代码:
[{"id":"15d4e229.de9d2e","type":"function","z":"e3aca2b9.00ea7","name":"temperature","func":"str=msg.payload;\nmsg.payload=str.substring(5,9);\nreturn msg;","outputs":1,"noerr":0,"x":470,"y":296.5,"wires":[["7a0ba386.d5fc24"]]},{"id":"7a0ba386.d5fc24","type":"ui_gauge","z":"e3aca2b9.00ea7","name":"","group":"d6ccf1c9.b74398","order":0,"width":0,"height":0,"gtype":"gage","title":"CPU. Temp","label":"℃","format":"{{value}}","min":0,"max":"80","colors":["#00b500","#e6e600","#ca3838"],"seg1":"","seg2":"","x":679,"y":333.5,"wires":[]},{"id":"bf50d228.72e178","type":"inject","z":"e3aca2b9.00ea7","name":"","topic":"","payload":"","payloadType":"date","repeat":"1","crontab":"","once":false,"onceDelay":0.1,"x":104,"y":305.5,"wires":[["db3ed94d.c4bdb"]]},{"id":"db3ed94d.c4bdb","type":"exec","z":"e3aca2b9.00ea7","command":"vcgencmd measure_temp","addpay":false,"append":"","useSpawn":"false","timer":"","oldrc":false,"name":"temp","x":255,"y":312,"wires":[["15d4e229.de9d2e"],[],[]]},{"id":"d6ccf1c9.b74398","type":"ui_group","z":"","name":"tem","tab":"8d45c1ce.10593","disp":true,"width":"6","collapse":false},{"id":"8d45c1ce.10593","type":"ui_tab","z":"","name":"Temp","icon":"dashboard"}]
导入代码过程:
浏览器输入:http://172.16.0.12:1880
IP请根据你自己服务器的IP填写
点击node-red页面右上菜单(红色圈圈),如图:
在弹出的菜单中选择"导入"
粘贴本文上面的代码到下图红框处
粘贴好后点击页面右下角的"导入"按钮即可生成如下"流程图"
在chrome浏览器新建标签页,然后地址栏输入
显示效果如图
程序保存就是"导出" .
本文程序参考了https://blog.csdn.net/hu5566798/article/details/81058485的代码,在此表示感谢!