Changes for page Node-RED_Install and Use

Last modified by Herong Lu on 2024/03/05 08:37
<
From version < 16.1 >
edited by Edwin Chen
on 2022/05/25 15:34
To version < 37.7 >
edited by Xiaoling
on 2022/07/25 16:02
>
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1 +XWiki.Xiaoling
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1 1  (% class="wikigeneratedid" id="HEndDeviceFrequencyBand" %)
2 - **Contents：**
2 + **Table of** **Contents：**
3 3  
4 4  {{toc/}}
5 5  
6 -= Installation =
7 7  
7 +
8 +
9 += 1.  Installation =
10 +
11 +
8 8  Check installation instruction for different OS from this link: [[https:~~/~~/nodered.org/docs/getting-started/>>https://nodered.org/docs/getting-started/]]
9 9  
10 -== Install Example for CENTOS ==
11 11  
12 -=== Installation ===
13 13  
16 +== 1.1  Install Example for CENTOS ==
17 +
18 +
19 +=== 1.1.1  Installation ===
20 +
21 +
14 14  (% class="box infomessage" %)
15 15  (((
16 -Reference Instruction from this link: ~_~_~_~_~_~_~_~_~_~_~_~_~_~__-
24 +Reference Instruction from this link:  [[https:~~/~~/github.com/node-red/linux-installers>>https://github.com/node-red/linux-installers]]
17 17  Run below commands and wait for installation complete.
18 18  )))
19 19  
20 -[[image:image-20220519102228-2.png]]
28 +[[image:image-20220526161040-1.png]]
21 21  
22 -**Verify if the installation was successful**
23 23  
24 -Type in the command line interface  node-red  
31 +(% style="color:blue" %)**Verify if the installation was successful**
25 25  
33 +Type in the command line interface ** (% style="color:red" %)node-red(%%)**(% style="color:red" %)  
34 +
26 26  The following information appears to prove that the installation has been successful
27 27  
28 -[[image:image-20220519103318-3.png]]
37 +[[image:image-20220526161103-2.png]]
29 29  
30 30  
31 -=== If you want to start Node-RED as a background process ===
32 32  
33 -Type in the command line interface  nohup node-red &
41 +=== 1.1.2  If you want to start Node-RED as a background process ===
34 34  
43 +
44 +Type in the command line interface  (% style="color:red" %)**nohup node-red &**
45 +
35 35  It will prompt after startup
36 36  
37 37  [[image:image-20220519104601-5.png]]
38 38  
39 -After seeing the above information, press enter
50 +After seeing the above information, press **enter**
40 40  
41 41  Type in the command line  exit
42 42  
43 43  The above is the installation and startup process of nodered. If you don't understand anything, you can go to the nodered official website. There are installation instructions for various systems. The address has a link at the top
44 44  
45 -== Install in Dragino Gataway ==
46 46  
47 47  
48 -= Use Node-RED =
58 +== 1.2  Install in Dragino Gataway ==
49 49  
50 -== Login to Node-RED interface ==
51 51  
61 +
62 += 2.  Use Node-RED =
63 +
64 +
65 +== 2.1  Login to Node-RED interface ==
66 +
67 +
52 52  Enter your public IP address followed by the port number 1880
53 53  
54 54  example：[[http:~~/~~/xxx.xx.xx.xx:1880/>>http://119.91.62.30:1880/]]
55 55  
56 -[[image:image-20220519104115-4.png]]
72 +[[image:image-20220519104115-4.png||height="352" width="969"]]
57 57  
58 58  
59 -== Get data from LoRaWAN Server (TTN) ==
60 60  
76 +== 2.2  Add flow ==
61 61  
62 -== Add Sensor & Payload ==
63 63  
79 +Take NBSN95 mod1 UDP protocol as an example
