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The Pi can run Linux with a graphical user interface it has USB and, RJ45 network connection, HDMI, audio jack.

Identical features with Arduino: GPIO pins, usb power, expansion shields, big user base, a lot of fun projects, cheap.

Boards starting from 5 to around 40 dollar, SteemPi most likely also will run on other Pi (clone) boards. (they need to be using / be compatible with the wiringpi library)

so you would say the Pi is better than Arduino?

i use Pi for things i need USB and internet acces and more power.
Arduino for "simpeler" IOT applications

Thank you. That's what I thought but I wasn't sure.

Some things can be done on both, the line is very thin.