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erfan last won the day on June 27 2019

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About erfan

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  1. erfan

    AUTO Take off mode

    Hello is there anyone who could do auto take off mode (not auto mission)using pixhawk ? i.e: using a transmitter by a switch it shall take off to a specific height . I would appreciate any help . my pixhawk is up-to-date also which is v4.0.5. But there is not such a parameter in my pixhawk which is listed in link below : (e.g. TKOFF_THR_MAX ) see this link also : @Spitfire76
  2. erfan

    crash after landing

    does it really matter what kind is it ? It was Tarot 960 yes it was level
  3. erfan

    crash after landing

    Hello everyone, I flow with my drone and everything was well except the ending which the drone at first landed and then started to take off for 20-50 cm and fall on the ground. the landing was auto landing but as soon as I saw the drone is taking off ( only from one side) I tried to disarm it. here is the log. is there anyone who could help me to find out what was the reason ? @Spitfire76 2019-11-22 10-03-28.bin
  4. erfan

    Auto mission

    Hello everyone, I want to write a mission to have a totally Autonomous Flight using pixhawk and mission planner for my hexacopter. point 1 : even taking off I want to have it auto without using of transmitter . point 2: I want to fly indoor but have GPS inside. Question : is it possible to write let's say take off autonomously and 1m go forward from the starting point and then 1 m left from the starting point and then 1 m back ward and then land ? does anyone have any experience how to do it ? @Spitfire76
  5. erfan


    so my parameters are set as : INS_POS1_X, INS_POS1_Y, INS_POS1_Z all to zero and GPS_POS1_X, GPS_POS1_Y, GPS_POS1_Z all to zero so you mean there is not need to change the position according to the COG ? if Yes any way to Find the exact COG ? I have put my pixhawk exactly in the center of the frame above one damping plate and above to that my GPS with 15 cm height. @Spitfire76
  6. I assigned servo 8 for landing gear and channel 9 to a switch on transmitter. and all now is working fine. I don't know why by connecting the to the AUX servos the landing gear was not functioning .
  7. erfan


    Hello, I have a question regarding to the position of GPS/Compass I am only using External compass at the height of 15 cm from the pixhawk and I disabled the internal compass of pixhawk . So I ONLY have one External Compass used for the system is there any parameter to change regarding to the position of compass? what If I want to locate it somewhere else not in the center of gravity? can any one help with that ? @Spitfire76
  8. YES when landing it deploys fine with using the switch and also automatically when the copter is armed and the landing mode is selected. However , when taking off the landing gear does not retract or better to say it tries to retract in several steps but no success!!!!? in the satus display for ch9 i can find the following : ch9 in min: 982 ch9 in max: 2006 ch9 out min: 1000 ch9 out max: 2000 however I would like to mention the landing gear is working fine when its connected to the receiver while deploying and retracting. In addition, when I connect the servo motor
  9. what are your servo9_Max and servo9_Min set at ? my setup are as follows , please correct me if I am wrong SERVO9_FUNCTION: 29 SERVO9_MAX : 1900 SERVO9_MAX : 1100 CH9_OPT :29 ch9in min : 982 (can be found in status and radio calibration ) ch9in max : 2006 (can be found in status and radio calibration ) LGR_SERVO_DEPLOY 1000 LGR_SERVO_RETRACT 2000 LGR_STARTUP 2 I connect the negative and signal of landing gear to the AUX 1 (servo_9 ) and I power the servo rails via a BEC
  10. Yes I will reboot everytime I make any changes , yes please that would be good, i have no idea what is wrong with that
  11. No I am not sure How it is triggered ? (for me is TL6X001 landing gear ) what I suppose it is also based on change in PWM, I tried what you said gain the same result, when closing there is no problem it closes smoothly. but when opening it tries to open up in several steps (it opens and closes consistently). I also tried with Receiver it worked fine .but don't know where is the problem ? @Spitfire76
  12. I changed servo9_Function to 29 and ch9_OPT to 29 (Channel 9 on the radio is mapped to a switch) what happens is when I manually open (deploy) the landing gear it will be open and at the same time closes ( in several steps until it reaches to opening step of landing gear). Do you know what is the reason ? But when I manually close (retract) the landing gear , it will be done just in one step meaning at one stage it will be closed. @Spitfire76
  13. I have set BRD_PWM_COUNT=4 meaning the AUX 5 and 6 are as relays . I have also mapped channel 6 ad relay on and off. additionally, I have power up the flight controller from the behind( servos) But as I check the voltage on the relay (AUX5 and 6) and change the switch on the transmitter. the voltage is no voltage change!? how can I check if this is working fine or not? Thanks
  14. So you mean when a flight controller wants to control a function (rectractable landing gear) Then a servo*_function needs to be mapped ,right? Now the question is in case of triggering any mode forexample RTL or AUTO the mission or the location is saved inside the SD card of the flight controller , why we only map them only to a input channel from receiver? @Spitfire76