const int totalSteps = 100;
const int microstepDelay = 1000;

int gpio_pins[] = {4, 5, 18, 19};  // Define the 4 GPIO pins to control the stepper motor

void setup() {
    // Set GPIO pins as outputs
    for (int i = 0; i < 4; i++) {
        REG_WRITE(GPIO_ENABLE_W1TS_REG, (1 << gpio_pins[i]));  // Enable the GPIO pin as output
    }
}

void step_motor1() {
    // Sequence for a 4-step motor control, assuming it's a 4-phase stepper
    static int stepSequence[4][4] = {
        {HIGH, LOW, LOW, LOW},    // Step 1
        {HIGH, HIGH, LOW, LOW},   // Step 2
        {LOW, HIGH, LOW, LOW},    // Step 3
        {LOW, HIGH, HIGH, LOW}    // Step 4
    };

    // Loop through each step in the sequence
    for (int i = 0; i < 4; i++) {
        for (int j = 0; j < 4; j++) {
            // Set each pin according to the step sequence
            if (stepSequence[i][j] == HIGH) {
                REG_WRITE(GPIO_OUT_W1TS_REG, (1 << gpio_pins[j]));  // Set the pin HIGH
            } else {
                REG_WRITE(GPIO_OUT_W1TC_REG, (1 << gpio_pins[j]));  // Set the pin LOW
            }
        }
        delay(microstepDelay);  // Wait before next step
    }
}

void loop() {
    // Step the motor a certain number of steps
    for (int i = 0; i < totalSteps; i++) {
        step_motor1();  // Perform one step of the motor
    }
}