RC Car 2 DC Motors L298N doesn't work

Projects General Guidance
1

Receiver hardware : Arduino Pro Mini Atmega 168 3.3V 8Mhz, L298N Module, NRF24L01 and 2 DC Motors
Emmeter hardware : Arduino Pro Mini Atmega 328P 5V 16Mhz, 2 Joystick, NRF24L01 (unused : 4 button, 2 potentiometer, 2 toggle switch)

Hello everyone, i must work on a RC Car project for the school (a Amphibious Tesla Cybertruck) and I chose as a base the RC Car project of HowToMechatronics

For the propulsion i chose to use two parallel motors
I want to control each motor with a joystick.
But when I plug everything in, everything lights up but the motors don't move.
I don't know if it's related to the hardware (not the same Arduino for example) or to the code.

I tried to copy and paste the exact same code in the HowToMechatronics video but it doesn't work there either.

I don't know much about Arduino and I have to finish this before the end of this week

I hope you can help me
**Thank you **
(and sorry for my bad english :cold_sweat:)

Link of the original work by HowToMechatronics :

And the code i use in attachement

recepteur_projet_tesla.ino (4.18 KB)

emmeteru.ino (2.72 KB)

2

You missed to specify essential details:

  • datasheets of your motors
  • your power supply for the motors

Your power supply may be to weak in both current and voltage.

3

DrDiettrich:
You missed to specify essential details:

  • datasheets of your motors
  • your power supply for the motors

Your power supply may be to weak in both current and voltage.

Hello, i didn't specifie this because i know the motors works and the power supply is more than enough, but this is the motors i buy "Trouvez Machine de coupe de moteur électrique 23T en ligne | Carson" and this is the battery "https://www.amazon.fr/gp/product/B07R3BML88/ref=ppx_yo_dt_b_asin_title_o02_s00?ie=UTF8&psc=1"

4

If you are trying to drive those motors from an ancient L298N then forget it. The motors can easily take 10A or more, the L298N can supply 2A on a good day. Either use the original motors or a much better driver.

And note your chosen motors produce high revs. Unless you are using lots of gearing your car will try to go ridiculously fast and be uncontrollable.

Steve

5

slipstick:
If you are trying to drive those motors from an ancient L298N then forget it. The motors can easily take 10A or more, the L298N can supply 2A on a good day. Either use the original motors or a much better driver.

Ok so according to you I have to forget the L298N because the motors are too powerful.
Unfortunately i can't use any other motors
Have you another solution so that I can control both motors with an arduino?
And which driver do you recommand me?

6

Anyone?

7

Here is a starting point. A little Googling will give you many more options from other suppliers.

Start by getting the motors to run with a very simple test sketch, before adding the rest of the robot logic.

8

This topic was automatically closed 120 days after the last reply. New replies are no longer allowed.