/* STM32 Blue Pill project using the STM32 Arduino Core (stm32duino) MY COPY */
#define LED PB9
void setup() {
Serial.begin(115200);
Serial.println("Hello STM32!");
Serial.println("Welcome to Wokwi :-)");
pinMode(LED, OUTPUT);
}
void loop() {
digitalWrite(LED, LOW);
delay(500);
digitalWrite(LED, HIGH);
delay(500);
}