#define Led PC13
#define Led PC14
#define Led PC15
void setup()
{
pinMode (PC13, OUTPUT);
pinMode (PC14, OUTPUT);
pinMode (PC15, OUTPUT);
Serial.begin(115200);
Serial.println("Hello, STM32!");
}
void loop()
{
digitalWrite(PC13, HIGH);
delay(1000);
digitalWrite(PC13, LOW);
delay(1000);
digitalWrite(PC14, HIGH);
delay(2000);
digitalWrite(PC14, LOW);
delay(2000);
digitalWrite(PC15, HIGH);
delay(3000),
digitalWrite(PC15, LOW);
delay(3000);
}