Speed and direction control of x2 3V DC motors

Projects General Guidance
1

Hello,
I want to control two DC motors with a L298N module.
I used the following code:

const int IN1 = 3;
const int IN2 = 4;
const int IN3 = 5;
const int IN4 = 6;

const int ENA = 2;
const int ENB = 7;

void setup() {
 pinMode (IN1, OUTPUT);
 pinMode (IN2, OUTPUT);
 pinMode (IN3, OUTPUT);
 pinMode (IN4, OUTPUT);
 pinMode (ENA, OUTPUT);
 pinMode (ENB, OUTPUT);
}

void loop() {

 analogWrite(ENA, 255);
 analogWrite(ENB, 255);
 
 digitalWrite(IN1,HIGH);
 digitalWrite(IN2,LOW);
 digitalWrite(IN3,HIGH);
 digitalWrite(IN4,LOW);
 
}

After uploading the code i have no result.
Is there a mistake in the code? or it might be because of the power source i use?
I mention that as a power source i use x4 AA rechargeable battery of 1.2V each connected in series.
Also i mention that i checked the conection twice.

Thank you!

2

Please use code tags, up to the left in this window.
Attach the wiring. How do You exprct us to check it and find any mishaps?

3

Here are the code tags:

const int IN1 = 3;
const int IN2 = 4;
const int IN3 = 5;
const int IN4 = 6;

const int ENA = 2;
const int ENB = 7;

void setup() {
  pinMode (IN1, OUTPUT);
  pinMode (IN2, OUTPUT);
  pinMode (IN3, OUTPUT);
  pinMode (IN4, OUTPUT);
  pinMode (ENA, OUTPUT);
  pinMode (ENB, OUTPUT);
}

void loop() {

  analogWrite(ENA, 255);
  analogWrite(ENB, 255);
  
  digitalWrite(IN1,HIGH);
  digitalWrite(IN2,LOW);
  digitalWrite(IN3,HIGH);
  digitalWrite(IN4,LOW);
  
}

And the wiring diagram

wiring.PNG
wiring.PNG918×641 91.5 KB

4

There doesn't appear to be anything powering the Arduino.

What are the motors doing? Maybe your batteries simply can't provide enough current to make them move.

5

The arduino is powered via USB from my laptop.

Now i added 8 batteries in series and the motors ar working fine at full speed but if i want to decrease the power, for example putting analogWrite value from 255 each to 125 each they will stop working, but for example if i put analogWrite value 255 to 0 for one of them (ex: ENA) and i put analogWrite value from 255 to 125 for the other (ex: ENB) the motor that have the value to 0 will not move and the other will move slowly.

Now my question is: How can i make both of them both work at a lower speed since the power isn't a problem because they both work fine at full speed.