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170	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	171
172		-
173		-
174	174	After the installation is successful, nodered will show the following node icon
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176	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"]]
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186	186
187	187	The demo uses 3 kinds. Voltage, temperature, humidity
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189		-
190	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"]]
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192		-
193		-
194	194	double click function
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197	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	198
199		-
200		-
201	201	Adjusted to 3, because we need to display 3 charts
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204	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"]]
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211	211	Double-click while setting up the node as above
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214	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"]]
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217	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"]]
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220	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"]]
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223	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"]]
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226	226	[[image:image-20220525185746-2.png]]
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229	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"]]
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233	233	After the display interface is defined for the first time, subsequent charts can directly select the display interface
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	218	+[[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"]]​​​​​​
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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"]]
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238		-​​​​​​
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240	240	[[image:image-20220525190106-3.png]]
241	241
242		-
243		-
244	244	Connect graph nodes to functions with lines
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246	246	Click to deploy
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248		-
249	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"]]
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251	251	Enter the server public IP + port 1880/ui
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253	253	example：[[http:~~/~~/xxx.xx.xx.xx:1880/ui>>url:http://119.91.62.30:1880/ui/#!/18?socketid=WY1MCE0RFEKHey8KAADj]]
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257	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"]]
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259	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.
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263	263	== 2.4  Store Value ==
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265	265
266		-Regarding storage, we recommend two ways.
	241	+Regarding storage, we recommend two ways
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269	269
270	270	=== 2.4.1  1. Generate txt document directly ===
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272		-
273	273	Sample JSON file:链接转到示例JSON文件[[image:image-20220713102658-1.png]]
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277	277	=== 2.4.2  2. Use sqlite database ===
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280		-==== (% style="color:blue" %)**1.  Install SQLite**(%%) ====
	254	+==== **1.  Install SQLite** ====
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283	283	[[image:image-20220713111030-2.png]]
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287		-==== (% style="color:blue" %)**2.  After the installation is successful, the nodes in the picture will appear**(%%) ====
	261	+==== **2.  After the installation is successful, the nodes in the picture will appear** ====
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290	290	[[image:image-20220713111200-3.png]]
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294		-==== (% style="color:blue" %)**3.  Import sample flow**(%%) ====
	268	+==== **3.  Import sample flow** ====
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297		-
298	298	== 2.5  Email Notification ==
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