#include <Arduino.h>

const byte pwm_gpio = 4; // the PWM pin the Motor is attached to
int duty = 255*0.3;    // speed of Motor
const int SpeedControl = 1; // SpeedControl pin
int Speed_Control_State; 

void setup() {
  // put your setup code here, to run once:
  Serial.begin(115200);
  Serial.println("Hello, ESP32-C3!");

  pinMode(SpeedControl, INPUT);

  // Initialize channels
  // channels 0-15, resolution 1-16 bits, freq limits depend on resolution
  // ledcSetup(uint8_t channel, uint32_t freq, uint8_t resolution_bits);
  #ifdef ESP_ARDUINO_VERSION_MAJOR
  #if ESP_ARDUINO_VERSION >= ESP_ARDUINO_VERSION_VAL(3, 0, 0)
    ledcAttachChannel(pwm_gpio, 5000, 8, 0); // 5kHz PWM, 8-bit resolution
  #else
    ledcAttachPin(pwm_gpio, 0);
    ledcSetup(0, 5000, 8);  
  #endif
  #endif

}

void loop() {

  ledcWrite(pwm_gpio, duty); // set the duty of the Motor

  Speed_Control_State = digitalRead(SpeedControl);

  // change speed based on current state of SpeedControl pin
  if (Speed_Control_State == HIGH) { 
    duty = 255*0.6;
  } else {
    duty = 255*0.3;
  }
  


  // wait for 50 milliseconds to check change in SpeedControl pin
  delay(50);
}