// first wrover sketch from the lessons
// NOTE: Wrover onboard LED HIGH = off LOW = ON, opposite of Arduino
#define LED_BUILTIN 2  // use GPIO pin 2 for output

int br = 115200;  // speed increase remember to set in SM
int dt = 2000;  // set delay time btwn movements
int redPin = 4;
int greenPin = 2;
int bluePin = 15;

String ledHigh = "GPIO pin 2 is HIGH, onboard off, external LED on";
String ledLow = "GPIO pin 2 is LOW, onboard ON, external LED OFF";

void setup() {
  Serial.begin(br);
  pinMode(LED_BUILTIN, OUTPUT);
  pinMode(redPin, OUTPUT);
  pinMode(greenPin, OUTPUT);
  pinMode(bluePin, OUTPUT);
}

void loop() { // adjust frame before you render it
  digitalWrite(LED_BUILTIN, HIGH);
  analogWrite(redPin, 255);
  analogWrite(greenPin, 0);
  analogWrite(bluePin, 0);
  Serial.println(ledHigh);
  delay(dt);
  
  digitalWrite(LED_BUILTIN, LOW);
  analogWrite(redPin, 0);
  analogWrite(greenPin, 0);
  analogWrite(bluePin, 0);
  Serial.println(ledLow);
  delay(dt);
  
}