Wiki source code of Node-RED_Install and Use

Version 134.1 by Mengting Qiu on 2024/11/29 10:14

version	line-number	content
14.1	1	(% class="wikigeneratedid" id="HEndDeviceFrequencyBand" %)
37.2	2	Table of Contents：
13.1	3
14.1	4	{{toc/}}
	5
2.1	6
37.2	7
	8
59.3	9	= 1. Installation =
37.2	10
	11
21.1	12	Check installation instruction for different OS from this link: [[https:~~/~~/nodered.org/docs/getting-started/>>https://nodered.org/docs/getting-started/]]
2.1	13
	14
59.3	15	== 1.1 Install Example for CENTOS ==
37.2	16
59.3	17	=== 1.1.1 Installation ===
37.2	18
	19
11.1	20	(% class="box infomessage" %)
	21	(((
21.1	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.
11.1	24	)))
9.1	25
32.2	26	[[image:image-20220526161040-1.png]]
9.1	27
	28
37.4	29	(% style="color:blue" %)Verify if the installation was successful
9.1	30
37.4	31	Type in the command line interface (% style="color:red" %)node-red(%%)(% style="color:red" %)
	32
21.1	33	The following information appears to prove that the installation has been successful
9.1	34
32.2	35	[[image:image-20220526161103-2.png]]
9.1	36
	37
59.3	38	=== 1.1.2 If you want to start Node-RED as a background process ===
9.1	39
37.2	40
37.4	41	Type in the command line interface (% style="color:red" %)nohup node-red &
9.1	42
21.1	43	It will prompt after startup
9.1	44
	45	[[image:image-20220519104601-5.png]]
	46
41.2	47	After seeing the above information, press enter.
9.1	48
41.2	49	Type in the command line exit.
9.1	50
41.2	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.
12.1	52
	53
59.3	54	== 1.2 Install in Dragino Gataway ==
15.1	55
39.2	56
41.1	57	The below models from Dragino already have Node-Red installed by default. Users no need to install it by themselves.
12.1	58
41.1	59	* [[LPS8v2 Indoor LoRaWAN Gateway. >>https://www.dragino.com/products/lora-lorawan-gateway/item/228-lps8v2.html]]
37.2	60
41.1	61	Other gateway model doesn't support built-in Node-Red server.
39.2	62
41.1	63
59.3	64	= 2. General Use of Node-RED =
37.2	65
	66
40.1	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
59.3	70	== 2.1 Login to Node-RED interface ==
37.2	71
	72
21.1	73	Enter your public IP address followed by the port number 1880
12.1	74
21.1	75	example：[[http:~~/~~/xxx.xx.xx.xx:1880/>>http://119.91.62.30:1880/]]
12.1	76
38.1	77	[[image:image-20220519104115-4.png\|\|height="280" width="768"]]
12.1	78
	79
59.3	80	== 2.2 Add flow ==
37.2	81
	82
21.1	83	Take NBSN95 mod1 UDP protocol as an example
16.1	84
37.5	85	After logging into the interface click (% style="color:red" %)"+" (%%)to create a flow
16.1	86
104.2	87	[[image:image-20241119101328-1.png\|\|height="460" width="970"]]
16.1	88
21.1	89	Rename the stream
16.1	90
	91
39.2	92
104.2	93	[[image:image-20241119101551-2.png\|\|height="465" width="979"]]
17.1	94
39.2	95
21.1	96	Drag UDP into the editing area
17.1	97
104.2	98	[[image:image-20241119101952-3.png\|\|height="466" width="983"]]
37.5	99
20.2	100
21.1	101	The same method as above, drag and drop functions and debug into the editing area
20.2	102
104.2	103	[[image:image-20241119102218-4.png\|\|height="468" width="986"]]
20.2	104
21.1	105	configure UDP in
20.2	106
104.2	107	[[image:image-20241119103312-7.png\|\|height="470" width="991"]]
20.2	108
37.5	109
21.1	110	Write to the UDP port that the device node sends to the server
20.2	111
21.1	112	Example My UDP device node sends to server port 8585
	113	just write 8585
20.2	114
	115
37.5	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
21.1	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.
