   Serial.begin(115200);
   Serial.println(FPSTR(SETUPSTR));
 
-  pinMode(D1, OUTPUT);
-  pinMode(D2, OUTPUT);
-  pinMode(D3, OUTPUT);
+  pinMode(D1, OUTPUT);  /* RED */
+  pinMode(D2, OUTPUT);  /* GREEN */
+  pinMode(D4, OUTPUT);  /* BLUE */
+  pinMode(D3, INPUT);   /* for the FLASH => reset config button */
+
   analogWriteFreq(PWM_FREQ);
   analogWriteRange(1023);
 

void loop() {
  // put your main code here, to run repeatedly:
  // myServer.handleClient();
  delay(2000);
}

    ESP.reset();
  }

  /* No saved config file => start in AP mode with the config portal */
  if (!hasSavedConfig) {
    // Setup WiFiManager and start the config portal
    WiFiManager wfMan;
