About

Gender

Male


Location

Seattle, WA


About Me:

BA: Mechanical Engineering MS: Aeronautical Engineering MS: Electrical Enginnering


Please tell us a bit about your UAV interest

www.seattle.intel-research.net/people.php


Activity Feed

Louis LeGrand commented on Louis LeGrand's blog post DIY Solar Airplane, Rev 2
"Hi Omer.  My set of 5 Powerfilm solar cells all together deliver about 2.5 W under perfect conditions.  They are not particularly efficient on a W/m^2 basis - only about 7%.  There are other cells with much higher W/m^2 metrics.  However, the cells…"
Apr 26, 2011
Louis LeGrand commented on Louis LeGrand's blog post DIY Solar Airplane, Rev 2
"Hi Jack.  More technical details about the solar cells, etc are given in the rev 1 post (http://diydrones.com/profiles/blogs/diy-solar-airplane)"
Apr 26, 2011
Louis LeGrand posted a blog post
     Here is my new solar airplane (the previous version is here).  As before, it uses the Parkzone Vapor's radio and motor, plus five Powerfilm solar cells.  In parallel with the solar cells, I include a tiny 20mAh lipo battery to keep the radio…
Apr 25, 2011
Louis LeGrand commented on Curt Olson's blog post Shadow Cam
"I am just brainstorming here, but imagine a sensor whose output was the direction of the sun.

Since you know the direction of the sun in the ECEF coordinates, you could partially determine your own attitude in ECEF coordinates. There would be an…"
Oct 18, 2010
Louis LeGrand commented on Curt Olson's blog post Shadow Cam
"Nice work! The video provides definite proof that your attitude estimation is working very well.

It occurs to me that it should be possible to run a system the other way. That is, by tracking your shadow (or the sun) you can estimate your attitude…"
Oct 17, 2010
Louis LeGrand posted a blog post
I have been tinkering with solar powered RC planes this summer. The photos above shows the latest incarnation. This model uses the Parkzone Vapor's radio gear and motor ( http://www.parkzone.com/Products/Default.aspx?ProdID=PKZ3380 ), plus five…
Sep 14, 2010
Louis LeGrand commented on Jordi Muñoz's blog post ArduIMU+ V2 (Flat) now available for preorder..
"Whoops,

Never mind my previous post. I was looking at the Razor (Sparkfun) schematics, not the ArduIMU+ schematics. The Razor doesn't have a pad for SPI slave select, but it looks like the ArduIMU+ does (aka PWM1).

Louis"
Feb 10, 2010
Louis LeGrand commented on Jordi Muñoz's blog post ArduIMU+ V2 (Flat) now available for preorder..
"Hi Jordi,

Cool board! I am interested in integrating this board into a larger system. Ideally I would be able to talk to it over SPI, i.e. using the Atmega as SPI slave. The one thing that seems to be missing for this to be easily doable is a pad…"
Feb 9, 2010
Louis LeGrand commented on Moss's blog post C++ or Java?
"I work at Intel Research, where we do a lot of machine learning research, AKA AI. We are closely affiliated with the University of Washington, which is an excellent school for CS. BTW, what schools are you considering for graduate studies? I am a…"
Dec 21, 2009
Louis LeGrand commented on William Premerlani's blog post Video of IMUDOT demonstration of the direction-cosine-matrix algorithm
"I agree with OliverD, for the most part. The InertiaDot was not designed for UAV's. It is mostly designed to be worn by people. Further, it uses some pre-production parts from a company I cannot name (we signed a NDA). Bill's UAVDevboard is…"
Apr 20, 2009
Louis LeGrand commented on William Premerlani's blog post Video of IMUDOT demonstration of the direction-cosine-matrix algorithm
"I agree with OliverD, for the most part. The InertiaDot was not designed for UAV's. It is mostly designed to be worn by people. Further, it uses some pre-production parts from a company I cannot name (we signed a NDA). Bill's UAVDevboard is…"
Apr 20, 2009
Louis LeGrand commented on William Premerlani's blog post Video of IMUDOT demonstration of the direction-cosine-matrix algorithm
"The devices we develop at Intel Research are not typically sold. They are built to facilitate the various research project that we are working on here in the lab (unfortunately no UAV's). However we do occasionally share devices with other…"
Apr 17, 2009