$ bash <( curl -sL https://particle.io/install-pi )Unfortunately my raspberry Pi is being remotely accessed by ngrok and so I can not record the LED so I uploaded the picture of the app to show that I've listened to the steps.
Part 2 : Node.js
$ node -h$ node -v$ cd ~/iot/lesson6$ node hello.js$ node http.jsRan the code and opened the server using chromium browser