Ho-Chung Chang
  • 37, Male
  • Taichung
  • Taiwan
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Ho-Chung Chang's Friends

  • skystalker
  • mahmood
  • Steven Chang
  • Ro,King-Yang
  • Dynamic Orbit
  • latin105fm
  • lionel
  • Gary Mortimer
 

Ho-Chung Chang's Page

Latest Activity

Ho-Chung Chang commented on Ravi Gaddipati's blog post Working on an IMU
"But XC not support float type, It will be problem to develop algorithm via fix point."
May 28
Ho-Chung Chang commented on Chris Anderson's blog post APM 2.0 back in production!
"I had bought one. Nice AP. I Like it."
Mar 23
Ho-Chung Chang commented on Chris Anderson's blog post Microsoft announces sensor fusion support in Windows 8
"Nothing new... "
Jan 26
Ho-Chung Chang commented on Chris Anderson's blog post Visualize your PCBs in SketchUp
"Nice!! I had tried this one from my file. It's good then Eagle3D. "
Nov 17, 2011
Ho-Chung Chang commented on Geoffrey L. Barrows's blog post Chip design, open source, and DIY: Part 2, open source issues
"The XMOS maybe is a option.  "
Sep 8, 2011
Ho-Chung Chang commented on Chris Anderson's blog post New Mission Planner GCS feature: integrated OSD video!
"Cool UI  "
Jun 11, 2011
Ho-Chung Chang commented on Alpo Hassinen's blog post TaigaCam, ROBUST plane for aerial photography
"I like it !!"
May 19, 2011
Ho-Chung Chang commented on Hooks's blog post China copy Ardupilot mega - ½ price!
"Open Source of Ardupilot mega is good way to study uav, enjoy the uav, and improve uav by myself. Not for plagiarize to earn money. There are so many uav controllers, we can make it base them for sale. why copy? This will never progress."
May 19, 2011

Profile Information

About Me:
Hi! Everybody! My name is John come from Taiwan. I am interest in unmanned vehicle, my major research is in UGV in University, and UGV flight controller designed and RC flight are my hobby's.

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Ho-Chung Chang's Blog

FCU simple remote display.

Posted on February 19, 2011 at 10:30am 3 Comments

FCU simple remote display for flight testing.

Sometime I just wanta test specific feature and I don't want to carry a heavy laptop outdoor.

Just for fun.....XD…

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Flight controller crash....XD

Posted on January 24, 2011 at 5:30pm 4 Comments

The flight controller had  crashed at 15th flight testing in…

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Flight Control Board + GCS + GoogleEarth

Posted on August 24, 2010 at 8:00am 6 Comments

This week, I have used LabVIEW to develop the UAV monitor, and shown the map via google earth.

Initial design was embed the google earth in LabVIEW program. but I am not alway to watch the map.

It just be switched that I want show map.



The testing plane is Cessna.

During the testing, the proportional gain need be modified via airspeed for fitting the wide airspeed. I had alos added small integral gain for neutral point and… Continue

Flight Control Board trial run. part3

Posted on June 26, 2010 at 3:27am 1 Comment

Testing Item:

1.Kalman filter for attitude estimate.

2.900MHz,2W RF datalink.



Although the sensor board not be modified for GPS and airspeed sensor. but I have tested the attitude estime via Kalman filter and RF datalink first. It's sad that I forgot take DV to record it. Orz



The RF made in Taiwan is stable and higher data rate that CL4790.(I have both). But It need specific command to sent data. It is not suitable for general purpose.…

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Flight Control Board trial run. part2

Posted on May 15, 2010 at 7:15pm 2 Comments

I had got sensor board yesterday, and assembled it to FCB. It's disappointed that GPS can not receive the satellite signal. I think maybe SC-1513 GPS module's antenna layout is difference with MSTAR GPS modules.(I don't sure.XD).



But the 6DoF IMU run very well.





Bug Fix:

1.Gps antenna layout.…

Continue

Comment Wall (1 comment)

At 4:13am on February 25, 2010, Ro,King-Yang said…
Dear chang,maybe you are so busy.May I E-mail you ?
My E-mail :roking899@yahoo.com.tw

Best regards

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