For this project you need Scratch Link and a LEGO Wedo 2.0 kit (See? I told you it was a pay-to-play!). Build a joystick (If you're having trouble, just watch Terra Minds's YouTube video "LEGO WeDo 2.0 Joystick with Tilt Sensor | Step-by-step Building Instructions | STEM". Position the light of the Smarthub away from you when using.
If you're wondering, I got this at a discount.