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/*
The DRV8871 is a motor driver IC designed to control DC motors. Below is a simple example Arduino code to use with the DRV8871 DC Motor Driver. Note that you'll need to connect the appropriate pins from your Arduino to the motor driver according to the datasheet.
 
This code demonstrates how to control a DC motor using PWM for speed control and two digital pins for direction control. Adjust the pin assignments based on your actual wiring. The example includes forward and reverse motions with a brief stop in between. The motorControl function sets the motor speed and direction.
 
Please refer to the DRV8871 datasheet for the correct pin connections and specifications based on your motor and power supply.
*/
 
// Define the pins for motor control
const int motorPWM = 9;    // PWM input for motor speed control
const int motorINA = 8;    // Input A for motor direction control
const int motorINB = 7;    // Input B for motor direction control
 
void setup() {
  // Set the motor control pins as outputs
  pinMode(motorPWM, OUTPUT);
  pinMode(motorINA, OUTPUT);
  pinMode(motorINB, OUTPUT);
  
  // Initialize the motor in the stopped state
  digitalWrite(motorINA, LOW);
  digitalWrite(motorINB, LOW);
  
  // Start the serial communication for debugging (optional)
  Serial.begin(9600);
}
 
void loop() {
  // Run the motor forward for 2 seconds
  motorControl(255, HIGH, LOW);
  delay(2000);
  
  // Stop the motor for 1 second
  motorControl(0, LOW, LOW);
  delay(1000);
  
  // Run the motor in reverse for 2 seconds
  motorControl(255, LOW, HIGH);
  delay(2000);
  
  // Stop the motor for 1 second
  motorControl(0, LOW, LOW);
  delay(1000);
}
 
// Function to control the motor
void motorControl(int speed, int inA, int inB) {
  analogWrite(motorPWM, speed);   // Set motor speed
  digitalWrite(motorINA, inA);   // Set direction A
  digitalWrite(motorINB, inB);   // Set direction B
  
  // Optional: print motor speed and direction for debugging
  Serial.print("Speed: ");
  Serial.println(speed);
  Serial.print("Direction: ");
  Serial.println((inA == HIGH) ? "Forward" : (inB == HIGH) ? "Reverse" : "Stop");
}