Before you start experimenting with motion sensing, it's important to understand three key terms covered in the guide and in [https://www.youtube.com/watch?v=pQ24NtnaLl8 this video]. | Before you start experimenting with motion sensing, it's important to understand three key terms covered in the guide and in [https://www.youtube.com/watch?v=pQ24NtnaLl8 this video]. |