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Everything posted by Spitfire76

  1. Spitfire76


    I am not sure about those parms as I have never had to change them. What is important though for the compass is the calibration. http://ardupilot.org/copter/docs/common-compass-calibration-in-mission-planner.html I found this to be easier if you place the drone on an office chair that can be rotated. Place it in a box when its upside down. Its also better to do this with the radio telemetry and not using the USB cable.
  2. Spitfire76


    I would not worry too much about having the compass/GPS not being exactly at the COG. What's important is to have the compass away from any electrical interference and the GPS an unobstructed view of the sky which if you have the module mounted 15cm above the platform is just fine. Of course the IMU in the flight controller works better if its located as close to the COG as possible.
  3. I replied to your recent post in the above thread. I imagine though that the Sky Viper is too small to add an onboard companion computer but I believe that you could use the Pi as a remote computer to run python scripts.
  4. http://ardupilot.org/dev/docs/skyviper.html It does look like their later version uses ArduPilot software and is currently on Amazon for less than $100. http://sky-viper.com/journey/
  5. This is a question that has often been asked in the forum and there are several threads that you might want to check out. For example.
  6. Yes there is a Mavic Mini in this video - these guys have way too much fun. I've built several of their foam board plane designs although much smaller than this one.
  7. I agree with @Av8Chuck 's suggestion of checking out http://ardupilot.org/copter/index.html. You can even setup an environment using their simulator to test your python scripts without having to use any drone hardware. http://ardupilot.org/dev/docs/sitl-simulator-software-in-the-loop.html#sitl-simulator-software-in-the-loop
  8. In that case I don't understand either why its not working. I have the same settings and mine works fine although I am only testing it on the bench as the landing gear is no longer mounted on my drone. One thing that you could try is to go to the "servo" area of the flight data menu and select the "low" and "high" buttons on servo 9. This should set the output to 1100 and 1900 respectively and in my case the landing gear does deploy and retract.
  9. Randy Goers interviews Ian Smith, CEO of Ware, a startup using drones to capture data for warehouse inventory tracking. http://droneradioshow.com/can-a-drone-make-warehouses-more-efficient/
  10. I have the same settings if you really meant SERVO9_MIN: 1100 Does open mean deployed and closed mean retracted ? (of course the landing gear needs to be "deployed" for landing) Are these the values that you see in the status display when you operate the landing gear switch on you transmitter and is it 982 when the switch is down (deployed) and 2006 when the switch is up (retracted) ? What are the values of ch9out with the switch down and up ?
  11. @erfan just to add to my previous post a good way to check value output of a particular output channel go to the flight data screen of Mission Planner and select "status". For example I had my landing gear controller connected to the first aux channel which corresponds to ch9out.
  12. Authors and readers of this thread maybe also interested in this startup's technology.
  13. Interesting hybrid design for heavy lift drones from PARALLEL FLIGHT TECHNOLOGIES https://parallel.aero Ian Smith's Interview with CEO https://commercialdrones.fm/podcast/heavy-lift-drones
  14. I need to correct my previous post - I recall that it wasn't that easy to get to work. Low/high PWM does not necessarily mean deploy/retract. It depends on the PWM value on the time of startup and the position of the landing gear. I had the landing gear deployed and tried these values as the startup PWM value 1000 - increasing to 2000 landing gear retracted 2000 - decreasing to 1000 landing gear retracted So its important when connected to the flight controller that it supplies a low PWM value at startup. LGR_SERVO_DEPLOY 1000 (was 1750) LGR_SERVO_RETRACT 2000
  15. My first test was simply with a servo tester and so not driven by the flight controller. I found that when the PWM is low the landing gear is "deployed" and when its high its "retracted" so maybe I was wrong about the triggering by going high to low or low to high. Its also "deployed" when I remove the servo control cable from the landing gear controller. This would simulate loss of signal from the transmitter if the fail safe on the receiver was set to "no pulses. I''l check next with the Pixhawk.
  16. ok, did you reboot the flight controller after making those changes ? If you did I'll make some tests here as its been awhile since I used the landing gear.
  17. Do you know how the landing gear is triggered ?. For example the landing gear that I have is the HML 650 and I noticed that its triggered by a change in the PWM value rather than a low value being say the deployed state and a high value the retract state. There are 3 other parameters that help with this LGR_SERVO_DEPLOY LGR_SERVO_RETRACT LGR_STARTUP I believe that I had to change the LGR_STARTUP_DEPLOY to 1000 and the LGR_SERVO_RETRACT to 2000 and LGR_STARTUP from 0 to 2
  18. I'm not a FPV racer but have built several drones from scratch and so maybe able to help.
  19. Drone Integration and Zoning ACT of 2019 introduced - gives states and local authorities control of first 200 feet of airspace. https://www.lee.senate.gov/public/index.cfm/2019/10/sen-lee-introduces-drone-integration-and-zoning-act
  20. A new silicon valley startup specializing in using drones in warehouse inventory tracking. https://www.getware.com/blog/introducing-ware
  21. Congratulations @Alan Perlman and thanks for building UAVCoach. This is how I found out about UAVcoach back in 2015. http://droneradioshow.com/gaining-confidence-with-drones-alan-perlman-uav-coach/ I joined this forum shortly after you added it back in January 2016. I followed your training and passed my Part 107 on the second day that it was available from the FAA in August 2016. Cheers Richard
  22. ok, great. Let us know when you get it in the air.
  23. Interesting, I did not know about this project. I assume that you are building this one as I noticed he has also moved to 32 bit processors on his later build. http://www.brokking.net/ymfc-al_main.html To get back to your original post, yes the ESC have to be connected to the flight controller, in this case the UNO, and not the receiver. Each ESC should be powered directly from the battery in order to drive the motors. These typically are thicker wires to handle the higher current and connect to a power distribution board (PDB). Some ESCs provide +5v as they have a built in BEC (Batt
  24. I don't see how you could have used channel 6. My understanding is that you have to use channels 7 - 12. 7 & 8 can be set from MP's extended tuning screen and you should see in the drop down Relay on/off which would correspond to aux 5 and relay 1 aux 6.