Pixhawk 2.1 Agro Sprayer

I want to make an agricultural drone with Pixhawk 1. There is no progress in the sprayer scheme. I have a pump with esc for pump. Could you tell me how to connect to Pixhawk?

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Hi @UPstone Sir,
Please follow this https://ardupilot.org/copter/docs/sprayer.html#enabling-the-sprayer.
If any doubts, please share your pump circuit.

Thanks and regards

DO_SPRAYER commands are now fully supported in missions (4.1.0-dev)

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@amilcarlucas sir regarding DO_SPRAYER is there any wiki. if there please share me sir. i am also Search in wiki.:slightly_smiling_face:

Thanks and regards

No, no wiki yet. You``ll have to wait until 4.1.0 gets released.

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ok @amilcarlucas sir, i will Search in mission commands.

Thanks for the interest.

I connected pump esc to aux1.




The pump is not working.

When the pump esc is connected to the receiver, the pump is operated.

How can I connect to aux1 and operate the pump?

is there any estimated release date for 4.1 stable ?

@UPstone If you are using ArduCopter 4.1.0-dev you need to activate the pump using a mavlink command or a mission command. Manual activation with RC9 is not possible when you select SERVO9_FUNCTION = 22

If you are using ArduCopter 4.0.7 then you should set SERVO9_FUNCTION = 1
And you must manually control it.

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No, No date yet, but the beta testing should start soon.


The OpenTx guys have the best answer to that question. “No” :slight_smile:

servo9_function 1 is “Rc pass thru” … right?

Depends on which fw version you use

I use 4.0.5

4.0.5 servo9_fuction 1 is RCpass Thru

and function 22 sprayer pump menu does not appear.

For that version please follow the instructions on https://ardupilot.org/copter/docs/sprayer.html#enabling-the-sprayer