Recent content by jwt873

  1. J

    What will happen if the battery temperature goes below 15c while in flight?

    Just noticed that my last post in this thread was in 2016.. I just got my P4 back then and hadn't seen any cold weather. I've flown it for over 2 years now and have been through two winters. I make sure the batteries are at room temperature when I plug them in, but sometimes I've had them get...
  2. J

    Errors Galore

    Since upgrading the P4 Firmware to 02.00.0700 I've had nothing but trouble when flying. I've only flown 3 or 4 times since then. But when I do fly the craft flashes endless errors on the screen during the flight. Here's a list of what I see: - Compass Error - Compass Error. Exit P-GPS Mode -...
  3. J

    Detrmining Cell Voltage Level

    The individual battery cell voltages and the overall battery temperature can be read in the DJI Go 4 app. Just tap on the little battery icon on the main screen, or you can reach it through the settings menu.
  4. J

    How far/high have you been

    When I first got my P4 (before we had federal regulations in Canada) I went up to the maximum programed altitude of 500 meters (1640 feet) above my takeoff point. My farthest distance is 2.4 Km (1.5 miles). I did it a couple of times just to see if it could be done and to be able to say that...
  5. J

    Moisture inside camera P4P and warm battery

    I have no idea how you got condensation inside the camera... Did you ever get it wet? (Fly in the rain etc). The drone batteries are 'smart' They self discharge after a certain time to maximize their life. You can set the number of days to wait before discharge in the battery section your...
  6. J

    My P4 after all updates

    Also, if you're out of WiFi range and your device doesn't have a cellular connection to the Internet, the maps won't have any way of loading. If this is the case, you can cache maps while connected to WiFi before you go out to fly. See here -> Possible to use USB cable?
  7. J

    P4 battery mah capacity

    In the Battery option under the main 'Settings' there is a slider for "Show Voltage on Main Screen". Your's might be turned off.
  8. J

    Using my P4 as traffic cam for wife :)

    The gimbal is the camera's image stabilization. And yes, I agree, it is quite amazing :)
  9. J

    Battery temperature

    With ambient temperatures above 85 F (30 C) I've seen my batteries get up to 150 F (65 C) internally. -- It's normal. If you don't like hot batteries, you need to fly when the ambient temperature is -35 F (-31 C).. They stay at a nice comfortable 75 F (24C) :)
  10. J

    Editing

    For serious editing, you don't want to use laptops and tablets. The main reason is that the displays are too small and most are incapable of displaying 4K video. (However they are suitable if all you want to do is to cobble something together for Facebook or other social media). 15 inch...
  11. J

    Green screen...laggy video when flying

    When I got my P4 a little over a year ago, I was using an iPad Air as my device. It worked perfectly. No issues at all. I upgraded to an iPad Pro 9.7 and tucked the Air away to use as a secondary tablet around the house. When iOS 11 came out, my Pro 9.7 still worked fine as a flying device...
  12. J

    IMU Calibration fail.... HELPPPPPP

    I don't know if this happens to everyone, but whenever I start up my P4, I ALWAYS get the "Error, calibrate IMU" message. This occurs every single flight. I just ignore the message and after about a minute or so, it goes away -- then I fly. This 'feature' was added on one of the recent DJI...
  13. J

    Flight modes

    My P4 with firmware V 02.00.0106 shows a gesture mode in the mode options.. (Third one from the left).. However, I have no idea how to use it. :)
  14. J

    How to integrate DJI Phantom 4 Advanced with ROS?

    Your English is good. The source code for the firmware is a closely guarded secret. You'll get nothing from DJI. Some people have tried to access the drone through the USB port, but I've never heard of anyone doing it successfully. --> hacking lightbridge
  15. J

    How to integrate DJI Phantom 4 Advanced with ROS?

    I don't believe you can. Why would you want to do this?