Can't calibrate IMU
- Thread starter FredEX
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msinger
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Are you referring to the first flight out of the box? If so, yes. Many people never calibrate the IMU out of the box.
In my case i cant seem to calibrate IMU since three weeks ago(owned the P4P since march).. Tried pretty much everything... Thats why im asking..
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What I found was when I first tried calibrate my IMU at room temperature it would not complete the process. I put it in the refrigerator for about 15 minutes this allowed it to calibrate through the full temperature range. Apparently at room temperature it heats up too fast to complete the calibration
I tried this last night. I had mine outside in -1 C.. (northern Sweden).. But it didnt help..
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I can inform you guys that with the latest firmware-update(25 dec 2017) i can now calibrate IMU.. Three months downtime with my P4P
May be this can be of some help.
Like you I had to do IMU calibration on first power up. And at first I also failed. Several times even. More precise it took me a few to figure out what was wrong, at least in my case.
For the p4p IMU calibration steps 1 through 4 are the same in the videos and in the GL300E app. Yet, there is a difference between the app instruction and the youtube videos involving step 5.
In step 4 you have to tilt the drone with the camera facing you, nose down. In step 5 the instruction video tells you to tilt the drone backwards, sitting on its butt with the camera facing you. Also the GL300E app tells you to let the done sit butt down, but with the butt facing you and NOT the camera.
This difference between app and instruction video is very hard to observe from the app images 4 and 5, as well as when the app calibration step 4 is finished, as the image differences between image 4 and 5 are very subtile. I missed them twice as I was paying attention to the video rather than the app.
Later whilst viewing the app images only, the transition from app image 4 to 5 is still very hard to see, yet, that image changes can be observed. Just watch for the camera in image 4, and the absence of the camera in image 5. There you see the butt.
The final step 6 indeed requires you to flip the drone upside down, on its motors (no propeller attached), with, note, the camera again facing you.
This is what worked for me and I hope it works for you too.
Like you I had to do IMU calibration on first power up. And at first I also failed. Several times even. More precise it took me a few to figure out what was wrong, at least in my case.
For the p4p IMU calibration steps 1 through 4 are the same in the videos and in the GL300E app. Yet, there is a difference between the app instruction and the youtube videos involving step 5.
In step 4 you have to tilt the drone with the camera facing you, nose down. In step 5 the instruction video tells you to tilt the drone backwards, sitting on its butt with the camera facing you. Also the GL300E app tells you to let the done sit butt down, but with the butt facing you and NOT the camera.
This difference between app and instruction video is very hard to observe from the app images 4 and 5, as well as when the app calibration step 4 is finished, as the image differences between image 4 and 5 are very subtile. I missed them twice as I was paying attention to the video rather than the app.
Later whilst viewing the app images only, the transition from app image 4 to 5 is still very hard to see, yet, that image changes can be observed. Just watch for the camera in image 4, and the absence of the camera in image 5. There you see the butt.
The final step 6 indeed requires you to flip the drone upside down, on its motors (no propeller attached), with, note, the camera again facing you.
This is what worked for me and I hope it works for you too.