64 64  
65 -== Plot Chart for sensors ==
81 +After logging into the interface click** (% style="color:red" %)"+" (%%)**to create a flow
66 66  
83 +[[image:http://8.211.40.43:8080/xwiki/bin/download/Main/Node-RED/node_red%20usage%20example/WebHome/image-20220519133634-1.png?rev=1.1||alt="image-20220519133634-1.png" height="231" width="972"]]
67 67  
68 -== Store Value ==
69 69  
70 70  
71 -== Email Notification ==
87 +Rename the stream
88 +
89 +[[image:http://8.211.40.43:8080/xwiki/bin/download/Main/Node-RED/node_red%20usage%20example/WebHome/image-20220519134042-2.png?rev=1.1||alt="image-20220519134042-2.png" height="552" width="565"]]
90 +
91 +[[image:http://8.211.40.43:8080/xwiki/bin/download/Main/Node-RED/node_red%20usage%20example/WebHome/image-20220519134318-3.png?rev=1.1||alt="image-20220519134318-3.png"]]
92 +
93 +[[image:http://8.211.40.43:8080/xwiki/bin/download/Main/Node-RED/node_red%20usage%20example/WebHome/image-20220519134346-4.png?rev=1.1||alt="image-20220519134346-4.png"]]
94 +
95 +Drag UDP into the editing area
96 +
97 +
98 +
99 +[[image:http://8.211.40.43:8080/xwiki/bin/download/Main/Node-RED/node_red%20usage%20example/WebHome/image-20220519134533-5.png?rev=1.1||alt="image-20220519134533-5.png"]]
100 +
101 +
102 +The same method as above, drag and drop functions and debug into the editing area
103 +
104 +[[image:http://8.211.40.43:8080/xwiki/bin/download/Main/Node-RED/node_red%20usage%20example/WebHome/image-20220519134850-6.png?rev=1.1||alt="image-20220519134850-6.png"]]
105 +
106 +
107 +
108 +configure UDP in
109 +
110 +[[image:http://8.211.40.43:8080/xwiki/bin/download/Main/Node-RED/node_red%20usage%20example/WebHome/image-20220519135402-7.png?rev=1.1||alt="image-20220519135402-7.png"]]
111 +
112 +
113 +Write to the UDP port that the device node sends to the server
114 +
115 +Example My UDP device node sends to server port 8585
116 +just write 8585
117 +
118 +
119 +(% style="color:red" %)**Note: that the port that is already in use cannot be used. If the receiving fails, you need to check whether the port of the server is occupied. The sending port of the device node should not use the default port used by the server, such as a common port such as 8080.**
120 +
121 +
122 +In order to avoid data confusion, different types of nodes do not use the same UDP port, because different nodes have different data formats and different functions.
123 +
124 +[[image:http://8.211.40.43:8080/xwiki/bin/download/Main/Node-RED/node_red%20usage%20example/WebHome/image-20220519135915-8.png?rev=1.1||alt="image-20220519135915-8.png"]]
125 +
126 +
127 +[[image:http://8.211.40.43:8080/xwiki/bin/download/Main/Node-RED/node_red%20usage%20example/WebHome/image-20220519144651-14.png?rev=1.1||alt="image-20220519144651-14.png"]]
128 +
129 +
130 +[[image:http://8.211.40.43:8080/xwiki/bin/download/Main/Node-RED/node_red%20usage%20example/WebHome/image-20220519141355-11.png?rev=1.1||alt="image-20220519141355-11.png"]]
131 +
132 +
133 +[[image:http://8.211.40.43:8080/xwiki/bin/download/Main/Node-RED/node_red%20usage%20example/WebHome/image-20220519141704-12.png?rev=1.1||alt="image-20220519141704-12.png"]]
134 +
135 +
136 +
137 +When the node successfully sends data, the effect shown in the following figure will appear
138 +
