Optical flow not working

[GBeta]

Hello !,

I have been trying to enable the optical flow for indoors flights but I did not success. I attached images that can be used to help a little bit. Everything it is ok with the range sensor but with the optical flow non.

I will really appreciate your help.

Thanks,

Best regards

Julio Betancourt

[GBeta]

I did the update of Bios but does not work .. I read a little bit that the down-face camera was designed for odemetry purposes but at the same time can be used as an optical flow sensor. I saw a page from instructables.com where they put an PX4flow sensor instead of use the intel RTF one. I will like to know if you can give me a feedback.

Thaks so much.

Julio

[idata]

Hi Betancourt91,

Thank you for your interest in the Intel Aero drone.Could you give me more details? Which guide are you following?What sensor are you using?Regards,Alexandra

[GBeta]

Hi Alexandra,

Thank you for answering asap.

I am using the Aero RTF who use a down-faced camera (https://github.com/intel-aero/aero-optical-flow GitHub - intel-aero/aero-optical-flow ). Concerning to the range sensor, I am using LeddarOne sensor ( https://docs.px4.io/en/flight_controller/intel_aero.html https://docs.px4.io/en/flight_controller/intel_aero.html )

and I update the firmware of px4 and installed the dirver for LeddarOne following (https://docs.px4.io/en/sensor/leddar_one.html https://docs.px4.io/en/sensor/leddar_one.html ). But I did get it.

As I told you, I read from https://www.instructables.com/id/Intel-Aero-Drone-Altitude-and-Position-Hold-Using-/ Intel Aero Drone - Altitude and Position Hold Using PX4Flow: 11 Steps (with Pictures) with another optical sensor and As the video shownm they success to fly in altitude and hold position.

I hope this can help you to have an idea what I talked about it.

Best regards,

Julio

[idata]

Hi Betancourt91,

Could you make sure you are booting into the right kernel? it should be this one:Linux frelon 4.4.76-aero-1.2 # 1 SMP PREEMPT Mon Nov 6 19:42:57 UTC 2017 x86_64 x86_64 x86_64 GNU/Linux

Please also make sure the sensor is connected correctly and the parameters are set, and SENS_EN_LEDDAR1 is enabled

https://github.com/intel-aero/aero-optical-flow https://github.com/intel-aero/aero-optical-flow

https://docs.px4.io/en/sensor/leddar_one.html https://docs.px4.io/en/sensor/leddar_one.html

Regards,Alexandra

[GBeta]

Hello Alexandra,

Yes of course I did that. Attached you will find the pictures concerning your questions. With respect the distance sensor, there is another way to check if is working ?

Thanks for your help,

Julio Betancourt

[idata]

Usually you can find the distance_sensor value in the Mavlink inspector under "current". I've had issues with this exact setup for the last couple weeks and I ended up having to revert back to PX4 1.7.0 and using the maxbotics sonar onboard the px4flow instead. If you find a way to get it working using px4 1.8.0 with the px4flow or even just the downward facing camera, I'd like to hear about it. Good luck.

[GBeta]

Hi Tim Chang,

Thanks so much for your answer,

well I suppose it's working cause I have data from him. I will continue trying with the downward facing camera if not I guess I will try this tutorial; They talk about the px4flow sensor you can check it : https://www.instructables.com/id/Intel-Aero-Drone-Altitude-and-Position-Hold-Using-/ Intel Aero Drone - Altitude and Position Hold Using PX4Flow: 11 Steps (with Pictures)

Best regards,

Julio Betancourt