Geoff
  • Male
  • Stanford, CA
  • United States
Share

Geoff's Friends

  • tycinis

Geoff's Discussions

MediaTek Mode

Started this discussion. Last reply by Geoff Sep 23, 2010. 1 Reply

 

Geoff's Page

Latest Activity

Geoff commented on Jaeyoung Lim's blog post Non-planar quadrotor layout flight test!
"This configuration is not symmetric about all of the body axes. The vertical separation of two neighboring motors introduces cross moments of inertia when expressing the inertia tensor in the body axes. If the x-axis is to the right or left in your…"
Oct 21, 2015
Paul Mather left a comment for Geoff
"Geoff, I just got done listening to the PODcast from Sunday. If you have any further questions about the Remzibi OSD, I'd be happy to answer them. Yes, it is kind of a home-brew project. He's sold about 150 so far and we've had quite…"
Jun 8, 2015
Geoff commented on Jose.L.Jr's blog post The impact of humidity on airspeed measurement
"You should not be scheduling gains on true airspeed! The aircraft dynamic scale with dynamic pressure, which is essentially the same as the impact pressure measured by a pitot-static system at the speeds model aircraft / small UAS fly. The only…"
Jun 5, 2015
Geoff commented on Chris Anderson's blog post $300,000 for a Raven?
"There are multiple airplanes in each system, four I believe. The $35,000 for each airplane sounds about right, the rest is for GCS, training, spares, etc..."
Dec 29, 2010
Geoff replied to Geoff's discussion MediaTek Mode
"That problem is solved. Just needed to bump up the baud rate from my PIC to computer to be equal to or faster than the GPS to PIC so data won't get lost... Next question, what are the commands to do the following: 1. Change the baud rate 2.…"
Sep 23, 2010
Geoff posted a discussion

MediaTek Mode

I'm testing the the MediaTek GPS module on a project where it is communicating with a dsPIC33F microcontroller.As understand it, some of the units have been flashed with a custom firmware that communicates with a binary protocol. After figuring out that it was communicating at a baud rate of 38400 instead of the expected default of 9600, I was able to read the following:$PGMOD,,,,,,,,,This is followed by about 20 more ,,,,,,,,, 's every second. I've left it outside for a while and verified that…See More
Sep 23, 2010
Fahad Naseer commented on Geoff's blog post UAV Altitude Record
"how the helical antenna is for uav?"
Nov 11, 2009
Dimitar Kolev commented on Geoff's blog post UAV Altitude Record
"Great work, Geoff! I would be interested to take a look on BOM, schematics, etc. as you offered. Here is my email: dkolev@hotmail.com"
Sep 22, 2009

Profile Information

Hometown:
Chicago, IL

Geoff's Blog

UAV Altitude Record

Posted on September 19, 2009 at 4:39pm 15 Comments

Hi all,



Just wanted to fill you in on a small UAV altitude record that was just set (still unofficial at the moment) using an autopilot similar to the ones discussed here. Here's a story about it: http://news.stanford.edu/news/2009/september14/airplane-self-pilot-091809.html



The record attempt was made by a group of graduate students who took a course this spring in the Aero/Astro Department at Stanford University. I was the teaching assistant for the course. This year the… Continue

Comment Wall (3 comments)

At 1:27am on May 10, 2009, Rob said…
Lol what's up Geoff!
At 6:35am on May 14, 2009, Rob said…
I wish, more of a pipe dream, but I joined either way.
At 8:20pm on September 28, 2009, Paul Mather said…
Geoff, I just got done listening to the PODcast from Sunday. If you have any further questions about the Remzibi OSD, I'd be happy to answer them.

Yes, it is kind of a home-brew project. He's sold about 150 so far and we've had quite a bit of interest because of DIYDrones adding it to their store. We also just got the OSD working using the single GPS connected to the ArduPilot.

Remzibi is from Poland, I'm from Ohio. Here are a few links about the project:

http://www.rcgroups.com/forums/showthread.php?t=921467
http://www.rcgroups.com/forums/showthread.php?t=921467
http://remzibi.happykillmore.com

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

Join DIY Drones

 
 
 

© 2017   Created by Chris Anderson.   Powered by

Badges  |  Report an Issue  |  Terms of Service