Arduino Forum

Topics => Robotics => Topic started by: aarush1212 on May 25, 2019, 09:15 am

Title: Help!!! Can l298n motor driver take 5v instead of 12 volts
Post by: aarush1212 on May 25, 2019, 09:15 am
i am pretty beginner in this i am creating a robot for my school project(yea i am in school) so i would just like to know that can  l298n motor driver take 5v instead of 12 volts as i want to run 2 5v motors and i think i may have to remove that voltage regulator jumper and supply 5v from arduino that's my guess if it can take 5v
Title: Re: Help!!! Can l298n motor driver take 5v instead of 12 volts
Post by: slipstick on May 25, 2019, 10:53 am
You can't safely run motors from the Arduino 5V pin. The L298N motor driver needs a separate supply.

It doesn't have to be 12V but since you are likely to lose around 2-3V in the chip to be sure of getting 5V to the motors you need to supply more than that to the motor driver. 4 or 5 AA batteries is about the minimum practical. Don't try using a little rectangular 9V battery because they can't provide enough current to run motors successfully.

Steve
Title: Re: Help!!! Can l298n motor driver take 5v instead of 12 volts
Post by: jremington on May 25, 2019, 07:11 pm
Consider replacing the ancient, weak and energy-wasting L298 motor driver with a modern, efficient one (https://www.pololu.com/category/11/brushed-dc-motor-drivers).
Title: Re: Help!!! Can l298n motor driver take 5v instead of 12 volts
Post by: Idahowalker on May 28, 2019, 08:33 pm
i am pretty beginner in this i am creating a robot for my school project(yea i am in school) so i would just like to know that can  l298n motor driver take 5v instead of 12 volts as i want to run 2 5v motors and i think i may have to remove that voltage regulator jumper and supply 5v from arduino that's my guess if it can take 5v
This might help you answer that question:

https://www.youtube.com/watch?v=_rSHqvjDksg (https://www.youtube.com/watch?v=_rSHqvjDksg)