1hr flight XL Quad with DIY brushless gimbal + Linux FC [RCI sweepstakes entry]

[mhkabir98]

Hehe girish sir  

I'll be using AES-256 encryption on the Bullet M5s (wireless link) to the GCS

Thanks for the nice PDB , do you still make them nowadays?

Kabir

Sent from my Nexus 5 using Tapatalk 4

[mhkabir98]

EDIT : Unfortunately the MultiStars are having sync issues with low kV motors, I won't be using them on this build. Getting some Afros soon.

VVVVVV +1 to what sidewinder says VVVVV

[SideWinder]

Yeah, heads up for the motors too, low kv,high pole count (22+) pancake motors seem to face sync issues too.

[mhkabir98]

Woooo Hoooo!!!!!

Motors , ESCs and props are on their way!!! I should be getting the Rocket M5s soon too!!!!

Batteries will be ordered in a day or two.

Kabir

[Rahulvyas]

which motor and ESCs you going to use kabir?

[mhkabir98]

Hey Rahul,

I'm gonna use 380kV multistar motors and 12A AfroESCs with my patched firmware

Ordered a bunch of props too(15" to 17" carbon of different styles to check out which is most efficient and gives least vibration)

Kabir

[mhkabir98]

Long time since I've posted anything on this topic. Phase two of onboard integration of copter is complete. Had first flight flight with MkII electronics today.



Phase I was flying with just APM 2.5 to test out frame, motors, etc. Phase II was integrating most of the new electronics (listed below) and flight testing again. Phase III will be integration of stereo head on front of quad to facilitate SLAM.

Electronics onboard Mk.I (initial) :
APM 2.5
pcDuino
NEO 6M GPS
3DR radio for telemetry



Electronics onboard Mk.II (now) :
Pixhawk AP (takes position controller inputs from the Odroid - running PX4 native stack)
Odroid U3 (1.9 Ghz Quad core Exynos 4412 SBC running ROS)
PX4Flow (actively using flow velocity for position hold at low altitudes and NED relative position estimate)
NEO 6M GPS
DLink DWA150 wireless link











Electronics onboard Mk.III (next steps) :
Mk II hardware with addons VV
Long range Rocket M5 802.11 link
Stereo cam head on front (2 x PS3Eye)

Presently I'm waiting for the two PS3 Eyes, Rocket M5 and a Logitech C920.

Hope you like it Here is another of my projects : (A sneak peak if you will .... Its Linux )



Kabir

[allthatido]

What frame are you using for the quadcopter. I want to source the red plastic parts.

[AnjanBabu]

Amazing build, good job.

Are you using the APM only for sensor data?

[mhkabir98]

@ankurkaul I got them from goodluckbuy when shopping. The center plates are my own .

@AnjanBabu initially that's what I'd been doing. I was using the APM for sensor data and hardware I/O as a PWM and PPM expander. Now, I'm running the low level controllers all on the pixhawk (all flight algorithms) and using the Odroid for  the quads navigation systems (SLAM onboard using point cloud from stereo cam disparity). The sneak-peek quad on the other hand runs every controller(rate + position) on the Linux board with data coming in from an SPI IMU and uses an APM1 to provide motor output and RC input.

[AnjanBabu]

That's really cool man.

[mhkabir98]

Thanks

[allthatido]

@mhkabir

any links for the same ? What do I need to search on the website ?

[mhkabir98]

Here you go : http://www.goodluckbuy.com/hj-diy-multi-axis-610mm-wheelbase-strong-quadcopter-multicopter-frame-kit-redblack-.html

I used the plastic stuff from this frame

[mhkabir98]

Here is my video. This was done in very short time , so please excuse the quality. I'm going to post a more detailed demonstration video sometime in June when I'm back in India.

[allthatido]

Thanks mhkabir. You sourced the panasonics from DX ? How are they performing ?

[mhkabir98]

I ended up getting the batteries from a seller on aliexpress. The batteries are very good even though I need a lighter frame to take full advantage of them.

I also have a standard 16000mah lipo on the way which I'll be testing.

Kabir

[HVP]

Sweet build Kabir! Good luck for the sweepstakes

[mhkabir98]

Thanks HVP