This thread is for users of the new Pixracer flight controller . Feedback would be very welcome.

Note: updated pixracer doc is here: mRo Pixracer | PX4 User Guide

Just as update: Its the sort of initial feedback we expected, given this is the first step into that area. We found a couple of things we’d like to improve and will get back to you when its ready for another testing round.

olex and schlumpfteam, Try setting parameter ATT_BIAS_MAX to 0.0, and increasing your roll and pitch rate P gains. I was able to double mine from 0.05 to 0.1, but the optimal value depends on your particular machine. Do you have your own procedure for PID tuning?

Hi, did you solve your issue with the WiFi connection? I too made some change (I changed Channel from 11 to 4) and since then I am unable to connect via WiFi. If you solved your issue, please let me know how you did it. Thanks

Not yet. I’m probably going to have to reflash the firmware. It seems like changing any of the wifi params with QGC makes it unusable.

Sorry to hear that. I did let our developers know and we’ll provide a factory reset button in QGC. Bear with us, the racing effort is all carried by volunteers committed to offer a great user experience, but it will take a short amount of time to get everything right.

that is really too bad! Actually, I tried to reflash the ESP8266 numerous times, with no success. Flashing worked when it first arrived using NodeMCU and FTDI Adapter. Now, flashing does not work. Yesterday, I gave up and ordered new ESP8266. But again, funny thing is that I can actually still conn…

I also flashed with MavLink ESP8266 Firmware from px4 website using NodeMCU and FTDI Adapter. I can connect my computer to 8266 but QGC doesn’t find it… The 3d radios work fine with TL1…

For me, QGC 2.9.4-31 running on Ubuntu 15.10 is taking about 30 seconds to upload parameters and connect via 8266. Connection via QGC/Android on a Nexus7 takes about half as long to upload parameters.

After flashing the latest px4master firmware (29.2.2016 21:30). I could arm my quad but the motors did not spin. Until today it was always working. I did a esc cali ration with the qgc 2.9.4 but itdid ot help. I reflashed the pixracer with the stable version andit worked fine. Arming in stabilize …

Pixracer Feedback Thread

PX4 Autopilot

LorenzMeier February 18, 2016, 4:07pm 80

Here are settings which should improve / fix the rate performance: Pixraxer as a RACER

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Pixracer Feedback Thread

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