Cao Zhang
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  • Chongqing
  • China, mainland
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500 Heli ALT_HOLD success . I find the reason failure . ThankS development group .

Started this discussion. Last reply by Rob_Lefebvre Mar 17. 2 Replies

In last 3 weeks ,It failure on ALT_HOLD , But Now success :I find the reason failure : Important : The APM 3.1.2 IN3 (RC CH6)must near 1520uS ,so that it can ALT_HOLD success .I had adjusted the…Continue

Surprising the same 500Heli ALT_HOLD ok in 2.73 But failue in 3.1.2 Show Pictures&Photos & param file

Started this discussion. Last reply by Alexey Kozin Mar 11. 5 Replies

It is very surprising , The same 500Heli ,All no change But CH3 -- Esc connection .In 2.73 ALT_HOLD ok , But in 3.1.2 it Failue .param file here . Who can give me Help .ThankS .…Continue

Thanks 3.1.2 Heli Development Group ! -- But Altitude_HOLD not work , See My param file

Started this discussion. Last reply by Jason Day Apr 9. 8 Replies

First Very Thinks 3.1.2 Heli Development Group !My 500 Heli can flight more stable .But when I switch to ALT_HOLD mode , the 500 Heliflight 2 meters to 4 meters hight and any more…Continue

Bug Report : Heli 3.0.1,,COMPASS_ORIENT not correct When not 0 .

Started Sep 23, 2013 0 Replies

Dear Sir : I have found that when I use APM2.5 Heli 3.0.1,the   COMPASS_ORIENT not correct  When not 0 .AHRS_ORIENTATION 6  and   COMPASS_ORIENT 6   , COMPASS_ORIENT not correct   AHRS_ORIENTATION 8 …Continue

 

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Jason Day replied to Cao Zhang's discussion Thanks 3.1.2 Heli Development Group ! -- But Altitude_HOLD not work , See My param file
"nice to see you are agreeing with me, you still havn't read the description... Filter frequency to ask the MPU6000 to apply to samples. This can be set to a lower value to try to cope with very high vibration levels in aircraft. The default…"
Apr 9

Developer
Rob_Lefebvre replied to Cao Zhang's discussion Thanks 3.1.2 Heli Development Group ! -- But Altitude_HOLD not work , See My param file
"If it is set to 0, it goes to default (which is 20) not "off".  If you set it to 1 or 2 or some other invalid number, I believe it will also go to default.  The only valid options really are 5, 10, 20, 42 and 98?"
Apr 9
Jason Day replied to Cao Zhang's discussion Thanks 3.1.2 Heli Development Group ! -- But Altitude_HOLD not work , See My param file
"Out of curiosity, if 0 is enabled, what does setting it to 1 or 2 do?"
Apr 9
Jason Day replied to Cao Zhang's discussion Thanks 3.1.2 Heli Development Group ! -- But Altitude_HOLD not work , See My param file
"Yup, there you go, it says it should default to 20, but in Cao Zhang's param file, it is clearly set to zero. (as it was also in mine)"
Apr 9

Developer
Rob_Lefebvre replied to Cao Zhang's discussion Thanks 3.1.2 Heli Development Group ! -- But Altitude_HOLD not work , See My param file
"What comment are you seeing?  Here is what should show up: "
Apr 9
Jason Day replied to Cao Zhang's discussion Thanks 3.1.2 Heli Development Group ! -- But Altitude_HOLD not work , See My param file
"really? have you looked at your param's file? its not a 1,2,3 type variable, it's a number in hertz for the filter. My tricopter tried to go into orbit when NS_MPU6K_FILTER was set to 0. it holds altitude when set to 20, the alt hold…"
Apr 9

Developer
Rob_Lefebvre replied to Cao Zhang's discussion Thanks 3.1.2 Heli Development Group ! -- But Altitude_HOLD not work , See My param file
"If the filter is set to 0, then it is default, which is 20Hz, so changing it to 20 should have no effect. "
Apr 8
Jason Day replied to Cao Zhang's discussion Thanks 3.1.2 Heli Development Group ! -- But Altitude_HOLD not work , See My param file
"your INS_MPU6K_FILTER is set to 0. it's a noise filter for the accelerometers.  set it to 20 and see how you go from there. Mine tried to head for the moon every time I was tweeking alt hold. Jason "
Apr 6

Developer
Rob_Lefebvre replied to Cao Zhang's discussion 500 Heli ALT_HOLD success . I find the reason failure . ThankS development group .
"I'm guessing he's using a heli profile in the radio, and using a collective pitch curve.  Ch6 is probably the "collective" channel, which I assume he has routed into Ch3 Input.  This is all covered in the wiki already…"
Mar 17

Developer
Randy replied to Cao Zhang's discussion 500 Heli ALT_HOLD success . I find the reason failure . ThankS development group .
"Congrats.  I'm surprised ch6 matters.  That's input channel 6?  So you're tuning something?"
Mar 16
Cao Zhang posted a discussion

500 Heli ALT_HOLD success . I find the reason failure . ThankS development group .

In last 3 weeks ,It failure on ALT_HOLD , But Now success :I find the reason failure : Important : The APM 3.1.2 IN3 (RC CH6)must near 1520uS ,so that it can ALT_HOLD success .I had adjusted the length of the Heli link rod , Angle +7 of main rotorwhen RC CH6 at 1520uS (IN3) ... 500 Heli ALT_HOLD success !!ThankS development group give us V3.1.2 software .…See More
Mar 15
Alexey Kozin replied to Cao Zhang's discussion Surprising the same 500Heli ALT_HOLD ok in 2.73 But failue in 3.1.2 Show Pictures&Photos & param file
"maybe wrong accel calibration INS_ACCOFFS_Z , 0.794its must to be between 1.1 and 0.9"
Mar 11
Cao Zhang replied to Pat's discussion Automatic Landing Success but the Loiter Mode is really awkward
"Congratulation  Automatic Landing Success !  By the way : Did your Heli ALT_HOLD very nice (V3.1.2 software) ?"
Mar 6
Cao Zhang replied to Cao Zhang's discussion Surprising the same 500Heli ALT_HOLD ok in 2.73 But failue in 3.1.2 Show Pictures&Photos & param file
"Whould you please write me a Email,So that I can reply you The New Logs file today.   And incidentally send a Heli V3.1.2 HEX file ,is more Thanks .   Here is the new Logs file . Just Now Flight ...  "
Mar 5

Developer
Rob_Lefebvre replied to Cao Zhang's discussion Surprising the same 500Heli ALT_HOLD ok in 2.73 But failue in 3.1.2 Show Pictures&Photos & param file
"Cao, I can't seem to download those logs for some reason? I doubt very much that your hex file has been altered by the internet.  Chances are your problem is due to vibration."
Mar 3
Cao Zhang replied to Cao Zhang's discussion Surprising the same 500Heli ALT_HOLD ok in 2.73 But failue in 3.1.2 Show Pictures&Photos & param file
"Thank you very much . Here is the Logs .   The problem still existence . When I switch to ALT_HOLD mode,The Heli climb High and High ...   I guess may be the V3.1.2 HEX file be tamper by the internet service dealer .(such as DNS…"
Mar 2

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About Me:
I am a Palyer of APM 2.5 ,I can du some CNC work .
Please tell us a bit about your UAV interest
I have installed the APM 2.5 on my 500 Hilecupter .
Hometown:
Chongqing China

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