8 channel motor driver

[medwardl]

Does anyone know if an 8 channel motor driver exists? I'm working on a watering system and I need to operate 8 fluid pumps which are 12volts 5w. Currently I have 4 L298N to do the job but I would like to cut it down to one driver to handle all the motors.

[TomGeorge]

Hi, @medwardl
Welcome to the forum.

Do you want to control the pump speeds or just ON/OFF.

If just ON/OFF you can use a relay.
Or a MOSFET for each pump motor if you want to control speed.

L298 are for speed control and changing direction, you don't need any thing as sophisticated as that.

https://forum.arduino.cc/t/how-to-get-the-best-out-of-this-forum

Thanks.. Tom..

[medwardl]

I just need on and off, I still have to figure out what the flow rate is going to be on them because these ones are going to be for measuring out nutrients.

[TomGeorge]

Hi, @medwardl

So you only need one output pin per motor.
Using a MOSFET will give you the option of PWM speed control if you need it.

What model Arduino controller are you using?

Thanks.. Tom..

[medwardl]

I'm using a mega 2560. thanks for the help.