20.2	120
104.2	121	[[image:image-20241119105123-9.png\|\|height="557" width="995"]]
20.2	122
37.5	123
21.1	124	When the node successfully sends data, the effect shown in the following figure will appear
20.2	125
104.2	126	[[image:image-20241119104939-8.png\|\|height="473" width="996"]]
20.2	127
	128
59.3	129	=== 2.2.1 About function ===
37.2	130
	131
21.1	132	If you are familiar with JS code, you can write it yourself
109.2	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.([[dragino-end-node-red-Flow>>https://github.com/dragino/dragino-end-node-decoder/blob/main/Node-RED/NBSN95.json]])
20.2	134
109.2	135	[[image:image-20241119112519-14.png\|\|height="483" width="1018"]]
20.2	136
	137
59.3	138	== 2.3 Plot Chart for sensors ==
37.2	139
	140
25.1	141	If you need data visualization, please refer to the following
20.2	142
109.2	143	[[image:image-20241119112928-15.png\|\|height="484" width="1020"]]
25.1	144
37.6	145
41.2	146	(% style="color:blue" %)1. Click Install
25.1	147
41.2	148	(% style="color:blue" %)2. Search the dashboard
37.6	149
41.2	150	(% style="color:blue" %)3. Click Install
37.6	151
41.2	152
104.2	153	[[image:image-20241119110335-11.png\|\|height="483" width="1018"]]
25.1	154
37.7	155
25.1	156	After the installation is successful, nodered will show the following node icon
	157
104.2	158	[[image:image-20241119110539-12.png\|\|height="484" width="1020"]]
25.1	159
	160
59.3	161	=== 2.3.1 the line chart as an example ===
37.2	162
	163
25.1	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
109.2	170	[[image:image-20241119114103-18.png\|\|height="422" width="889"]]
25.1	171
37.7	172
25.1	173	double click function
	174
109.2	175	[[image:image-20241119113522-16.png\|\|height="425" width="896"]]
25.1	176
37.7	177
25.1	178	Adjusted to 3, because we need to display 3 charts
	179
109.2	180	[[image:image-20241119113742-17.png\|\|height="427" width="899"]]
25.1	181
	182
59.3	183	=== 2.3.2 the chart settings ===
37.2	184
	185
25.1	186	Double-click while setting up the node as above
	187
37.7	188
133.2	189	[[image:image-20241129100546-9.png\|\|height="507" width="1068"]]
25.1	190
37.7	191
133.2	192	[[image:image-20241129100654-10.png\|\|height="507" width="1067"]]
25.1	193
37.7	194
133.2	195	[[image:image-20241129100821-11.png\|\|height="511" width="1076"]]
25.1	196
37.7	197
25.1	198
133.2	199	[[image:image-20220525185746-2.png\|\|height="509" width="873"]]
37.7	200
25.1	201
38.1	202	[[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"]]
25.1	203
37.7	204
25.1	205	After the display interface is defined for the first time, subsequent charts can directly select the display interface
	206
38.1	207	[[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"]]
37.7	208
	209
	210
38.1	211	[[image:image-20220525190106-3.png\|\|height="575" width="724"]]
25.1	212
37.7	213
25.1	214	Connect graph nodes to functions with lines
	215
	216	Click to deploy
	217
118.2	218	[[image:image-20241120090012-1.png\|\|height="416" width="877"]]
25.1	219
	220	Enter the server public IP + port 1880/ui
	221
	222	example：[[http:~~/~~/xxx.xx.xx.xx:1880/ui>>url:http://119.91.62.30:1880/ui/#!/18?socketid=WY1MCE0RFEKHey8KAADj]]
	223
113.2	224	[[image:image-20241119134533-19.png\|\|height="455" width="880"]]
25.1	225
39.2	226
25.1	227	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.
	228
20.2	229
59.3	230	== 2.4 Store Value ==
37.2	231
	232
37.8	233	Regarding storage, we recommend two ways.
