Hello Guys,
I am currently starting on a product that needs an IMU to get orientation and speed information. For the orientation part the easiest way (in my opinion) is to select an IMU with a DMP that supports quaternion output. I have experience using the MPU-9150 and it looks like the MPU-9250 would be the perfect choice. However, we need to evaluate cheaper alternatives, perhaps even without magnetometer as we can derive and correct the absolute orientation (more or less) by finding the gravity vector in the accelerometer data.
Looking at some of the available options, I see the ICM-20948, ICM-20648 and ICM-20689 have a DMP on board. However, I can not find in any documentation if this DMP in those chips output quaternions as well.
Can anyone please enlighten me?