Things you will need:
1- Putty(SSH Client)
2- Internet connectivity on your pi
1- Update and install all the essential files needed for the build
sudo apt-get update
---wait for the update to finish
sudo curl -sL https://deb.nodesource.com/setup_6.x | sudo bash -
To confirm the installation enter following
node -v 
I have a different version
2- Install the RPI-GPIO to access the Raspberry pins via nodejs
sudo npm install rpi-gpio
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