Wiki source code of Node-RED_Install and Use

Version 105.1 by Mengting Qiu on 2024/11/19 11:25
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1 (% class="wikigeneratedid" id="HEndDeviceFrequencyBand" %)
2 **Table of** **Contents：**
3
4 {{toc/}}
5
6
7
8
9 = 1. Installation =
10
11
12 Check installation instruction for different OS from this link: [[https:~~/~~/nodered.org/docs/getting-started/>>https://nodered.org/docs/getting-started/]]
13
14
15 == 1.1 Install Example for CENTOS ==
16
17 === 1.1.1 Installation ===
18
19
20 (% class="box infomessage" %)
21 (((
22 Reference Instruction from this link:  [[https:~~/~~/github.com/node-red/linux-installers>>https://github.com/node-red/linux-installers]]
23 Run below commands and wait for installation complete.
24 )))
25
26 [[image:image-20220526161040-1.png]]
27
28
29 (% style="color:blue" %)**Verify if the installation was successful**
30
31 Type in the command line interface ** (% style="color:red" %)node-red(%%)**(% style="color:red" %)  
32
33 The following information appears to prove that the installation has been successful
34
35 [[image:image-20220526161103-2.png]]
36
37
38 === 1.1.2 If you want to start Node-RED as a background process ===
39
40
41 Type in the command line interface  (% style="color:red" %)**nohup node-red &**
42
43 It will prompt after startup
44
45 [[image:image-20220519104601-5.png]]
46
47 After seeing the above information, press **enter.**
48
49 Type in the command line  exit.
50
51 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.
52
53
54 == 1.2 Install in Dragino Gataway ==
55
56
57 The below models from Dragino already have Node-Red installed by default. Users no need to install it by themselves.
58
59 * [[LPS8v2 Indoor LoRaWAN Gateway. >>https://www.dragino.com/products/lora-lorawan-gateway/item/228-lps8v2.html]]
60
61 Other gateway model doesn't support built-in Node-Red server.
62
63
64 = 2. General Use of  Node-RED =
65
66
67 This section describes some basic features of Node-RED. For more info please check the [[Node-RED official document>>https://nodered.org/]].
68
69
70 == 2.1 Login to Node-RED interface ==
71
72
73 Enter your public IP address followed by the port number 1880
74
75 example：[[http:~~/~~/xxx.xx.xx.xx:1880/>>http://119.91.62.30:1880/]]
76
77 [[image:image-20220519104115-4.png||height="280" width="768"]]
78
79
80 == 2.2 Add flow ==
81
82
83 Take NBSN95 mod1 UDP protocol as an example
84
85 After logging into the interface click** (% style="color:red" %)"+" (%%)**to create a flow
86
87 [[image:image-20241119101328-1.png||height="460" width="970"]]
88
89 Rename the stream
90
91
92
93 [[image:image-20241119101551-2.png||height="465" width="979"]]
94
95
96 Drag UDP into the editing area
97
98 [[image:image-20241119101952-3.png||height="466" width="983"]]
99
100
101 The same method as above, drag and drop functions and debug into the editing area
102
103 [[image:image-20241119102218-4.png||height="468" width="986"]]
104
105 configure UDP in
106
107 [[image:image-20241119103312-7.png||height="470" width="991"]]
108
109
110 Write to the UDP port that the device node sends to the server
111
112 Example My UDP device node sends to server port 8585
113 just write 8585
114
115
116 (% 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.**
117
118
119 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.
120
121 [[image:image-20241119105123-9.png||height="557" width="995"]]
122
123
124 When the node successfully sends data, the effect shown in the following figure will appear
125
126 [[image:image-20241119104939-8.png||height="473" width="996"]]
127
128
129 === 2.2.1 About function ===
130
131
132 If you are familiar with JS code, you can write it yourself
133 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.
