#include <ESP32Servo.h>

Servo myServo;

const int SERVO_PIN   = D5;   // GPIO7  — signal wire
const int BUTTON_180  = D0;   // GPIO2  — press to go to 180 degrees
const int BUTTON_0    = D1;   // GPIO3  — press to go to 0 degrees

int currentAngle = 0;

void setup() {
  Serial.begin(115200);

  // Internal pull-up: pin reads HIGH normally, LOW when button pressed
  pinMode(BUTTON_180, INPUT_PULLUP);
  pinMode(BUTTON_0,   INPUT_PULLUP);

  myServo.attach(SERVO_PIN, 500, 2500);
  myServo.write(currentAngle);
  delay(1000);

  Serial.println("Ready. Press a button.");
}

void loop() {
  // Button pressed = pin goes LOW (because other leg is GND)
  if (digitalRead(BUTTON_180) == LOW) {
    if (currentAngle != 180) {
      currentAngle = 180;
      myServo.write(currentAngle);
      Serial.println("Moving to 180 degrees.");
    }
    delay(200);  // Debounce
  }

  if (digitalRead(BUTTON_0) == LOW) {
    if (currentAngle != 0) {
      currentAngle = 0;
      myServo.write(currentAngle);
      Serial.println("Moving to 0 degrees.");
    }
    delay(200);  // Debounce
  }
}