I have been working on a project and seems like we have hit a bit of a roadblock, being relatively new to arduino, on a way to get absolute reference point for wearable tracking, maybe the approach needs to be different but I wanted to ask if anyone thinks there is a way to accomplish this using current approach, or if there is a better way:
Goal: we wish to track relative movement of hand compared to forearm
Current approach: use 2 IMU 9250 sensors, one on hand, one on forearm, and try using the difference in relative movement. So if the hand and forearm move together, we don't care, but if hand moves in relation to forearm in any direction, capture the difference in BOTH value, as well as orientation (hand moves + hand moves in downwards direction)
This is a bit challenging to find since the raw values go roughly from 0 to positive 16,000 (90 degrees) then decrease back to 0, giving us raw values we cannot distinguish from up or down (relative to the forearm, not Earth)
Would love to get some help/thoughts from anyone!!!