Cao Zhang
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  • Chongqing
  • China, mainland
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Px4_AC3.2 beta : Heli : The Ch8out is aways near 1500uS The ESC can not work.

Started Oct 3 0 Replies

I have buy a Px4FMU and Px4IO , try use it as Heli flight last month .Px4_AC3.2  beta rc10 : Heli : The Ch8out is aways near 1500uS.(1497--1506)uS See my picture please . I don`t konw how to correct…Continue

A Suggestions about PiKsi DGPS: only one set Radio need.(see my picture)

Started Sep 5 0 Replies

Only one set Radio system is needed . Save money and light weigth .Someone  can you help me to send this picture to PiKsi deverlorpment ??…Continue

APM Heli V3.15 vs V2.73 _ The most we holp is :::

Started this discussion. Last reply by Yannick Aug 15. 1 Reply

My English is limited , So I get the picture ...I holp 2.73 add INS_MPU6K_FILTER is the best ...2.73 after a long time Loiter the angle will not change .(it is very good) .3.15 can not .…Continue

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

 

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Cao Zhang posted a discussion

Px4_AC3.2 beta : Heli : The Ch8out is aways near 1500uS The ESC can not work.

I have buy a Px4FMU and Px4IO , try use it as Heli flight last month .Px4_AC3.2  beta rc10 : Heli : The Ch8out is aways near 1500uS.(1497--1506)uS See my picture please . I don`t konw how to correct it ??  If I use AC3.2 beta OCTA-rc10 firmware,the Ch1--Ch8out are 1100 ,it same good !! But Why in Heli mode , the CH8out not crrect…See More
Oct 3
Cao Zhang posted a discussion

A Suggestions about PiKsi DGPS: only one set Radio need.(see my picture)

Only one set Radio system is needed . Save money and light weigth .Someone  can you help me to send this picture to PiKsi deverlorpment ??See More
Sep 5
Yannick replied to Cao Zhang's discussion APM Heli V3.15 vs V2.73 _ The most we holp is :::
"Hi Cao! I think you have to increase the I-terms in Rate and Stabilize Controller. "
Aug 15
Cao Zhang replied to Randy's discussion ArduCopter-3.2 beta testing
"Dear sir : whould you please read this _____in  ArduCopter 2.x (traditional heli) (224) _____About :: :: APM Heli V3.15 vs V2.73 _ The most we holp is ::: I holp 2.73 add INS_MPU6K_FILTER is the best…"
Aug 15
Cao Zhang posted a discussion

APM Heli V3.15 vs V2.73 _ The most we holp is :::

My English is limited , So I get the picture ...I holp 2.73 add INS_MPU6K_FILTER is the best ...2.73 after a long time Loiter the angle will not change .(it is very good) .3.15 can not .See More
Aug 12
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

Profile Information

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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