/*ESP32 - Lab2 - Slow Blink Led PWD*/
#define LEDC_CHANNEL_0 0
#define LEDC_TIMER_13_BIT 13
#define LEDC_BASE_FREQ 5000
#define LED_PIN 2
int brightness = 0;
int fadeAmount = 5;
void ledcAnalogWrite(uint8_t channel, uint32_t value, uint32_t valueMax = 255)
{
 uint32_t duty = (8191 / valueMax) * min(value, valueMax);
 ledcWrite(channel, duty);
}
void setup() {
 ledcSetup(LEDC_CHANNEL_0, LEDC_BASE_FREQ, LEDC_TIMER_13_BIT);
 ledcAttachPin(LED_PIN, LEDC_CHANNEL_0);
}
void loop() {
 ledcAnalogWrite(LEDC_CHANNEL_0, brightness);
 brightness = brightness + fadeAmount;
 if (brightness <= 0 || brightness >= 255) {
 fadeAmount = -fadeAmount;
 }
 delay(30);
}