I am doing a project to build an autonomous lawn mower and I need to decide several type of sensor to complete the features. one of my features is the vehicles need to stop running when someone held it on the air. so i decide to use 9 DOF IMU for this features.
as i know that 9 DOF IMU already have 3 axes magnetometer that can read the angular yaw position. so i just confused that do I still need to add another gyro sensor to make sure that my lawn mower do a turning 180deg?
Thanks for any words on this.