Phillip Schmidt
  • Male
  • United States

Phillip Schmidt's Friends

  • Darren Tomkins
  • Simon D. Levy
  • Ricky E Prasetyo
  • chrisa
  • Jake
  • Bob Doiron
  • William Premerlani

Phillip Schmidt's Groups

Phillip Schmidt's Discussions

Simple IMU - My quaternion based complimentary filter

Started this discussion. Last reply by Phillip Schmidt Feb 18, 2016. 26 Replies

Hi all,  I have recently started writing a series of blog posts that detail how I have chosen to program my own IMU complimentary filter.  I have done this for my own entertainment and as a learning…Continue

Tags: gyroscope, magnetometer, gps, accelerometer, quaternion

Arduino Due Multi-Copter I/O Shield

Started this discussion. Last reply by Phillip Schmidt Jun 16, 2014. 10 Replies

Hi all,  I have begun a new project that relates to multi-copters.  I have designed a shield for the arduino Due that makes using one for a multi-copter project a bit more convenient (or really…Continue

Scratch Built Quadcopter with Inertial Position Tracking

Started this discussion. Last reply by Phillip Schmidt Jun 26, 2012. 29 Replies

Hi all,  A couple of weeks ago I got bit by the bug to build a quadcopter from scratch.  I am purchasing the motors, ESC, battery, propellors, ect..., but I am designing and building the frame from…Continue

Tags: Accelerometer, gyro, IPT, Tracking, Inertial


Phillip Schmidt's Page

Profile Information

About Me:
I'm an Mechanical Engineer who works a manufacturing process engineer. I've loved everything that flies since I was old enough to look up.
Please tell us a bit about your UAV interest
Building from scratch a Quadcopter and incorporating absolute inertial position tracking.
Minneapolis, MN

Comment Wall (2 comments)

At 12:19pm on February 23, 2016,
William Premerlani



I just noticed that last April you asked for the above document.

Best regards,


At 5:03pm on February 24, 2016,
William Premerlani

Hi Phil,

Just to make sure we are "on the same page", the document that I sent you addresses the issue of axis misalignment between magnetometer and accelerometer/gyro (IMU) sensors that you can run into when the magnetometer is mounted physically separate from the IMU and is not aligned with the IMU. As long as there is some care in mounting the magnetometer to make sure the axes of the magnetometer are parallel with the axes of the IMU, there are no misalignment issues. If not, even a small amount of misalignment causes problems because of the large vertical component of the earth's magnetic fiels.

The document does not address magnetometer offset and calibration issues. Those topics have been well covered by others.

Best regards,


You need to be a member of DIY Drones to add comments!

Join DIY Drones



Season Two of the Trust Time Trial (T3) Contest 
A list of all T3 contests is here. The current round, the Vertical Horizontal one, is here

© 2019   Created by Chris Anderson.   Powered by

Badges  |  Report an Issue  |  Terms of Service