Step 2: Demo Sketch. Connect your board (in upload mode if need be) to your computer and go to File | Examples | VectorDisplay | circles in your Arduino IDE. Click on the upload button (right arrow). Start the VectorDisplay app on your Android device. Plug your board into the Android device via USB OTG cable.
It's cheap and easy to hook your console up to your phone or tablet to use it as a display, as long as your device supports USB-C On The Go (OTG) and is comp mkh1IQm.