Module 09 // H-Bridge Drivers

Autonomous Obstacle-Avoidance Rover

Integrates L298N Dual H-Bridge motor logic gates to trigger reverse and spin maneuvers when front telemetry values narrow down.

📋 L298N Inductive Motor Mapping

Driver Logic Pin	Vector Mapping	Target Uno Pin
IN1 (Left Forward)	====>	Digital Pin 5
IN2 (Left Backward)	====>	Digital Pin 4
IN3 (Right Forward)	====>	Digital Pin 3
IN4 (Right Backward)	====>	Digital Pin 2

💻 Machine Navigation Firmware

const int LM_F = 5; const int LM_B = 4;
const int RM_F = 3; const int RM_B = 2;

void setup() {
  pinMode(LM_F, OUTPUT); pinMode(LM_B, OUTPUT);
  pinMode(RM_F, OUTPUT); pinMode(RM_B, OUTPUT);
}

void loop() {
  // Hardwired demonstration sequence: Engine engagement
  digitalWrite(LM_F, HIGH); digitalWrite(RM_F, HIGH);
  delay(2000);
  // Collision Pivot Turn
  digitalWrite(LM_F, LOW);  digitalWrite(RM_B, HIGH);
  delay(600);
}