134
135 [[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" height="478" width="789"]]
136
137
138 == 2.3 Plot Chart for sensors ==
139
140
141 If you need data visualization, please refer to the following
142
143 [[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"]]
144
145
146 (% style="color:blue" %)**1. Click Install**
147
148 (% style="color:blue" %)**2. Search the dashboard**
149
150 (% style="color:blue" %)**3. Click Install**
151
152
153 [[image:image-20241119110335-11.png||height="483" width="1018"]]
154
155
156 After the installation is successful, nodered will show the following node icon
157
158 [[image:image-20241119110539-12.png||height="484" width="1020"]]
159
160
161 === 2.3.1 the line chart as an example ===
162
163
164 Drag the line chart to the editing area
165
166 Just drag and drop as many as you need, or you can copy
167
168 The demo uses 3 kinds. Voltage, temperature, humidity
169
170 [[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" height="242" width="743"]]
171
172
173 double click function
174
175 [[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" height="549" width="749"]]
176
177
178 Adjusted to 3, because we need to display 3 charts
179
180 [[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" height="418" width="755"]]
181
182
183 === 2.3.2 the chart settings ===
184
185
186 Double-click while setting up the node as above
187
188
189 [[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" height="703" width="729"]]
190
191
192 [[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" height="501" width="727"]]
193
194
195 [[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" height="554" width="722"]]
196
197
198 [[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" height="444" width="721"]]
199
200
201 [[image:image-20220525185746-2.png||height="421" width="724"]]
202
203
204 [[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" height="722" width="726"]]
205
206
207 After the display interface is defined for the first time, subsequent charts can directly select the display interface
208
209 [[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" height="644" width="724"]]
210
211 ​​​​​​
212
213 [[image:image-20220525190106-3.png||height="575" width="724"]]
214
215
216 Connect graph nodes to functions with lines
217
218 Click to deploy
219
220 [[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" height="256" width="726"]]
221
222 Enter the server public IP + port 1880/ui
223
224 example：[[http:~~/~~/xxx.xx.xx.xx:1880/ui>>url:http://119.91.62.30:1880/ui/#!/18?socketid=WY1MCE0RFEKHey8KAADj]]
225
226
227 [[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" height="203" width="735"]]
228
229
230 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.
231
232
233 == 2.4 Store Value ==
234
235
236 Regarding storage, we recommend two ways.
237
238
239 === 2.4.1 (% style="display:none" %) (%%)Method 1: Generate txt document directly ===
240
241
242 Sample JSON file: [[https:~~/~~/www.dropbox.com/sh/mduw85jcuwsua22/AAAvwPhg9z6dLjJhmZjqBf_ma?dl=0>>https://www.dropbox.com/sh/mduw85jcuwsua22/AAAvwPhg9z6dLjJhmZjqBf_ma?dl=0]]
243
244 [[image:image-20220713102658-1.png||height="346" width="728"]]
245
246
247 === 2.4.2 Method 2: Use sqlite database ===
248
249
250 ==== (% style="color:blue" %)**1.  Install SQLite**(%%) ====
251
252
253 [[image:image-20220713111030-2.png||height="438" width="739"]]
254
255
256
257 ==== (% style="color:blue" %)**2.  After the installation is successful, the nodes in the picture will appear**(%%) ====
258
259
260 [[image:image-20220713111200-3.png]]
261
262
263
264 ==== (% style="color:blue" %)**3.  Import sample flow**(%%) ====
265
266
267 Refer to the import example below to import the sqlite example flow
268
269 Download sample JSON file link: [[https:~~/~~/www.dropbox.com/sh/mduw85jcuwsua22/AAAvwPhg9z6dLjJhmZjqBf_ma?dl=0>>https://www.dropbox.com/sh/mduw85jcuwsua22/AAAvwPhg9z6dLjJhmZjqBf_ma?dl=0]]
270
271
272 = 3. Import Input Flow for Dragino Sensors =
273
274
275 Dragino provides input flow examples for the sensors.
276
277 User can download the required JSON file through [[Dragino Node-RED input flow template>>https://github.com/dragino/dragino-end-node-decoder]].
278
279 Take LHT65 as an example  (Assume this node is already registered with TTN, MQTT protocol to connect)
280
281 [[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"]]
282
283 [[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"]]
284
285 [[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" height="443" width="773"]]
286
287 [[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" height="568" width="768"]]
288
289 After the import is successful, change the MQTT in node to your TTN information
290
291 [[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" height="643" width="772"]]
292
293 [[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" height="648" width="773"]]
294
295
296
297 Configure information consistent with your TTN
298
299 [[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" height="349" width="758"]]
300
301 [[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" height="376" width="758"]]
302
303
304
