const int ledPin = PC13; // Built-in LED pin on Nucleo STM32F031K6

void setup() {
  pinMode(ledPin, OUTPUT); // Initialize the LED pin as an output
}

void loop() {
  digitalWrite(ledPin, HIGH); // Turn the LED on
  delay(1000); // Wait for 1 second
  digitalWrite(ledPin, LOW); // Turn the LED off
  delay(1000); // Wait for 1 second
}