Hi @abialevich1,
Thank you for contacting NXP Support!
You can find the AN4068, Embedded Orientation Detection Using the MMA8451, 2, 3Q - Application Notes on our website at the following link:
±2g/±4g/±8g, Low g, 14-bit Digital Accelerometer | NXP Semiconductors
Please go to Documentation > Filter By Application Note > AN4068.
I hope this information will be helpful.
Have a great day!