305 API keys generated by the password for you
306
307 [[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" height="370" width="759"]]
308
309
310 Topic modify it to the following format
311
312 v3/(% style="color:red" %)Application ID(%%)@ttn/devices/(% style="color:red" %)End device ID(%%)/up
313
314 [[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" height="690" width="755"]]
315
316 After the modification is completed, click Deploy
317
318
319 = 4. Add Dragino node =
320
321
322 Please do not modify the code anywhere to avoid any exceptions
323
324 The prerequisite is to install the Dragino node and the sqlite node dashboard node
325
326 The echarts library is placed in the static file of node red
327
328 Reference link: [[https:~~/~~/nodered.org/docs/user-guide/runtime/configuration>>]]
329
330 Please download the general flow and echarts files from this link：[[https:~~/~~/www.dropbox.com/scl/fo/677l8f3u3evpojcdcj3j7/h?rlkey=0iqbwf27dbyi75egmrp0p0yjx&dl=0>>https://www.dropbox.com/scl/fo/677l8f3u3evpojcdcj3j7/h?rlkey=0iqbwf27dbyi75egmrp0p0yjx&dl=0]]
331
332
333 == 4.1 Installing Dragino nodes ==
334
335
336 [[image:image-20240104095739-1.png||height="662" width="662"]]
337
338 [[image:image-20240104100026-2.png]]
339
340 [[image:image-20240104100109-3.png]]
341
342
343 == 4.2 Import General Flow ==
344
345
346 [[image:image-20240104100340-4.png]]
347
348 [[image:image-20240104100446-5.png||height="407" width="885"]]
349
350 Please refer to the previous chapters for MQTT settings and sqlite installation settings
351
352
353 == 4.3 Using flow ==
354
355
356 Just double-click on the drag ino decoder node and select it from the dropdown menu
357
358 Corresponding nodes are sufficient
359
360 [[image:image-20240104100928-6.png||height="439" width="755"]]
361
362 Setting the template node
363
364 [[image:image-20240104101446-8.png]]
365
366 When multiple nodes are needed in the same process
367
368 [[image:image-20240104103636-1.png]]
369
370 If using the NodeRed that comes with the Dragino gateway
371
372 Change to the following path
373
374 "/static/echarts.min.js"
375
376 [[image:image-20240110153029-1.png]]
377
378
379 After setting up, select deployment
380
381 [[image:image-20240104101346-7.png||height="242" width="724"]]
382
383 Enter the server public IP + port 1880/ui
384
385 example：[[http:~~/~~/xxx.xx.xx.xx:1880/ui>>url:http://119.91.62.30:1880/ui/#!/18?socketid=WY1MCE0RFEKHey8KAADj]]
386
387 You can see the UI display effect in the following picture
388
389 [[image:image-20240104104931-2.png||height="737" width="1131"]]
390
391
392 = 5. FAQ =
393
394 == 5.1 How to use Node-Red to schedule downlink to ChirpStack LoRaWAN Server? ==
395
396 === 5.1.1 Install node-red-node-base64 ===
397
398
399 [[image:image-20240222154204-1.png||height="456" width="983"]]
400
401 [[image:image-20240222154819-3.png||height="469" width="990"]]
402
403
404 === 5.1.2 Import Example Flow ===
405
406
407 The Json file for the example flow can be downloaded at this link:[[https:~~/~~/github.com/dragino/dragino-end-node-decoder/blob/main/Node-RED/chirpstack-MQTT-down.json.>>https://github.com/dragino/dragino-end-node-decoder/blob/main/Node-RED/chirpstack-MQTT-down.json]]
408
409 [[image:image-20240222155121-4.png||height="495" width="1017"]]
410
411 [[image:image-20240222155239-5.png||height="497" width="1020"]]
412
413
414 === 5.1.3 Establish connection ===
415
416
417 Setting up the server:
418
419 [[image:image-20240222160019-7.png||height="413" width="955"]]
420
421 [[image:image-20240222160223-8.png||height="416" width="956"]]
422
423 [[image:image-20240222160347-9.png||height="426" width="963"]]
424
425 Change the theme to Application lD and DevEUl for ChirpStack:
426
427 [[image:image-20240222160712-10.png||height="429" width="988"]]
428
429 [[image:image-20240222160735-11.png||height="417" width="984"]]
430
431 [[image:image-20240222160842-12.png||height="387" width="992"]]
432
433 And then，
434
435 [[image:image-20240222161010-13.png||height="454" width="997"]]
436
437 [[image:image-20240222161147-14.png||height="478" width="1002"]]
438
439 Connection established successfully：
440
441 [[image:image-20240222161252-15.png||height="412" width="1001"]]
442
443
444 === 5.1.4 Input downlink command ===
445
446
447 [[image:image-20240222161614-16.png||height="465" width="997"]]
448
449 [[image:image-20240222161937-17.png||height="472" width="997"]]
450
451
452 Example action video:[[https:~~/~~/youtu.be/Lqm-k5nQ5eU>>https://youtu.be/Lqm-k5nQ5eU]]
453
454
455 == 5.2 How to use Node-Red to schedule downlink to TTN-V3 LoRaWAN Server? ==
456
457 === 5.2.1 Reference 5.1.1 Installing base64 nodes ===
458
459 === 5.2.2 Import Example Flow ===
460
461
462 Reference 5.1.2
463
464 Taking LT-222222-L as an example
465
466 The Json file for the example flow can be downloaded at this link:[[https:~~/~~/github.com/dragino/dragino-end-node-decoder/blob/main/Node-RED/TTN-V3-MQTT-down.json>>https://github.com/dragino/dragino-end-node-decoder/blob/main/Node-RED/TTN-V3-MQTT-down.json]]
467
468 Please refer to this video for specific operation steps: [[https:~~/~~/youtu.be/kms679e4m_Y>>https://youtu.be/kms679e4m_Y]]

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