Before I use Leap Motion as my project’s motion sensor I have to know Leap Motion’s sensor range. This range will determine how Leap Motion will be used in my project. After I read some article about it, I found out that Leap Motion have 150 degree angle of wide and 120 degree angle of deep .And with these information we can get roughly 24 inch wide and 13 inch height .
With around 20 inch deep we can use 5 inch (12 cm) for each Angklung so we will get 4 Angklung notes in each controller (Leap Motion controller). I think 5 inch is sufficient for user to interact with.