⚙️ L298N Motor Driver

📌 Description

The L298N is a special board that lets the robot control motors. It acts like a bridge between the brain (the microcontroller) and the motors, giving them the right amount of power and direction.

🎯 Use

In our projects, the L298N is used to:

Make wheels spin forward or backward.
Control the speed and direction of motors.
Drive one or two motors at the same time.

👉 Think of the L298N as the robot’s driver’s license — it allows the robot to move safely and correctly.

Module parameters Click here to return to the table of contents

Pin name	Description
G	GND (Power Input Negative)
V	VCC (Power Input Cathode)
IN1	Motor control signal pin A1
IN2	Motor control signal pin A2
IN3	Motor control signal pin B1
IN4	Motor control signal pin B2

Supply voltage: 7V/26V
Connection: PH2.0 terminal wire
Installation method: double screw fixing

🖥️ Code Explanation

import machine
import time

pin16 = machine.Pin(16, machine.Pin.OUT)   # Motor control pin A1
pin17 = machine.Pin(17, machine.Pin.OUT)   # Motor control pin A2

while True:
    pin16.value(1)     # Motor spins forward
    pin17.value(0)
    time.sleep(2)      # Keep spinning for 2 seconds

    pin16.value(0)     # Motor spins backward
    pin17.value(1)
    time.sleep(2)      # Keep spinning for 2 seconds

Step by Step

import machine & import time → Tools to control pins and add pauses.
pin16 and pin17 → These two pins decide the motor’s direction.
while True: → Loop that repeats forever.
pin16.value(1), pin17.value(0) → Motor spins forward for 2 seconds.
pin16.value(0), pin17.value(1) → Motor spins backward for 2 seconds.
👉 Together, the motor alternates between forward and backward movement.

✅ Conclusion of the Test

If the motor spins forward for 2 seconds, then backward for 2 seconds, the program is working correctly.
This test shows how the L298N can control motor direction using two pins.
Later, you can add a second motor by connecting it to the other inputs of the L298N, allowing the robot to move both wheels independently.