If you want, I can:
const int IN1 = 2; // direction pin 1 const int IN2 = 3; // direction pin 2 const int ENA = 5; // PWM pin (must be PWM-capable) hw 130 motor control shield for arduino datasheet
// Reverse at 50% speed digitalWrite(IN1, LOW); digitalWrite(IN2, HIGH); analogWrite(ENA, 128); delay(2000); If you want, I can: const int IN1