  )))
133 -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]](((
134 134  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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135 135  )))
136 -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]](((
137 137  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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138 138  )))
139 -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]](((
140 140  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.
141 141  )))
142 142  
143 143  * This command:
144 144  
145 -{{{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"
146 -}}}
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 +)))
147 147  
148 148  * Need replace:
149 149  
150 -{{{UZ4NGHKJMKS9WR5E //MQTT API
151 -399171 //Channel ID
152 -A4NNF6G8G63JOIUV //Write API Key
153 -}}}
196 +(% class="box infomessage" %)
197 +(((
198 +**UZ4NGHKJMKS9WR5E  ~/~/MQTT API
199 +399171            ~/~/Channel ID
200 +A4NNF6G8G63JOIUV  ~/~/Write API Key**
201 +)))
154 154  
155 155  
156 156  === 4.6.2 Input the command at the console(LG01 new version:4.3.4) ===
157 157  
158 -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]](((
159 159  Open this Application.
208 +
209 +
210 +
160 160  )))
161 -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 +
162 162  Check the settings.
216 +
217 +
218 +
163 163  )))
164 -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 +
165 165  input this command.
224 +
225 +
226 +
166 166  )))
167 -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]](((
168 168  Check the result.
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231 +
232 +
169 169  )))
170 170  
171 171  == 4.7 Updata data to Server(Through MQTT) ==
... ... @@ -177,25 +177,42 @@
177 177  1. Send reply after then receive LoRa node data.
178 178  1. Sketch will write active content to /tmp/iot/status periodically (every 5 minutes).(Watchdog feature)
179 179  
180 -
181 -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]](((
182 182  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 +
183 183  )))
184 -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]](((
185 185  Open Serial monitor.
252 +
253 +
254 +
186 186  )))
187 -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]](((
188 188  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 +
189 189  )))
190 -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]](((
191 191  Open Serial monitor.
264 +
265 +
266 +
192 192  )))
193 193  1. Go to IoT Server to check the result.
194 194  1. (((
195 -[[~[~[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-20220531142023-35.png]]
271 +
272 +
273 +
196 196  )))
197 197  1. (((
198 -[[~[~[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-20220531142155-36.png]]
277 +
278 +
279 +
199 199  )))
200 200  
201 201  = 5. FAQ =
... ... @@ -206,18 +206,25 @@
206 206  
207 207  For example: for ThingSpeak, a MQTT publish command is:
208 208  
209 -{{{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"
210 -}}}
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 +)))
211 211  
212 212  What now we need to put in the LG01 is how to combine this command.
213 213  
214 214  1. LG01 web console -> Sensor -> MQTT
215 215  1. Choose general Server
216 -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]](((
217 217  Refer to your server to fill in.
301 +
302 +
303 +
218 218  )))
219 -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]](((
220 220  Ex:ThingSpeak Server
307 +
308 +
221 221  )))
222 222  
223 223  According to MQTT commands: mosquitto_pub, we need to put
... ... @@ -236,7 +236,7 @@
236 236  
237 237  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:
238 238  
239 -[[~[~[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]]
240 240  
241 241  MQTT Logread example
242 242  
... ... @@ -245,20 +245,33 @@
245 245  
246 246  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.
247 247  
248 -* [[~[~[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]](((
249 249  Enable Sensor->Micro-Controller settings
338 +
339 +
340 +
250 250  )))
251 -* [[~[~[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]](((
252 252  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 +
253 253  )))
254 -* [[~[~[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]](((
255 255  Each time the function loops, it uses the watchdog function once.
350 +
351 +
352 +
256 256  )))
257 -* [[~[~[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]](((
258 258  Open SSH and check watchdog result.If the result change constantly,the feature enable successfully.
356 +
357 +
358 +
259 259  )))
260 -* [[~[~[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]](((
261 261  If the time doesnt's change,you can refer it to calculate for checking status.
262 262  )))
263 263  
264 -== ==
364 +(% class="wikigeneratedid" id="H" %)
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