#define LED 8
void setup() {
Serial.begin(115200);
Serial.println("Start!");
// put your setup code here, to run once:
pinMode(LED, OUTPUT);
}
int i = 0;
void loop() {
// put your main code here, to run repeatedly:
digitalWrite(LED, HIGH);
delay(100);
digitalWrite(LED, LOW);
delay(100);
Serial.println(i++);
}