Harry Lister
  • Male
  • Clarksburg, MD
  • United States
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  • Ian Beaney
  • Winfried Uphues
  • Logan Greenlee
  • Greg Fletcher

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Latest Activity

Harry Lister commented on Chris Anderson's blog post LA Times op-ed: Overturn RC rules and make UAV hobbyists get licenses!
"It's obvious the OP ed tool is exactly that.  No amount of logic or explanation can excuse or hide the pathological desire to control free people, no matter how small the infringement.  They continually want surrender…"
May 10
Harry Lister replied to Sam Halderman's discussion ArduPilot (Legacy) and New ArduIMU Design in the group ArduPilot (legacy) User Group
"Good job Ajienux, I'll give those fixes a try.    Winfried, I havent played with this lately.  I deleted my blog because it had code that wasnt as good as what is now available and I didnt want anyone to get steered wrong."
May 9
Harry Lister commented on Jordi Muñoz's blog post ArduIMU V3 ready for pre-order and check our new color!
"No need to tweak it, that #$%^ works."
Jan 24
Harry Lister commented on Harry Lister's blog post ArduIMUV3 Works with V2 software
"Like I said, I'm waiting for the experts to come up with something better and they did. Go here and download the latest version 1.9. http://code.google.com/p/ardu-imu/downloads/list Use the compass example in the library folder to get the…"
Jan 24
Edipo Santos commented on Harry Lister's blog post ArduIMUV3 Works with V2 software
"We, mere mortals,  only remains to wait. "
Jan 12
Harry Lister commented on Harry Lister's blog post ArduIMUV3 Works with V2 software
"If youre talking about Jose's Quad program, I plan to make the same change to that so it will work with V3 IMU.  I want it to work with a Tricopter and will need to change that part.  I think I can do it, if I modify the mixing. …"
Jan 12
Edipo Santos commented on Harry Lister's blog post ArduIMUV3 Works with V2 software
"Very nice. Too much work left to allow arduimu V3 read ppm and control servos? I think arduimu is the perfect solution for camera stabilization. "
Jan 8
Greg Fletcher commented on Harry Lister's blog post ArduIMUV3 Works with V2 software
"Excellent work. I know how it feels when you finally get an idea to work. I was going to do the same thing as you with the V3. Since you did it all ready(I looked at your code), it just what I was going to do. I have some other cool tricks to use…"
Dec 22, 2011
Harry Lister replied to Sam Halderman's discussion ArduPilot (Legacy) and New ArduIMU Design in the group ArduPilot (legacy) User Group
"If anyone is interested, I got the new hardware to work with the V2 software.  Check my blog and you can try the code for yourself with the V3 hardware.  My next project will be to try to get the Ardupilot to control a…"
Dec 21, 2011
Harry Lister commented on Jordi Muñoz's blog post ArduIMU V3 ready for pre-order and check our new color!
"I found it, I changed GRAVITY to 4096 in DCM and in the scaling of accel vector, I used 1024/981.  IT WORKS. :).  Pitch and Roll are very very close to dead on.  The Compass adjusted yaw drift seems to work, doesnt wander…"
Dec 20, 2011
Harry Lister commented on Harry Lister's blog post Hacked ArduIMUV2 and V3 test code - Kinda Works, needs expert
"I now know why the pitch and roll drift.  The ArduIMU 1.6 DCM code has drift_correction() and the part that corrects the pitch and roll gyro drift uses the accelerometers.  This originally used Analog to digital conversion and GRAVITY was…"
Dec 18, 2011
Harry Lister commented on Harry Lister's blog post Hacked ArduIMUV2 and V3 test code - Kinda Works, needs expert
"I give up on the EM406.  I'm just going to let it sit for a month and see if I regain any control over it.  As for the hack, one thing I cant figure out is if the drift correction in DCM, applies to all the gyros.  It seems like…"
Dec 17, 2011
Harry Lister commented on Harry Lister's blog post Hacked ArduIMUV2 and V3 test code - Kinda Works, needs expert
"I'm still messing with it.  I turned the gains down again to about .05 and I put some code back in. This is where my lack of knowledge slows me down.  The main loop calls up Read_adc_raw() and that function puts values in an…"
Dec 17, 2011
Harry Lister commented on Harry Lister's blog post Hacked ArduIMUV2 and V3 test code - Kinda Works, needs expert
"I tried them again with the gains at .10 and it is much more stable.  Makes better sense now, thanks. "
Dec 16, 2011
Gerry Lichter commented on Harry Lister's blog post Hacked ArduIMUV2 and V3 test code - Kinda Works, needs expert
"With the serial monitor open what are your gyros reading when the imu is at rest? Try adjusting these and see if you can make it worse/better by increasing/decreasing the numbers. #define Gyro_Gain_X 0.96 //0.92 //X axis Gyro gain#define Gyro_Gain_Y…"
Dec 15, 2011

Profile Information

About Me:
Just messing around with this stuff, but I'd like it to atleast work.
Tell us a bit about your UAV interest
I build planes, mess with radios and stuff.
Hometown:
Frederick

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