This prevents motor "noise" from resetting your Arduino. Pin Assignments
To write your own code without a library, you must understand this internal map. hw 130 motor control shield for arduino datasheet better
The basic example from the datasheet often uses digitalWrite() for direction and analogWrite() for speed. Here’s a implementation: This prevents motor "noise" from resetting your Arduino
The HW-130 routes the L298N pins to specific Arduino pins. This is the critical reference for your code. Here’s a implementation: The HW-130 routes the L298N
Do not ignore the . The HW-130 includes 1N4007 diodes on board, but those are too slow for PWM. Better upgrade: solder 1N5819 Schottky diodes across OUT1-2 and OUT3-4 (cathode to positive supply, anode to output).
#include <AFMotor.h>
If you are looking for specific, in-depth of the circuit board layout, let me know, and I can try to find them. How to Use L293D Motor Driver Shield With Arduino