First look at the PX4 Mini Autopilot

pixhawk

#1

I recently got my hands on a PX4 Mini v1.4 autopilot board. The PX4 mini is what you get when a Pixhawk and a Naze 32 does what two boards in love do, and the PX4 mini is the result. So you can think of it as a racing


This is a companion discussion topic for the original entry at http://blog.dronetrest.com/first-look-at-the-px4-mini-autopilot/

#2

Hi,
is this controller compatible with FrSky/Taranis SBUS receivers or they need to be configured to PPM protocol? I would be using aFrSky XSR receiver.
Cheers,
Eb


#3

Yes it is combatible with sbus, it works exactly like the pixhawk. For example I use the X8R via sbus with no problems. However for other receivers such as X4R-SB you might need an sbus inverter (I have not checked). But even easier if using the X4R-SB you can just bind it in ppm mode if sbus does not work and it will work with the px4mini with no problems.


#4

Can you confirm the power connector for this FC please, I assume it’s a 6 pin JST SH connector?

At which point an existing power module with the correct connector could be used


#5

Yes you are correct, its the same pinout as the pixhawk power module so you can use a standard power module with this board, although they have DF13 connectors, but both have the same hole pitch and are ‘loosely’ compatible


#6

OK so I’me probably missing something
obvious but if I use JR radio how would I connect the receiver
channels to the PX4 Mini? I can see the 8 outputs for the ESC’s but
now individual channel inputs.


#7

Does your JR radio only support PWM? If so then you will just need to use a PPM encoder to convert the PWM signals into a single PPM.

PX4 autopilot only accepts SBUS or PPM inputs. If you dont know what these mean then check our our guide that explains radio control protocols


#8

JR does have a system similar to Futaba SBus called XBus and but they are not compatible. This only leaves the usual PWM outputs but I can see now that the PPM encoder should work.


#9

Hi Alex
Thanks for this guide
I am considering moving to this from APM-MINI
Am I correct in thinking this has more processing power and will run the latest 3.4.1 software that APM-MINI rejects ?
Would you recommend this as a APM-MINI replacement, on both 550 Hex and 250 Quad
Thanks
Steve :slight_smile:


#10

Yeah definitely it’s a good replacement and runs the latest ardupilot firmware, also has better sensors and comes in an aluminium case :slight_smile:


#11

Thanks Alex
I’ll order one tonight :joy:
Cheers
Steve :slight_smile:


#12

Just decided buy buy a PX4 Mini and it’s out of stock! Any idea when it will be re-stocked?
Cheers
Steve


#13

:frowning: just ran out of stock yesterday ,but more are being made so should have some in in about 1 week. Have you added your email to get a notification when its back in stock?


#14

Yes I have added my email to stock notifications.
Steve