20.2	234
36.1	235
59.3	236	=== 2.4.1 (% style="display:none" %) (%%)Method 1: Generate txt document directly ===
37.2	237
39.2	238
41.3	239	Sample JSON file: [[https:~~/~~/www.dropbox.com/sh/mduw85jcuwsua22/AAAvwPhg9z6dLjJhmZjqBf_ma?dl=0>>https://www.dropbox.com/sh/mduw85jcuwsua22/AAAvwPhg9z6dLjJhmZjqBf_ma?dl=0]]
37.8	240
38.1	241	[[image:image-20220713102658-1.png\|\|height="346" width="728"]]
36.1	242
	243
59.3	244	=== 2.4.2 Method 2: Use sqlite database ===
37.2	245
	246
37.8	247	==== (% style="color:blue" %)1. Install SQLite(%%) ====
37.2	248
	249
38.1	250	[[image:image-20220713111030-2.png\|\|height="438" width="739"]]
36.1	251
	252
37.2	253
37.8	254	==== (% style="color:blue" %)2. After the installation is successful, the nodes in the picture will appear(%%) ====
37.2	255
	256
36.1	257	[[image:image-20220713111200-3.png]]
	258
	259
	260
37.8	261	==== (% style="color:blue" %)3. Import sample flow(%%) ====
20.2	262
39.2	263
39.1	264	Refer to the import example below to import the sqlite example flow
20.2	265
41.3	266	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]]
37.8	267
39.2	268
59.3	269	= 3. Import Input Flow for Dragino Sensors =
37.2	270
	271
40.1	272	Dragino provides input flow examples for the sensors.
27.1	273
130.2	274	User can download the required JSON file through [[Dragino Node-RED input flow template>>https://github.com/dragino/dragino-end-node-decoder/tree/main/Node-RED]].
27.1	275
130.2	276	Take LHT65N as an example (Assume this node is already registered with TTN, MQTT protocol to connect)
28.1	277
130.2	278	[[image:image-20241129094455-1.png\|\|height="537" width="1062"]]
27.1	279
130.2	280	[[image:image-20241129094558-2.png\|\|height="538" width="1063"]]
27.1	281
130.2	282	[[image:image-20241129094724-3.png\|\|height="513" width="1080"]]
27.1	283
130.2	284	[[image:image-20241129094850-4.png\|\|height="513" width="1081"]]
27.1	285
28.1	286	After the import is successful, change the MQTT in node to your TTN information
	287
130.2	288	[[image:image-20241129095458-6.png\|\|height="511" width="1076"]]
28.1	289
130.2	290	[[image:image-20241129095351-5.png\|\|height="515" width="1085"]]
28.1	291
39.2	292
	293
28.1	294	Configure information consistent with your TTN
	295
	296
130.2	297	[[image:image-20241129095817-7.png\|\|height="516" width="1087"]]
28.1	298
130.2	299	[[image:image-20241129095931-8.png\|\|height="515" width="1085"]]
39.2	300
	301
130.2	302
28.1	303	API keys generated by the password for you
	304
113.2	305	[[image:image-20241119135338-21.png\|\|height="515" width="1085"]]
28.1	306
39.2	307
28.1	308	Topic modify it to the following format
	309
30.1	310	v3/(% style="color:red" %)Application ID(%%)@ttn/devices/(% style="color:red" %)End device ID(%%)/up
28.1	311
113.2	312	[[image:image-20241119135151-20.png\|\|height="515" width="1085"]]
28.1	313
	314	After the modification is completed, click Deploy
48.1	315
	316
59.2	317	= 4. Add Dragino node =
	318
	319
53.1	320	Please do not modify the code anywhere to avoid any exceptions
	321
	322	The prerequisite is to install the Dragino node and the sqlite node dashboard node
	323
	324	The echarts library is placed in the static file of node red
	325
56.1	326	Reference link: [[https:~~/~~/nodered.org/docs/user-guide/runtime/configuration>>]]
53.1	327
59.2	328	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]]
56.1	329
48.1	330
59.2	331	== 4.1 Installing Dragino nodes ==
	332
	333
48.1	334	[[image:image-20240104095739-1.png\|\|height="662" width="662"]]
	335
	336	[[image:image-20240104100026-2.png]]
	337
	338	[[image:image-20240104100109-3.png]]
	339
	340
59.3	341	== 4.2 Import General Flow ==
	342
	343
48.1	344	[[image:image-20240104100340-4.png]]
	345
