PX4Flow Optical Unit Installation Tips

Installing onto a flight controller running Ardupilot.
Read this before attempting installation: ardupilot.org/c...
Download this driver to see what the optical flow unit sees: download.ardupi...

[@Yeshesp]

Hey! Can you please make a video on Holybro PMW3901 Optical Flow Sensor installation using Mission Planner Ground Station.

[@bryankoh3836]

Thanks brother! Will try the way you set it up!

[@anishpratheepkumar4184]

Hai, you said X-arrow on PX4flow (at time 9:02min in the video) for orient yaw to be zero. Shouldn't it be Y-arrow ? Could you please clarify
Thanks!

[@alexandrpetrov1110]

Thank you

[@Sam-iy1kv]

hi, where u got the propeller guard ? i need one for my drone

[@voicecopter4196]

Hi sorry for not replying....this is a 2.5 yr old video.
Some of the information may be outdated, but it's best to use my video as an introduction and then develop further, based on the newer hardware.
Sorry I couldn't provide a better update (or follow up video), but I am working on other stuff now, so don't have much time to play around with the copter related stuff.

[@pcka12]

Glad to see the cat contributing!

[@niklasvoigt5568]

how does the px4flow get the altitude for you?
is the lidar connected to the px4flow or as a normal sensor to the flight controller?

[@voicecopter4196]

Altitude: The flight controller has a barometer onboard to calculate the altitude (z-axis). In a later version of my copter, I started using a LIDAR unit to calculate altitude so that the copter could maintain altitude better.
The only thing that the px4flow is doing is taking pictures continually using the built-in camera. which points towards the ground and compares the older picture with the current picture. The aim of the px4flow is to keep the old and new picture identical and if the picture has changed, the px4flow will instruct the copter to move into a position so that the new picture is once again, identical to the old picture (ie. the copter is now back in the same position as it was in when the old picture was taken).

[@niklasvoigt5568]

@@voicecopter4196 Thank you, I have understood that so far. I meant the physical connection. Is the lidar connected to the flight controller and the PX4Flow gets the altitude from the flight controller or does the lidar have to be connected to the PX4Flow?

[@voicecopter4196]

@@niklasvoigt5568 LIDAR is connected to the flight controller.
Px4flow is connected to the flight controller.
Everything runs through the flight controller.

[@rohsal6498]

Hi really liked your video. But I think it has been outdated to the current version of Q-ground control n mission planner. The new values are very different from what you showed in the videos. I am having a hard time connecting and getting results for the sensors. Can you guide?

[@voicecopter4196]

HI, Sorry for the late reply. Unfortunately, I haven't been testing the copter with the newer version of hardware/software, so I can't help.