The video below (enable audio!) shows a detailed overview of the new Pixracer flight controller.

It is the 4th generation of the Pixhawk flight controller family (make: FMUv4) and like the first generations designed by the Pixhawk Open Hardware team in collaboration with an international dev team. It supports the PX4 and APM flight stacks. If you like to try PX4 on it, follow the user guide.

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Comment by Crady von Pawlak on January 16, 2016 at 11:42am

Nice!  The order page doesn't explicitly say it comes with cables (if it does I miss it).

Any issues with the latest releases of MP/ArduCopter?  

Comment by Johnatan on January 16, 2016 at 11:52am

I really like how small it is. Could anyone please explains what are the peripherals that we can not use on Pixracer because of lack of I/O ports comparing to Pixhawk?

Comment by Tobias Witting on January 16, 2016 at 1:21pm

only 6 PWM outputs... so no octos possible? I guess it makes sense when the target market is racing quads. But this could also be a nice little FC for any other copter.

Comment by benbojangles on January 16, 2016 at 2:07pm

snazzy :) I like the price point too. It reminds me of the glory days of my first Crius AIOP board. Is there also a 35x35mm Power + Amp/Voltage Sensor board? (I'm guessing it's 35x35mm) it could be stacked underneath/ontop.

Comment by PX4 on January 16, 2016 at 2:11pm

@Crady: ACM will support it, but hasn't catched up with the final hardware rev I believe.

@Johnatan: There is a link in the top of the post with all ports

@Tobias: This is not a Pixhawk. Most Octos then need gimbal control cameras triggers, etc. - wait for the full-size Pixhawk if you want an updated Pixhawk (no, we don't know yet how long it will take)

@benbojangles: AUAV offers a matching power supply as kit

Comment by Crady von Pawlak on January 16, 2016 at 2:13pm

Do the boards ship with cables?

Comment by Chris Card on January 16, 2016 at 2:29pm


Yes it is supposed to ship with cables.

Comment by turdsurfer on January 16, 2016 at 2:39pm

Very nice! It'll allow for full fledged autopilots in tiny airframes, but I really doubt it'll come close to matching the performance of the boards such as naze32 with Cleanflight with their tight and constant loops and rapid ESC updates (using OneShot125), simply due to the way the firmware is designed.

I've hinted at this before elsewhere long ago, that it is possible to have the best of both worlds by modularising the firmware and hardware design into 2 main parts: a lean-and-mean flight controller that does nothing more than a naze32 with a constant and tight loop time, and a 2nd board that contains the brains (GPS, navigation code, gimbal control, telemetry, etc), that controls/flies the aforementioned board via SBUS (or similar) much like a pilot would. 
I said 2 boards, but obviously it could also be 1 board with 2 processing units.

Hopefully that'll appear on the scene one day, but it'll require major changes to both hard and software design. More like a new (forked) project altogether.

If I had spare time I'd probably attempt it myself, but unfortunately I have a chronic shortage of spare time.

Comment by PX4 on January 16, 2016 at 2:48pm

@turdsurfer: There are enough single-use FPV racing boards out there. If you really think that's needed you're free to use one of those. From an engineering perspective doing FPV racing on Pixracer is like using a Smartphone to run a pocket calculator: The performance is not limited by the hardware. I can easily see that PX4 and ACM might not have yet the perfect flight modes and set up for racing, but there is nothing from a hardware or software perspective that would obstruct getting there.

Comment by Tobias Witting on January 17, 2016 at 2:41am

thanks for the comment PX4. I thought, though, that the trend is towards using a companion computer to talk to cameras etc. Also makes sense to use a full size pixhawk for this, but it would be nice to have one FC that can do it all. It'd be only one more PWM out...


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