139 +[[image:http://8.211.40.43:8080/xwiki/bin/download/Main/Node-RED/node_red%20usage%20example/WebHome/image-20220519150455-15.png?rev=1.1||alt="image-20220519150455-15.png"]]
140 +
141 +
142 +
143 +=== 2.2.1  About function ===
144 +
145 +
146 +If you are familiar with JS code, you can write it yourself
147 +If you are not familiar, we have the JS code for each type of node, you just need to copy and paste it into it
148 +
149 +
150 +[[image:http://8.211.40.43:8080/xwiki/bin/download/Main/Node-RED/node_red%20usage%20example/WebHome/image-20220519141833-13.png?rev=1.1||alt="image-20220519141833-13.png"]]
151 +
152 +
153 +
154 +== 2.3  Plot Chart for sensors ==
155 +
156 +
157 +If you need data visualization, please refer to the following
158 +
159 +
160 +[[image:http://8.211.40.43:8080/xwiki/bin/download/Main/Node-RED/node_red%20usage%20example/WebHome/image-20220519152802-16.png?rev=1.1||alt="image-20220519152802-16.png"]]
161 +
162 +
163 +
164 +(% style="color:blue" %)**1. Click Install
165 +2. Search the dashboard
166 +3. Click Install**
167 +
168 +
169 +
170 +[[image:http://8.211.40.43:8080/xwiki/bin/download/Main/Node-RED/node_red%20usage%20example/WebHome/image-20220519152956-17.png?rev=1.1||alt="image-20220519152956-17.png"]]
171 +
172 +
173 +
174 +After the installation is successful, nodered will show the following node icon
175 +
176 +[[image:http://8.211.40.43:8080/xwiki/bin/download/Main/Node-RED/node_red%20usage%20example/WebHome/image-20220519153335-19.png?rev=1.1||alt="image-20220519153335-19.png"]]
177 +
178 +
179 +
180 +=== 2.3.1  the line chart as an example ===
181 +
182 +
183 +Drag the line chart to the editing area
184 +
185 +Just drag and drop as many as you need, or you can copy
186 +
187 +The demo uses 3 kinds. Voltage, temperature, humidity
188 +
189 +
190 +[[image:http://8.211.40.43:8080/xwiki/bin/download/Main/Node-RED/node_red%20usage%20example/WebHome/image-20220519154521-20.png?rev=1.1||alt="image-20220519154521-20.png"]]
191 +
192 +
193 +
194 +double click function
195 +
196 +
197 +[[image:http://8.211.40.43:8080/xwiki/bin/download/Main/Node-RED/node_red%20usage%20example/WebHome/image-20220519154640-21.png?rev=1.1||alt="image-20220519154640-21.png"]]
198 +
199 +
200 +
201 +Adjusted to 3, because we need to display 3 charts
202 +
203 +
204 +[[image:http://8.211.40.43:8080/xwiki/bin/download/Main/Node-RED/node_red%20usage%20example/WebHome/image-20220519154812-22.png?rev=1.1||alt="image-20220519154812-22.png"]]
205 +
206 +
207 +
208 +=== 2.3.2  the chart settings ===
209 +
210 +
211 +Double-click while setting up the node as above
212 +
213 +
214 +[[image:http://8.211.40.43:8080/xwiki/bin/download/Main/Node-RED/node_red%20usage%20example/WebHome/image-20220519160314-23.png?rev=1.1||alt="image-20220519160314-23.png"]]
215 +
216 +
217 +[[image:http://8.211.40.43:8080/xwiki/bin/download/Main/Node-RED/node_red%20usage%20example/WebHome/image-20220519160412-24.png?rev=1.1||alt="image-20220519160412-24.png"]]
218 +
219 +
220 +[[image:http://8.211.40.43:8080/xwiki/bin/download/Main/Node-RED/node_red%20usage%20example/WebHome/image-20220519160759-27.png?rev=1.1||alt="image-20220519160759-27.png"]]
221 +
222 +
223 +[[image:http://8.211.40.43:8080/xwiki/bin/download/Main/Node-RED/node_red%20usage%20example/WebHome/image-20220519161326-30.png?rev=1.1||alt="image-20220519161326-30.png"]]
224 +
