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Avionics Engineer


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Long Range Surveillance Video Data Telemetry Android


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Umer replied to Zachary Eldridge's discussion Iphone and Android App Ground Control Station with Mavlink is in Progress
"you have connected only the rx and tx of 3dr radio with bluesmirf. What about the rts and cts pins at both 3dr radio and bluesmirf, no need to connect them? "
Jan 9, 2013
Umer commented on Bart's blog post Copter-GCS with Mission Support and more
"I am trying to use copter gcs on htc flyer. I have 3dr radio and bluetooth bluesmirf gold. How the pin connections are to be made between 3dr radio and bluesmirf. I have right now connected the tx, rx, cts and rts of bluesmirf with 3dr radio tx, rx,…"
Jan 9, 2013
Umer commented on Bart's blog post Copter-GCS with Mission Support and more
"More specifically can XBee Explorer Regulated be used with 3dr radio?"
Jan 7, 2013
Umer commented on Bart's blog post Copter-GCS with Mission Support and more
"Can this setup be used with the 3dr radio?"
Jan 7, 2013
Umer replied to Umer's discussion Adaptive tuning Fuzzy PID controllers
"So SITL is the way to go. Now for gain scheduling PID controller using fuzzy logic, either:
a) I need to develop arduino code for fuzzy logic from scratch, as i dont find it anywhere. OR
b) Design the Fuzzy logic control in MATLAB/ Simulink and targ…"
Aug 7, 2012
Umer replied to Umer's discussion Adaptive tuning Fuzzy PID controllers
"Actually Now i am the point where i need a matlab/ simulink model for APM pid control. I need to ask
1. Any link explaining the APM pid control loop in detail so that i may start making matlab/ simulink model?
2. Any work previously done regarding A…"
Aug 4, 2012
Umer posted a discussion
Hello all,For my MS thesis, i am proposing "Adaptive tuning Fuzzy PID controllers". Is this topic viable?Secondly i would start off by simulating this in Matlab/ Simulink. For this i need to have Matlab / Simulink model of the PID controller for ard…
Aug 3, 2012
Umer replied to Marco Robustini's discussion ArduCopter 2.7 Released!
"Hey, i am testing jdrones hexa 880 kv for altitude hold using arducopter 2.7 on apm2. I want to test the altitude hold in my backyard that is not a big area. I may rise the arducopter to a height of 10-12 feet. The wiki recommends 20 m height for th…"
Jul 26, 2012
Umer replied to Randy's discussion ArduCopter 2.6 released!
"I have a query regarding arducopter 2.6:
For 880 Kv motors, value of Rate Roll P should be 0.09-0.1 (as stated in wiki) or 0.110 (as mentioned in mission planner Med P = 0.110) ?"
Jul 23, 2012
Umer left a comment for Anis Nielsen
"Hey Anis, In some previous conversation, you told me to remove the high rise landing gear from the Arducopter jdrones hexa while in testing phase. Do you have any picture etc of the hexa without landing gear? How did you balance it, since the lipo b…"
Jun 26, 2012
Umer commented on Muthanna A. Attyah's blog post ArduCopter 3DR-B Indoor Hovering Test
"Actually i am trying to do the same hovering test, but when i try to fly the Arducopter Hexa APM1 v2.6, in Stabilize mode, it moves in the backward direction instead of lifting and landing at the same location.
https://www.youtube.com/watch?v=hMQvY_B…"
Jun 25, 2012
Umer posted a discussion
Hello all, I tired to fly the Arducopter Hexa jdrones 880Kv APM1 v2.6, in Stabilize mode at a lower height in no wind condition. Problem is it is moving in the backward direction while i am applying the throttle onlyhttp://www.youtube.com/watch?v=hM…
Jun 25, 2012
Umer commented on Muthanna A. Attyah's blog post ArduCopter 3DR-B Indoor Hovering Test
"Hello,
Stock PIDs?
You fly using linear throttle or throttle exponential?"
Jun 24, 2012
Umer replied to Randy's discussion ArduCopter 2.6 released!
"Hello all, I tired to fly the Arducopter Hexa jdrones 880Kv APM1 v2.6, in Stabilize mode at a lower height in no wind condition. Problem is it is moving in the backward direction while i am applying the throttle only
https://www.youtube.com/watch?v=h…"
Jun 24, 2012
Umer replied to Randy's discussion ArduCopter 2.6 released!
"Hello,
Ok i switched to Arducopter V2.6 Hexa X for my jdrones Hexa 880 Kv; the only changes on the stock pids i made are:
Angular Rate Control P 0.110  (for medium motor size)
Stabilize Control P 3.5
Any other param that needs to be changed?
What is…"
Jun 18, 2012
Umer posted a discussion
Recently, I tested the jdrones Arducopter Hexa V2.5.5, stock pids with Rate Roll P = 0.1, Stabilize control P = 3.5, I = 0.01, Imax = 2.000, Trim throttle = 450.Flight: Stabilize modeI controlled the hexa using only the throttle stick; No Roll/ pitc…
Jun 17, 2012
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