DJI Mavic, Air and Mini Drones
Friendly, Helpful & Knowledgeable Community
Join Us Now

Recent content by crada

  1. C

    Is there a control app that can show a user-selected telemetry parameter in real-time?

    I don't get the consumer drone part. That information (current, GPS height, and others) is available through the DJI developer SDK API. In the case of GPS height, it is clearly described in the SDK documentation: DJI Onboard SDK: Telemetry Topics Therefore, I see no obstacle for any app...
  2. C

    Is there a control app that can show a user-selected telemetry parameter in real-time?

    I'm sorry, my mistake. Litchi doesn't seem to log that. But Go4 does. The point is that Litchi and other apps log a bunch of data that is not shown in real-time. An example of that for Litchi could be current draw from the battery. And my question was just about that: Is there any control app...
  3. C

    Is there a control app that can show a user-selected telemetry parameter in real-time?

    The IMU also computes absolute altitude (above sea level). In the DAT flight log it is stored in the field "IMU_ATTI(0):absoluteHeight"
  4. C

    Is there a control app that can show a user-selected telemetry parameter in real-time?

    Why not? That data is accessible using DJI SDK. Apps like Litchi include that info in the flight logs. It would be up to the app developer to show that information in real-time.
  5. C

    Is there a control app that can show a user-selected telemetry parameter in real-time?

    It is definitely sent to the remote controller, because for my post-flight analysis I get the data from the phone (.dat file stored in the Go4 folder, which can be decoded with CsvView), and it is all there. I just wonder if there is any app that allows to see all that data as it gets...
  6. C

    Is there a control app that can show a user-selected telemetry parameter in real-time?

    To illustrate the idea. This plot shows the flight data of a Mavic Pro flying straight up that reached 1220 m above sea level according to the IMU but only 1058 m according to the GPS. That is a difference of 162 m, much more than the GPS error. The difference at take-off is 74 m; therefore...
  7. C

    Is there a control app that can show a user-selected telemetry parameter in real-time?

    The log contains the GPS coordinates (latitude, longitude and elevation above sea level) throughout the whole flight. In the DAT file, those fields are GPS:Long, GPS:Lat, GPS:heightMSL. These are different from the one calculated by the IMU using the barometric pressure like the fields...
  8. C

    Is there a control app that can show a user-selected telemetry parameter in real-time?

    In that subject, I know more, and that is not true. The GPS height has noise (it can jump up and down a few or up to tens of meters), making it terrible for calculating climb rates, but it has great absolute accuracy. That means that those jumps up and down are around the true elevation. The...
  9. C

    Is there a control app that can show a user-selected telemetry parameter in real-time?

    Thanks for the insight. I use DJI Fly and Go4 and I didn't know they have an artificial horizon. I just read about it, and it is indeed a great feature. Thanks for pointing that out. Regarding the height, thanks for the clarification. But I know the app does receive the GPS height (because it...
  10. C

    Is there a control app that can show a user-selected telemetry parameter in real-time?

    After a flight, we all know that the flight log stores a huge amount of information. However, only a small fraction of it is available in real-time as we fly. In some cases, it would be very useful for my work to be able to see some of the telemetry data in real-time. The examples that are more...
  11. C

    In-depth review of Mavic Pro extended capacity battery (Hobbitec 6830mAh) - Performance and raised questions

    Just as an update. I got a second high-capacity battery and a Mavic Pro Platinum and did another hover test down to 0%. It lasted 38:32, just 3:18 more than the Mavic Pro. A smaller gain than I thought. But this second battery still seems to perform very well. It was indoors with a room...
  12. C

    In-depth review of Mavic Pro extended capacity battery (Hobbitec 6830mAh) - Performance and raised questions

    I'm glad the battery worked for you as well. I had a similar experience. But I was always repeating the same vertical flight. Therefore, I could check how much battery I had left on landing and progressively push the flight a bit longer. But the short answer is yes; I had to cancel the RTH to...
  13. C

    In-depth review of Mavic Pro extended capacity battery (Hobbitec 6830mAh) - Performance and raised questions

    No, I have not got any overheating problems. My flights have been flying vertically up at 10 m/s. So I would say that flying forward, your Mavic Pro will stay cooler than mine. Mine went pretty hot, but that has never turned into a problem.