assert(Rumble.isInserted(), "No rumble device inserted")
while not Keys.newPress.Start do
Controls.read()
if Keys.newPress.A then Rumble.set(true) end
if Keys.newPress.B then Rumble.set(false) end
screen.print(SCREEN_UP, 0, 0, "Press START to quit")
screen.print(SCREEN_DOWN, 0, 0, "[A]: Rumble ON")
screen.print(SCREEN_DOWN, 0, 8, "[B]: Rumble OFF")
render()
end