225 +
226 +[[image:image-20220525185746-2.png]]
227 +
228 +
229 +[[image:http://8.211.40.43:8080/xwiki/bin/download/Main/Node-RED/node_red%20usage%20example/WebHome/image-20220519161650-32.png?rev=1.1||alt="image-20220519161650-32.png"]]
230 +
231 +
232 +
233 +After the display interface is defined for the first time, subsequent charts can directly select the display interface
234 +
235 +
236 +[[image:http://8.211.40.43:8080/xwiki/bin/download/Main/Node-RED/node_red%20usage%20example/WebHome/image-20220519162039-34.png?rev=1.1||alt="image-20220519162039-34.png"]]
237 +
238 +​​​​​​
239 +
240 +[[image:image-20220525190106-3.png]]
241 +
242 +
243 +
244 +Connect graph nodes to functions with lines
245 +
246 +Click to deploy
247 +
248 +
249 +[[image:http://8.211.40.43:8080/xwiki/bin/download/Main/Node-RED/node_red%20usage%20example/WebHome/image-20220519162412-36.png?rev=1.1||alt="image-20220519162412-36.png"]]
250 +
251 +Enter the server public IP + port 1880/ui
252 +
253 +example：[[http:~~/~~/xxx.xx.xx.xx:1880/ui>>url:http://119.91.62.30:1880/ui/#!/18?socketid=WY1MCE0RFEKHey8KAADj]]
254 +
255 +
256 +
257 +[[image:http://8.211.40.43:8080/xwiki/bin/download/Main/Node-RED/node_red%20usage%20example/WebHome/image-20220519163141-37.png?rev=1.1||alt="image-20220519163141-37.png"]]
258 +
259 +At this point, the basic demonstration of nodered is completed. If you need to beautify the chart and various visualizations, you can go to the official documentation of nodered for further understanding.
260 +
261 +
262 +
263 +== 2.4  Store Value ==
264 +
265 +
266 +Regarding storage, we recommend two ways
267 +
268 +
269 +
270 +=== 2.4.1  1. Generate txt document directly ===
271 +
272 +Sample JSON file:链接转到示例JSON文件[[image:image-20220713102658-1.png]]
273 +
274 +
275 +
276 +=== 2.4.2  2. Use sqlite database ===
277 +
278 +
279 +==== **1.  Install SQLite** ====
280 +
281 +
282 +[[image:image-20220713111030-2.png]]
283 +
284 +
285 +
286 +==== **2.  After the installation is successful, the nodes in the picture will appear** ====
287 +
288 +
289 +[[image:image-20220713111200-3.png]]
290 +
291 +
292 +
293 +==== **3.  Import sample flow** ====
294 +
295 +
296 +== 2.5  Email Notification ==
297 +
298 +
299 +
300 += 3.  Input Flow =
301 +
302 +
303 +Directly import JSON files to generate flow
304 +
305 +Download the required JSON file through this link: 提供一个链接
306 +
307 +Take LHT65 as an example  (this node is already registered with TTN,MQTT protocol to connect)
308 +
309 +[[image:http://8.211.40.43:8080/xwiki/bin/download/Main/Node-RED/Directly%20import%20JSON%20files%20to%20generate%20flow/WebHome/image-20220524175748-3.png?rev=1.1||alt="image-20220524175748-3.png"]]
310 +
311 +[[image:http://8.211.40.43:8080/xwiki/bin/download/Main/Node-RED/Directly%20import%20JSON%20files%20to%20generate%20flow/WebHome/image-20220524175814-4.png?rev=1.1||alt="image-20220524175814-4.png"]]
312 +
313 +[[image:http://8.211.40.43:8080/xwiki/bin/download/Main/Node-RED/Directly%20import%20JSON%20files%20to%20generate%20flow/WebHome/image-20220524175914-5.png?rev=1.1||alt="image-20220524175914-5.png"]]
314 +
315 +[[image:http://8.211.40.43:8080/xwiki/bin/download/Main/Node-RED/Directly%20import%20JSON%20files%20to%20generate%20flow/WebHome/image-20220524175935-6.png?rev=1.1||alt="image-20220524175935-6.png"]]
316 +
