Missing FLOW parameters?

ArduCopter Copter 4.5
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1

I am attempting to get a Micoair MTF-01 optical flow sensor working on a Matek-F765-Wing running ArduCopter V4.5.3. I believe this FC should meet the requirements and have reviewed the features.txt file to confirm optical flow was enabled in the build.
https://firmware.ardupilot.org/Copter/stable-4.5.3/MatekF765-Wing/features.txt

I am able to view the rangefinder and optical flow Mavlink messages in the Mavlink Inspector and correctly see the rangefinder data in the Status window. No data however shows up on the opt_x or opt_y despite these values changing in the mavlink messages.

Hoping someone may be able to offer some insight into why I might not be seeing these FLOW parameters and/or if setting FLOW_TYPE is required to function?

2

MTF-01 can have the same MAVLink address; you just need to change
SYSID_THISMAV = 1, 2, or 3.
I have encountered a similar case as yours

3

I will give that a try. Thank you.

4

Hello!
Did you manage to set up MTF-01 with your Copter?

I am facing the same problem: there is no FLOW_TYPE param in my list of all ardupilot params. I am using SpeedyBee F405 60A with MTF-01 optical flow sensor. I’ve loaded Ardupilot 4.5.7 version to SpeedyBee.

Btw, my optical flow sensor is fine, it works with Pixhawk + Ardupilot 4.5.7

5

Optical flow is not available on F405 boards by default, you need a custom build. With appropriate driver for your OF sensor and EKF fusion.

6

Thanks for your response!
Will look for custom build on the net

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