Such a great Lost Place to explore with an FPV Drone

#fpv #fpvdrone #lostplace

Managed to squeeze in a bit of FPV flying just before it got dark today. My nemesis the soccer goal crossbar struck again, but no damage this time.

https://youtu.be/-mwIwljZfUk

#FPV #FPVDrone #Quadcopter #Drone

Improving? Somewhat. Hard to tell with all the crashes, but I'm getting more adventurous! (lengthy segment of our cat "rescuing" the drone at the end ^_^ )

#fpvdrone #tinywhoop #mobula6

https://www.youtube.com/watch?v=Yln8BAUOKQ8

The main conclusion that I'm drawing from these results is that there's really not much to filter.

What I was expecting to see was one or more clear curves going up and to the right (motor vibrations at the rotor rpm or multiples thereof, as in this screenshot from a video) and possibly a few vertical bands (mechanical resonances of the drone frame, etc.) that could be taken out by the motor RPM filters and dynamic notch filters respectively.

There are some vertical bands at ~90 Hz and ~180 HZ between 0 & ~20% throttle & I thought these were frame resonances until I realised that these match the frequencies for 1x and 2x the minimum motor RPM I currently have set using Betaflight's "dynamic idle" feature (5000 rpm). The 2x motor RPM line is stronger, which makes sense as I'm using 2 bladed propellers. The strong signal between 600 and 800 Hz at high throttle seems to be the continuation of the 2x RPM line.

I think this is telling me that I can reduce the number of RPM filter harmonics from 3 to 2, but should probably reduce the minimum frequency from 100 to ~80 Hz to catch the fundamental frequency at idle. It seems I don't really need any dynamic notch filters, but I'll leave just one in for now to be on the safe side.

https://www.youtube.com/watch?v=sNAV4gx_gBY&t=446s

#FPV #FPVDrone #Drone

Dipping my toe into the very deep waters of FPV drone tuning.

According to all the guides for this the first step is tuning the noise filters applied to the on board gyro data. My little drone has "blackbox" functionality, enabling it to log all its sensor readings and control inputs for a couple of minutes of flight. By taking a test flight where I was continually pumping the throttle between 0% and 100% I can get a decent frequency spectrum vs throttle plot, and look for noise features I can target with the Betaflight filter settings.

#FPV #FPVDrone #Drone

Bartok is lookin' good with the new white flappers. #fpvdrone #tinywhoop

Uh oh. New hobby just dropped. #adhd #fpvdrone #tinywhoop

Sticking a model X-Wing to the front of an FPV drone and flying the trench run! Genius.

https://www.instagram.com/reel/Ch20C86AZ6G/

#FPV #FPVDrone

@ErikJonker
#Ukraine might make these prime targets for #fpvdrone .
These long range attack helicopters must sometimes hover to be accurate.. in wargames.

Chargin' all teh things!

I don't know if I'll get a chance to fly this long weekend, but I definitely won't if I don't have my batteries ready to go.

P.S. This arrangement was just for the photo, afterwards I moved everything apart and put the LiPo *inside* the LiPo Safe bag.

#FPV #FPVDrone

Topped up on spare parts. A spare motor and 24 more propellers will hopefully last me a while.

#FPV #FPVDrone

The patient is predicted to make a full recovery!

I did have to reverse the direction of the motor that I changed using the ESC configurator web app (https://esc-configurator.com/) but once I did that I once again had all four motors spinning, and in their correct directions too.

I checked the radio control and video links too, all good there as well.

#FPV #FPVDrone

Micro surgery complete!

A nice thing about brushless motors is that the order of the wires doesn't matter, you can fix it in software (well, firmware) later.

#FPV #FPVDrone

Going to attempt some micro (drone) surgery.

#FPV #FPVDrone

These little 10 mm diameter brushless motors have *really* tight clearances between the rotor and the stator. The damage is barely visible to the naked eye but I've clearly deformed the rotor enough that it now catches on the stator.

#FPV #FPVDrone

An FPV rite of passage? I broke my first motor today while continuing my quest to learn to power loop.

It's not a big deal, these tiny motors are not expensive and I even had the foresight to buy a spare when I bought the quadcopter. Replacing the damaged motor will involve a bit of fiddly soldering though, so it might take me a few days to get around to it.

#FPV #FPVDrone

With radio control transmitters people are either a "pincher" or a "thumber", depending on how they use the sticks. I'm a thumber, and was finding the standard stick ends on my Radiomaster Boxer a bit stabby. I'm going to give these TBS Honey stick ends a try instead.

#FPV #FPVDrone #RadioControl

At one point the local wildlife came to investigate the crash site.

https://youtu.be/8I-SDTpiLSA

#FPV #FPVDrone

I crashed my quad a lot this afternoon, and lost of a couple of propellers. I did manage *one* half decent power loop, though.

https://youtu.be/QMR_Q9oG5_0

#FPV #FPVDrone

Anybody here flying #fpvdrone in #ireland ? Looking to network and bug people about building and flying FPV drones here in Ireland.