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Wiki source code of Node-RED_Install and Use

Version 37.1 by Herong Lu on 2022/07/13 11:33
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1 (% class="wikigeneratedid" id="HEndDeviceFrequencyBand" %)
2 **Contents：**
3
4 {{toc/}}
5
6 = Installation =
7
8 Check installation instruction for different OS from this link: [[https:~~/~~/nodered.org/docs/getting-started/>>https://nodered.org/docs/getting-started/]]
9
10 == Install Example for CENTOS ==
11
12 === Installation ===
13
14 (% class="box infomessage" %)
15 (((
16 Reference Instruction from this link:  [[https:~~/~~/github.com/node-red/linux-installers>>https://github.com/node-red/linux-installers]]
17 Run below commands and wait for installation complete.
18 )))
19
20 [[image:image-20220526161040-1.png]]
21
22 **Verify if the installation was successful**
23
24 Type in the command line interface  node-red  
25
26 The following information appears to prove that the installation has been successful
27
28 [[image:image-20220526161103-2.png]]
29
30
31 === If you want to start Node-RED as a background process ===
32
33 Type in the command line interface  nohup node-red &
34
35 It will prompt after startup
36
37 [[image:image-20220519104601-5.png]]
38
39 After seeing the above information, press enter
40
41 Type in the command line  exit
42
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
45 == Install in Dragino Gataway ==
46
47
48 = Use Node-RED =
49
50 == Login to Node-RED interface ==
51
52 Enter your public IP address followed by the port number 1880
53
54 example：[[http:~~/~~/xxx.xx.xx.xx:1880/>>http://119.91.62.30:1880/]]
55
56 [[image:image-20220519104115-4.png||height="352" width="969"]]
57
58
59 == Add flow ==
60
61 Take NBSN95 mod1 UDP protocol as an example
62
63 After logging into the interface click '+' to create a flow
64
65 [[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"]]
66
67 Rename the stream
68
69 [[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"]]
70
71 [[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"]]
72
73 [[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"]]
74
75 Drag UDP into the editing area
76
77 [[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"]]
78
79 The same method as above, drag and drop functions and debug into the editing area
80
81 [[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"]]
82
83 configure UDP in
84
85 [[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"]]
86
87 Write to the UDP port that the device node sends to the server
88
89 Example My UDP device node sends to server port 8585
90 just write 8585
91
92 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.
93
94 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.
95
96 [[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"]]
97
98 [[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"]]
99
100 [[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"]]
101
102 [[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"]]
103
104 When the node successfully sends data, the effect shown in the following figure will appear
105
106 [[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"]]
107
108 === About function ===
109
110 If you are familiar with JS code, you can write it yourself
111 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
112
113 [[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"]]
114
115
116 == Plot Chart for sensors ==
117
118 If you need data visualization, please refer to the following
119
120 [[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"]]
121
122 ~1. Click Install
123 2. Search the dashboard
124 3. Click Install
125
126 [[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"]]
127
128 After the installation is successful, nodered will show the following node icon
129
130 [[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"]]
131
132 === the line chart as an example ===
133
134 Drag the line chart to the editing area
135
136 Just drag and drop as many as you need, or you can copy
137
138 The demo uses 3 kinds. Voltage, temperature, humidity
139
140 [[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"]]
141
142 double click function
143
144 [[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"]]
145
146 Adjusted to 3, because we need to display 3 charts
147
148 [[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"]]
149
150 === the chart settings ===
151
152 Double-click while setting up the node as above
153
154 [[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"]]
155
156 [[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"]]
157
158 [[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"]]
159
160 [[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"]]
161
162 [[image:image-20220525185746-2.png]]
163
164 [[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"]]
165
166 After the display interface is defined for the first time, subsequent charts can directly select the display interface
167
168 [[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"]]​​​​​​
169
170 [[image:image-20220525190106-3.png]]
171
172 Connect graph nodes to functions with lines
173
174 Click to deploy
175
176 [[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"]]
177
178 Enter the server public IP + port 1880/ui
179
180 example：[[http:~~/~~/xxx.xx.xx.xx:1880/ui>>url:http://119.91.62.30:1880/ui/#!/18?socketid=WY1MCE0RFEKHey8KAADj]]
181
182 [[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"]]
183
184 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.
185
186 == Store Value ==
187
188 Regarding storage, we recommend two ways
189
190 === 1.Generate txt document directly ===
191
192 Sample JSON file:链接转到示例JSON文件[[image:image-20220713102658-1.png]]
193
194 === 2.Use sqlite database ===
195
196 ==== 1.Install SQLite ====
197
198 [[image:image-20220713111030-2.png]]
199
200 ==== 2.After the installation is successful, the nodes in the picture will appear ====
201
202 [[image:image-20220713111200-3.png]]
203
204 ==== 3.Import sample flow ====
205
206
207 == Email Notification ==
208
209
210 = Input Flow =
211
212 Directly import JSON files to generate flow
213
214 Download the required JSON file through this link: 提供一个链接
215
216 Take LHT65 as an example  (this node is already registered with TTN,MQTT protocol to connect)
217
218 [[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"]]
219
220 [[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"]]
221
222 [[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"]]
223
224 [[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"]]
225
226 After the import is successful, change the MQTT in node to your TTN information
227
228 [[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"]]
229
230 [[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"]]
231
232 Configure information consistent with your TTN
233
234 [[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"]]
235
236 [[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"]]
237
238 API keys generated by the password for you
239
240 [[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"]]
241
242 Topic modify it to the following format
243
244 v3/(% style="color:red" %)Application ID(%%)@ttn/devices/(% style="color:red" %)End device ID(%%)/up
245
246 [[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"]]
247
248 After the modification is completed, click Deploy