317 +After the import is successful, change the MQTT in node to your TTN information
318 +
319 +[[image:http://8.211.40.43:8080/xwiki/bin/download/Main/Node-RED/Directly%20import%20JSON%20files%20to%20generate%20flow/WebHome/image-20220524184449-1.png?rev=1.1||alt="image-20220524184449-1.png"]]
320 +
321 +[[image:http://8.211.40.43:8080/xwiki/bin/download/Main/Node-RED/Directly%20import%20JSON%20files%20to%20generate%20flow/WebHome/image-20220524184521-2.png?rev=1.1||alt="image-20220524184521-2.png"]]
322 +
323 +Configure information consistent with your TTN
324 +
325 +[[image:http://8.211.40.43:8080/xwiki/bin/download/Main/Node-RED/Directly%20import%20JSON%20files%20to%20generate%20flow/WebHome/image-20220524184722-3.png?rev=1.1||alt="image-20220524184722-3.png"]]
326 +
327 +[[image:http://8.211.40.43:8080/xwiki/bin/download/Main/Node-RED/Directly%20import%20JSON%20files%20to%20generate%20flow/WebHome/image-20220524192830-4.png?rev=1.1||alt="image-20220524192830-4.png"]]
328 +
329 +API keys generated by the password for you
330 +
331 +[[image:http://8.211.40.43:8080/xwiki/bin/download/Main/Node-RED/Directly%20import%20JSON%20files%20to%20generate%20flow/WebHome/image-20220524193028-5.png?rev=1.1||alt="image-20220524193028-5.png"]]
332 +
333 +Topic modify it to the following format
334 +
335 +v3/(% style="color:red" %)Application ID(%%)@ttn/devices/(% style="color:red" %)End device ID(%%)/up
336 +
337 +[[image:http://8.211.40.43:8080/xwiki/bin/download/Main/Node-RED/Directly%20import%20JSON%20files%20to%20generate%20flow/WebHome/image-20220524193258-6.png?rev=1.1||alt="image-20220524193258-6.png"]]
338 +
339 +After the modification is completed, click Deploy
LHT65N-chirpstack decoder.txt
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1 +function Decode(fPort, bytes){
2 +var data = {
3 + //External sensor
4 + Ext_sensor:
5 + {
6 + "0":"No external sensor",
7 + "1":"Temperature Sensor",
8 + "4":"Interrupt Sensor send",
9 + "5":"Illumination Sensor",
10 + "6":"ADC Sensor",
11 + "7":"Interrupt Sensor count",
12 + }[bytes[6]&0x7F],
13 +
14 + //Battery,units:V
15 + BatV:((bytes[0]<<8 | bytes[1]) & 0x3FFF)/1000,
16 +
17 + //SHT20,temperature,units:
18 + TempC_SHT:((bytes[2]<<24>>16 | bytes[3])/100).toFixed(2),
19 +
20 + //SHT20,Humidity,units:%
21 + Hum_SHT:((bytes[4]<<8 | bytes[5])/10).toFixed(1),
22 +
23 + //DS18B20,temperature,units:
24 + TempC_DS:
25 + {
26 + "1":((bytes[7]<<24>>16 | bytes[8])/100).toFixed(2),
27 + }[bytes[6]&0xFF],
28 +
29 + //Exti pin level,PA4
30 + Exti_pin_level:
31 + {
32 + "4":bytes[7] ? "High":"Low",
33 + }[bytes[6]&0x7F],
34 +
35 + //Exit pin status,PA4
36 + Exti_status:
37 + {
38 + "4":bytes[8] ? "True":"False",
39 + }[bytes[6]&0x7F],
40 +
41 + //BH1750,illumination,units:lux
42 + ILL_lux:
43 + {
44 + "5":bytes[7]<<8 | bytes[8],
45 + }[bytes[6]&0x7F],
46 +
47 + //ADC,PA4,units:V
48 + ADC_V:
49 + {
50 + "6":(bytes[7]<<8 | bytes[8])/1000,
51 + }[bytes[6]&0x7F],
52 +
53 + //Exti count,PA4,units:times
54 + Exit_count:
55 + {
56 + "7":bytes[7]<<8 | bytes[8],
57 + }[bytes[6]&0x7F],
58 +
59 + //Applicable to working mode 4567,and working mode 467 requires short circuit PA9 and PA10
60 + No_connect:
61 + {
62 + "1":"Sensor no connection",
63 + }[(bytes[6]&0x80)>>7],
64 + };
65 + return data;
66 +}
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