Resolved! Question about LSM6DS3h : why Accel Z value OUTZ_L_XL (2Ch) & (2D) become negative when module acceleration downward but not upside down.
I am using this chip to get the X & Y angle of the unit. First read outOUTX_L_XL (28h) & 29hOUTY_L_XL (2Ah) & 2BhOUTZ_L_XL (2Ch) &2Dhand calculate Roll and Pitch. The angles works good in normal / slow moving or stable condition. Also need to det...