// Servo Sweep example for the ESP32
// https://wokwi.com/arduino/projects/323706614646309460

#include <ESP32Servo.h>

const int servoPin = 18;
#define BUTTON_PINSW 19
#define LED_PIN 14  
#define BTN_PINLED 12   


Servo servo;
int brightness = 50;

void setup() {
  servo.attach(servoPin, 500, 2400);
  Serial.begin(115200);
  pinMode(BUTTON_PINSW, INPUT_PULLUP);
  pinMode(LED_PIN, OUTPUT);     // configure LED pin as output
  pinMode(BTN_PINLED, INPUT_PULLUP);     // configure push-button pin as input with internal pull-up resistor
  attachInterrupt(digitalPinToInterrupt(BTN_PINLED), increaseBrightness, FALLING);
}

int pos = 0;
int lastState = HIGH;

void loop() {
  int value = digitalRead((BUTTON_PINSW));
  
  if (value == LOW) {
  swingmode();
  }
  if (value == HIGH) {
       nomalmode();
      }
  
  analogWrite(LED_PIN, brightness * 255 / 100);    // set LED brightness based on current brightness level
  delay(100); 
  
}
 

void swingmode(){
    if (true) {
      for (pos = 0; pos <= 180; pos += 1) {
      servo.write(pos);
      delay(15);
    }
      for (pos = 180; pos >= 0; pos -= 1) {
      servo.write(pos);
      delay(15);
  }
    }
}


void nomalmode(){
    if (true) {
      servo.write(90);
      delay(15);
    
    }
     
}

void increaseBrightness() {
  brightness += 10;    // increment brightness by 10%
  if (brightness > 100) {    // if brightness exceeds 100%, reset it to 0%
    brightness = 0;
  }
}