Not able to operate motor pumps simultaneously

[Priyanka Dixit]

Hello Team, we are working on a project using 2 number of 12V kamoer water pumps and trying to control using an ESP32. We are controlling them through MOSFETs. The setup works perfectly when we are running one pump at a time. However, when we try to run 2 pumps simultaneously, one of them doesn't turn on.

We are using a 12V 6A power supply Based on the specifications of the water pumps, we assumed this would be enough current, but we might be missing something.

Is there any power supply issue? Should we need to use a higher current supply, or are there any other considerations I should take into account?

Is there any resolution for dealing with controlling multiple motors/pumps with ESP8266?Any advice would be greatly appreciated!

[nitishmano]

is the motor making sound or you can check voltage when run both motors, if the circuit takes more current than voltage will go down ,or run both motor one by one if its ok than your motor side is ok problem may with power side also check and be sure of all connections

[ankushajmani1652]

My simple approach to complex projects, is to use LED's first, instead of heavy output devices.
This way I can confirm that the code and MCU part is working fine.
The I can further tackle the output device as per my choice.

In your case instead of mosfets, first test your programs, with two output LED's.
If they work fine, then probably there is problem with your mosfet circuit.

For troubleshooting that you will have to share the circuit diagram for the mosfets.

And, if the LED's do not light up correctly, then trying changing the output pins.

[Priyanka Dixit]

There is no sound from motor and not taking current, I have tried everything. There is no issue with code as well. I think as you said, I need to check the mosfets.