PX4 and Water Pump

PX4 Autopilot Multicopter 🛸
1

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

20210201_123858
20210201_1238584608×2592 2.14 MB

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161217964268571244201712287260322592×4608 1.98 MB

2

What are you trying to do with the water pump?

3

Hi,

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

Thanks

4

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

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5

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

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6

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.

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