Open node-red
To run node-red you need to write this cmd:
if you use putty on your computer to remote raspberry pi so you just open your browser and put the link: http://IP:1880 then you will get Node-RED as figure below. Note: if you don't use putty to remote so you need to type: http://127.0.0.1:1880/
Now you can enjoy with node-red.
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