/*
  XIAO ESP32-C3 — servo open/close test
  -------------------------------------
  Sweeps the servo between "closed" and "open" once per second.

  Per the schematic:
     Servo signal -> D6
     Servo power  -> BatVIN   Servo GND -> GND   (J3 connector)

  Library: install "ESP32Servo" from the Library Manager.
  (The plain Arduino "Servo" library does NOT work on ESP32.)
*/

#include <ESP32Servo.h>

Servo myServo;

const int SERVO_PIN    = D6;   // = GPIO21 on the XIAO ESP32-C3
const int CLOSED_ANGLE = 0;    // adjust to your mechanism
const int OPEN_ANGLE   = 90;   // adjust to your mechanism

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

  ESP32PWM::allocateTimer(0);
  myServo.setPeriodHertz(50);            // standard 50 Hz hobby servo
  myServo.attach(SERVO_PIN, 500, 2400);  // min/max pulse width (us)

  myServo.write(CLOSED_ANGLE);
  delay(500);
}

void loop() {
  myServo.write(OPEN_ANGLE);
  Serial.println("Open");
  delay(1000);

  myServo.write(CLOSED_ANGLE);
  Serial.println("Closed");
  delay(1000);
}