Load the project onto the Pi, and navigate to the folder in the Pi SSH session. Then, run: 

sudo node driver-bot.js

Once you see Board Initialized, feel free to try out our new functions:

goForward(100) // start moving both motors forward
stop() // and stop
goBackward(50) // go backward at half the previous speed
stop()
goForward(100)
turnRight(100)
turnLeft(200) // a faster left turn
spinRight(255) // robots can't get dizzy, maximum fastness
spinLeft(100)
stop()

And that's it—you've written all the code you need to drive a two-wheeled robot!

As a bonus project, think of a way you could drive the bot without having to type out the function names each time!