JeanLeFlambeur
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JeanLeFlambeur's Discussions

Vibration analysis

Started this discussion. Last reply by JeanLeFlambeur Oct 3, 2014. 1 Reply

Hi,First of all - it's a long read so thanks in advance.I'm trying to improve the vibration in my quad and I have a few questions.First some details: I'm using a Drotek 10DOF with a MPU9250 imu…Continue

Tags: lpf, noise, vibration, quadcopter

Raspberry Pi UAV

Started this discussion. Last reply by JeanLeFlambeur Aug 18, 2014. 1 Reply

Hi, For the past few months I've been working on a UAV using a raspberry pi as the flight controller, a crius aiop as the sensor board + real time rate pid controller, an alfa wifi adapter for the…Continue

 

JeanLeFlambeur's Page

Latest Activity

JeanLeFlambeur commented on Bob Morley's blog post Tricopter assembly
"I really like your setup and the yaw mechanism. Are you using PLA or ABS? How is the printer Z-axis oriented? Are you using anything else to strengthen the print? Some post-processing? "
Jun 25
JeanLeFlambeur posted a blog post

Testing rig

I built a custom testing rig out of some plywood sticks and these kind of elastic cords:There is just enough clearance for 7 inch props and the quad is free to rotate around one axis (Y or roll in the video). I can easily change the free axis as the cords connect to the arms with metal hooks.The issue I’m…See More
Jun 14
JeanLeFlambeur commented on Bob Morley's blog post More progress...
"I like your yaw system. I guess you went for a tri to save weight, right? You might end up with more weight than if you went for a X quad because of the servo (which alone is 20-30% of the weight of an extra motor), the yaw linkages, extra CF tubing…"
Apr 20
JeanLeFlambeur commented on FernRF's blog post New FPV option - FPV HAT for Raspberry Pi
"@FernRF: Thanks a lot for the details. You got me hoping I can revive the 4463 project. Can you post some video with the bitrate at this bitrate?"
Mar 27
JeanLeFlambeur commented on FernRF's blog post New FPV option - FPV HAT for Raspberry Pi
"@FernRF Actually the datasheet says the max is 500k symbols per second. With 4FSK a symbol is 2 bits so a max rate of 1Mbps. This is well within the specs. The RX sensitivity @1Mbps is -88dBm which is very usable. Regarding the fifo, I was…"
Mar 27
JeanLeFlambeur commented on FernRF's blog post New FPV option - FPV HAT for Raspberry Pi
"@FernRF: thanks a lot for the hint PA. I will definitely check out your code. It might be what you mention, maybe I got the wrong frequency modules or I had the wrong configuration - even though I doubt it, I was measuring with a SDR and spot on 433…"
Mar 27
JeanLeFlambeur commented on FernRF's blog post New FPV option - FPV HAT for Raspberry Pi
"@FernRF - do you happen to know what version they are? I tried to get 2 of them to work for 3 months without success. They got unstable at higher power levels (>50mW) and the power rail got a lot of noise. My guess is that the power amplifier…"
Mar 27
JeanLeFlambeur commented on FernRF's blog post New FPV option - FPV HAT for Raspberry Pi
"This looks great! Which module did you use? Is it the RF4463F30 one?"
Mar 27
Marc Dornan commented on JeanLeFlambeur's blog post 3D-printable gimbal for RaspberryPi camera
"Just saw this. Great idea. I think a lighter ribbon cable for the IMU is a good idea, but you likely have already thought of this. I am playing with light gimbals for fixed wings and I wonder if I could adapt your design to work with a Mobius lens.…"
Mar 4
JeanLeFlambeur commented on JeanLeFlambeur's blog post 3D-printable gimbal for RaspberryPi camera
"@Ted - somehow I missed your question... The gimbal pitch is not balanced as it relies on the camera being light. It can take a slightly heavier camera or the RPI+Lens but I didn't test it. The motors are definitely strong enough to move more…"
Mar 4
JB commented on JeanLeFlambeur's blog post First test of custom RC using Raspberry Pi
"Nice Work! It would be good to get a "Ground Comms Base" working, where a lot of the individual components can run by themselves (Like RFD900, RC, WIfi, 3G etc) and then from there redistribute to the relevant GCS or RC TX unit. That way…"
Nov 18, 2016
JeanLeFlambeur posted a blog post

First test of custom RC using Raspberry Pi

Here is the first test of my custom RC that will complement my custom FC and quad.It uses a Raspberry Pi, 2x 2.4Ghz wifi cards for video streaming, a 433Mhz connection to control the quad and a 5.8Ghz wifi card to send the video to an android phone.So far I have the hardware done - case, buttons, gimbal, screen etc - and most of the software in place as well.I still have to work on the phone app though.The build log is here:…See More
Nov 16, 2016
Ted Morgan commented on JeanLeFlambeur's blog post 3D-printable gimbal for RaspberryPi camera
"How do you think it would hold up if the RPi camera had an attached lens on it that was bigger/heavier?"
Sep 7, 2016

Moderator
Vladimir "Lazy" Khudyakov commented on JeanLeFlambeur's blog post 3D-printable gimbal for RaspberryPi camera
"Nice job!"
Aug 31, 2016
JeanLeFlambeur commented on JeanLeFlambeur's blog post 3D-printable gimbal for RaspberryPi camera
"I intend to buy these and solder flexible 26AWG silicon cables to it. Fitting the pi zero on the gimbal would make it bigger and it would need more space to rotate freely. This is an issue on the mini quad I'm building."
Aug 30, 2016

Moderator
Roberto Navoni commented on JeanLeFlambeur's blog post 3D-printable gimbal for RaspberryPi camera
"When you try to connect the camera to RPI the problem could be the flat cable ... my suggestion is to put on gimbal all the RPI board . You can use RPI 0 rev 1.3 it's very small ... and can fit on your gimbal. If not could be a lot of problem…"
Aug 30, 2016

Profile Information

Please tell us a bit about your UAV interest
Fpv
Hometown:
Barcelona

JeanLeFlambeur's Blog

Testing rig

Posted on June 14, 2017 at 1:28am 0 Comments

I built a custom testing rig out of some plywood sticks and these kind of elastic cords:…

Continue

First test of custom RC using Raspberry Pi

Posted on November 16, 2016 at 12:30pm 1 Comment

Here is the first test of my custom RC that will complement my custom FC and quad.

It uses a Raspberry Pi, 2x 2.4Ghz wifi cards for video streaming, a 433Mhz connection to control the quad and a 5.8Ghz wifi card to send the video to an android phone.

So far I have the hardware done - case, buttons, gimbal, screen etc - and…

Continue

3D-printable gimbal for RaspberryPi camera

Posted on August 29, 2016 at 2:30pm 7 Comments

I ordered …

Continue

Silkopter FC Done

Posted on July 26, 2016 at 3:29pm 3 Comments

pcb

(You can check the progress (and a copy of this post) on my blog.)

Finally, after some DHL delivery trouble the boards arrived.

After watching a few tutorials I immediately tried soldering the most difficult part –…

Continue

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