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src/main.cpp

@@ -0,0 +1,30 @@
+#include <Arduino.h>
+
+const byte led_gpio = 15; // the PWM pin the LED is attached to
+int brightness = 0;    // how bright the LED is
+int fadeAmount = 5;    // how many points to fade the LED by
+
+// the setup routine runs once when you press reset:
+void setup() {
+  ledcAttachPin(led_gpio, 0); // assign a led pins to a channel
+
+  // 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);
+  ledcSetup(0, 4000, 8); // 12 kHz PWM, 8-bit resolution
+}
+
+// the loop routine runs over and over again forever:
+void loop() {
+  ledcWrite(0, brightness); // set the brightness of the LED
+
+  // change the brightness for next time through the loop:
+  brightness = brightness + fadeAmount;
+
+  // reverse the direction of the fading at the ends of the fade:
+  if (brightness <= 0 || brightness >= 255) {
+    fadeAmount = -fadeAmount;
+  }
+  // wait for 30 milliseconds to see the dimming effect
+  delay(50);
+}