/*
  ESP32 DAC - Simple Waveform Experiment
  espdac-wave.ino
  ESP32 DAC Waveform Demo
  Outputs a Sine Wave
  
  DroneBot Workshop 2022
  https://dronebotworkshop.com
*/

// Define DAC pins
#define DAC_CH1 25
#define DAC_CH2 26

void setup() {
  // 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)));
  }
}