Changes for page Node-RED_Install and Use

Last modified by Mengting Qiu on 2024/11/29 10:15
<
From version < 17.1 >
edited by Edwin Chen
on 2022/05/25 15:36
To version < 37.4 >
edited by Xiaoling
on 2022/07/25 15:33
>
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1 -XWiki.Edwin
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 -== Add Sensor & Payload ==
60 60  
76 +== 2.2  Add flow ==
61 61  
62 -== Plot Chart for sensors ==
63 63  
79 +Take NBSN95 mod1 UDP protocol as an example
64 64  
65 -== Store Value ==
81 +After logging into the interface click '+' 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 -== Email Notification ==
85 +Rename the stream
69 69  
87 +[[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 70  
71 -= Input Data Flow =
89 +[[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 72  
73 -== MQTT ==
91 +[[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 74  
75 -== UDP ==
93 +Drag UDP into the editing area
76 76  
77 -== TCP ==
95 +[[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 78  
79 -== Get data from LoRaWAN Server (TTN) ==
97 +The same method as above, drag and drop functions and debug into the editing area
98 +
99 +[[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"]]
100 +
101 +configure UDP in
102 +
103 +[[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"]]
104 +
105 +Write to the UDP port that the device node sends to the server
106 +
107 +Example My UDP device node sends to server port 8585
108 +just write 8585
109 +
110 +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.
111 +
112 +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.
113 +
114 +[[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"]]
115 +
116 +[[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"]]
117 +
118 +[[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"]]
119 +
120 +[[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"]]
121 +
122 +When the node successfully sends data, the effect shown in the following figure will appear
123 +
124 +[[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"]]
125 +
126 +
127 +
128 +=== 2.2.1  About function ===
129 +
130 +
131 +If you are familiar with JS code, you can write it yourself
132 +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
133 +
134 +[[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"]]
135 +
136 +
137 +
138 +== 2.3  Plot Chart for sensors ==
139 +
140 +
141 +If you need data visualization, please refer to the following
142 +
143 +
144 +[[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"]]
145 +
146 +~1. Click Install
147 +2. Search the dashboard
148 +3. Click Install
149 +
150 +[[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"]]
151 +
152 +After the installation is successful, nodered will show the following node icon
153 +
154 +[[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"]]
155 +
156 +
157 +
158 +=== 2.3.1  the line chart as an example ===
159 +
160 +
161 +Drag the line chart to the editing area
162 +
163 +Just drag and drop as many as you need, or you can copy
164 +
165 +The demo uses 3 kinds. Voltage, temperature, humidity
166 +
167 +[[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"]]
168 +
169 +double click function
170 +
171 +[[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"]]
172 +
173 +Adjusted to 3, because we need to display 3 charts
174 +
175 +[[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"]]
176 +
177 +
178 +
179 +=== 2.3.2  the chart settings ===
180 +
181 +
182 +Double-click while setting up the node as above
183 +
184 +[[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"]]
185 +
186 +[[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"]]
187 +
188 +[[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"]]
189 +
190 +[[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"]]
191 +
192 +[[image:image-20220525185746-2.png]]
193 +
194 +[[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"]]
195 +
196 +After the display interface is defined for the first time, subsequent charts can directly select the display interface
197 +
198 +[[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"]]​​​​​​
199 +
200 +[[image:image-20220525190106-3.png]]
201 +
202 +Connect graph nodes to functions with lines
203 +
204 +Click to deploy
205 +
206 +[[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"]]
207 +
208 +Enter the server public IP + port 1880/ui
209 +
210 +example：[[http:~~/~~/xxx.xx.xx.xx:1880/ui>>url:http://119.91.62.30:1880/ui/#!/18?socketid=WY1MCE0RFEKHey8KAADj]]
211 +
212 +[[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"]]
213 +
214 +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.
215 +
216 +
217 +
218 +== 2.4  Store Value ==
219 +
220 +
221 +Regarding storage, we recommend two ways
222 +
223 +
224 +
225 +=== 2.4.1  1. Generate txt document directly ===
226 +
227 +Sample JSON file:链接转到示例JSON文件[[image:image-20220713102658-1.png]]
228 +
229 +
230 +
231 +=== 2.4.2  2. Use sqlite database ===
232 +
233 +
234 +==== **1.  Install SQLite** ====
235 +
236 +
237 +[[image:image-20220713111030-2.png]]
238 +
239 +
240 +
241 +==== **2.  After the installation is successful, the nodes in the picture will appear** ====
242 +
243 +
244 +[[image:image-20220713111200-3.png]]
245 +
246 +
247 +
248 +==== **3.  Import sample flow** ====
249 +
250 +
251 +== 2.5  Email Notification ==
252 +
253 +
254 +
255 += 3.  Input Flow =
256 +
257 +
258 +Directly import JSON files to generate flow
259 +
260 +Download the required JSON file through this link: 提供一个链接
261 +
262 +Take LHT65 as an example  (this node is already registered with TTN,MQTT protocol to connect)
263 +
264 +[[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"]]
265 +
266 +[[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"]]
267 +
268 +[[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"]]
269 +
270 +[[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"]]
271 +
272 +After the import is successful, change the MQTT in node to your TTN information
273 +
274 +[[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"]]
275 +
276 +[[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"]]
277 +
278 +Configure information consistent with your TTN
279 +
280 +[[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"]]
281 +
282 +[[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"]]
283 +
284 +API keys generated by the password for you
285 +
286 +[[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"]]
287 +
288 +Topic modify it to the following format
289 +
290 +v3/(% style="color:red" %)Application ID(%%)@ttn/devices/(% style="color:red" %)End device ID(%%)/up
291 +
292 +[[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"]]
293 +
294 +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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