#include <DacESP32.h>
// Define DAC pins
#define DAC_CH1 25
#define ledPin 4
// #define DAC_CH2 26

void setup() {
  pinMode(ledPin, OUTPUT);
  // Nothing here!
}

void loop() {
  // Generate a Sine Wave
  // Step one degree at a time
  for (int deg = 0; deg < 360; deg = deg + 1) {
    // Calculate sine and write to DAC
    dacWrite(DAC_CH1, int(128 + 64 * sin(deg * PI / 180)));
    analogWrite(ledPin, int(0 + 64 * sin(deg * PI / 180)));
    delay(10);
  }
}