	346	[[image:image-20240104100446-5.png\|\|height="407" width="885"]]
	347
53.1	348	Please refer to the previous chapters for MQTT settings and sqlite installation settings
	349
	350
59.3	351	== 4.3 Using flow ==
	352
	353
53.1	354	Just double-click on the drag ino decoder node and select it from the dropdown menu
	355
	356	Corresponding nodes are sufficient
	357
	358	[[image:image-20240104100928-6.png\|\|height="439" width="755"]]
	359
	360	Setting the template node
	361
	362	[[image:image-20240104101446-8.png]]
	363
	364	When multiple nodes are needed in the same process
	365
55.1	366	[[image:image-20240104103636-1.png]]
53.1	367
61.1	368	If using the NodeRed that comes with the Dragino gateway
55.1	369
61.1	370	Change to the following path
	371
	372	"/static/echarts.min.js"
	373
	374	[[image:image-20240110153029-1.png]]
	375
	376
53.1	377	After setting up, select deployment
	378
	379	[[image:image-20240104101346-7.png\|\|height="242" width="724"]]
59.1	380
	381	Enter the server public IP + port 1880/ui
	382
	383	example：[[http:~~/~~/xxx.xx.xx.xx:1880/ui>>url:http://119.91.62.30:1880/ui/#!/18?socketid=WY1MCE0RFEKHey8KAADj]]
	384
	385	You can see the UI display effect in the following picture
	386
59.3	387	[[image:image-20240104104931-2.png\|\|height="737" width="1131"]]
	388
62.1	389
	390	= 5. FAQ =
	391
	392	== 5.1 How to use Node-Red to schedule downlink to ChirpStack LoRaWAN Server? ==
	393
80.1	394	=== 5.1.1 Install node-red-node-base64 ===
	395
84.2	396
80.1	397	[[image:image-20240222154204-1.png\|\|height="456" width="983"]]
	398
	399	[[image:image-20240222154819-3.png\|\|height="469" width="990"]]
	400
	401
	402	=== 5.1.2 Import Example Flow ===
	403
84.2	404
80.1	405	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]]
	406
	407	[[image:image-20240222155121-4.png\|\|height="495" width="1017"]]
	408
	409	[[image:image-20240222155239-5.png\|\|height="497" width="1020"]]
	410
	411
	412	=== 5.1.3 Establish connection ===
	413
84.2	414
80.1	415	Setting up the server:
	416
	417	[[image:image-20240222160019-7.png\|\|height="413" width="955"]]
	418
	419	[[image:image-20240222160223-8.png\|\|height="416" width="956"]]
	420
	421	[[image:image-20240222160347-9.png\|\|height="426" width="963"]]
	422
	423	Change the theme to Application lD and DevEUl for ChirpStack:
	424
	425	[[image:image-20240222160712-10.png\|\|height="429" width="988"]]
	426
	427	[[image:image-20240222160735-11.png\|\|height="417" width="984"]]
	428
	429	[[image:image-20240222160842-12.png\|\|height="387" width="992"]]
	430
	431	And then，
	432
	433	[[image:image-20240222161010-13.png\|\|height="454" width="997"]]
	434
	435	[[image:image-20240222161147-14.png\|\|height="478" width="1002"]]
	436
	437	Connection established successfully：
	438
	439	[[image:image-20240222161252-15.png\|\|height="412" width="1001"]]
	440
	441
	442	=== 5.1.4 Input downlink command ===
	443
84.2	444
80.1	445	[[image:image-20240222161614-16.png\|\|height="465" width="997"]]
	446
	447	[[image:image-20240222161937-17.png\|\|height="472" width="997"]]
	448
	449
	450	Example action video:[[https:~~/~~/youtu.be/Lqm-k5nQ5eU>>https://youtu.be/Lqm-k5nQ5eU]]
	451
84.2	452
81.1	453	== 5.2 How to use Node-Red to schedule downlink to TTN-V3 LoRaWAN Server? ==
80.1	454
81.1	455	=== 5.2.1 Reference 5.1.1 Installing base64 nodes ===
	456
84.1	457	=== 5.2.2 Import Example Flow ===
81.1	458
84.2	459
86.1	460	Reference 5.1.2
81.1	461
83.1	462	Taking LT-222222-L as an example
	463
84.1	464	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]]
82.1	465
85.1	466	Please refer to this video for specific operation steps: [[https:~~/~~/youtu.be/kms679e4m_Y>>https://youtu.be/kms679e4m_Y]]

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