7-Inch Race Drone Build

ArduCopter Copter 4.3
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Hi,

I have been flying my small drones with Betaflight and am new to Ardupilot.

I want to use more of the route planning features that Ardupilot affords. I have flashed my Mateksys H734-SLIM V3 with Ardupilot and followed the Wiki.

I have reached the point where I arm the drone and take off in acro mode, I can hover the drone for about 10 seconds before it puts in an undemanded pitch or roll input, and I disarm the drone.

I am not sure why I seem to have full control of the drone for 10 seconds in acro mode then the drone flies away. I have not put a tune on it yet, but it sounds and feels stable for the first 10 seconds of flight.

Can anyone offer any input?

Mateksys H743-SLIM V3
Crossfire Nano Rx with a Tango II controller
T-Motor F55A ESC
T-Motor F90 motors

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Screenshot 2023-04-13 at 11.10.00
Screenshot 2023-04-13 at 11.10.001024×1256 73.4 KB

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Please post a .bin log file.

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Here’s one I did earlier … ArduCopter 7" Long Range Build - YouTube

1 Like
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I don’t have a telemetry radio. Is there a way for me to look at the log file?

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I did follow this @andyp1per . Thank you for the post. I thought that it was set up the same, that’s why I don’t understand why it isn’t working.

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Download it from the sdcard

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There is no SD card on the drone

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No logs then. The FC has an sdcard slot so you should get one and put it in - going to be tough to offer advice otherwise

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Thank you, @andyp1per, I will add one and try again.

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You wouldn’t be doing any of this either without an Sdcard.

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2023-04-16 11-58-51.bin (948 KB)

I have put in an SDcard. I still have the same problem of the drone working for a while, then losing control.

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Here is a larger file.

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I have been progressing with this today. What I thought was a loss of control was the drone falling when it had zero throttle. As it rolled I always disarmed because I thought it was a control malfunction, but it was just me not understanding the system well enough. I have added air mode and a tune, and now it is working much better.

I have just tried it in position hold, and it works well.

Next, I will try some basic mission planning to see if it will fly a route.

1 Like
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Glad you figured it out!

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I have been having a lot of fun with this project. I have had the drone flying around a race track under GPS guidance.

I am now trying to add some computer vision to detect race gates. I have added an RPi and a Pi camera to the drone. I added a simple program where in guided mode, the drone arms and takes off. If it sees a gate, it will fly forwards, and if the gate moves to the peripherals of the screen, the drone will turn left/right to compensate.

The drone takes off ok and detects the target; the issue is that when it starts to move forward and turn, it falls from the sky.

Is there anywhere in the log file where I can see why it isn’t just flying forwards or turning?

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.bin file in link

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and a second .bin