PX4 and Water Pump

DusanP · February 1, 2021, 11:39am

Hi everyone,

I am trying to connect a water pump to my octocopter coax which has pixhawk4 and px4 on it.

The pump has separate 12v battery and a +,- and S wires. Can you please advise where should I connect these 3 wires on the PMB (PDB), and how to set it up in QGC to a specific switch on the controller?

Thanks a lot

JingerZ · February 2, 2021, 4:35am

What are you trying to do with the water pump?

DusanP · February 2, 2021, 6:54am

Hi,

I’m trying to use it to spray water from the vehicle.

Thanks

jmail37 · February 4, 2021, 10:31pm

No replies? Support not very good for pixhawk, might use another product. Not the first time, still struggling with mine.

Katawan · February 5, 2021, 8:16am

Did you try to ask on the hardware slack channel ? Sometimes you have more chance to get an answer there

DusanP · February 19, 2021, 8:48am

Figured out on our own. In case anybody want’s to do the same. Use AUX 1 ports on the power board. So connect a thin (white, red, black) cable to the AUX 1 port. Then assign a switch in QGC to trigger this port and there you go.