I am currently working on a school project in which I want to make a computer input with an accelerometer attached to ones head (for people with a certain disability). So the users are supposed to control the cursor by moving their head.
I was thinking about buying the Memsic 2125 as accelerometer but it's pretty expensive for me (about 25 dollars) since I have a really low budget. My dad said there are cheaper variants available but I haven't found any yet.
The accelerometer must be accurate enough to detect small movements (small angles) in the 3 axes. Does anybody know a good accelerometer I can use? Or is the Memsic 2125 the best choice?