void setup() {
pinMode(LED_BUILTIN, OUTPUT);
Serial.begin(115200);
TCCR1A = 0;
TCCR1B = bit(CS10);
TCNT1 = 0;
//digitalWrite(13, HIGH);
PORTB = bit(5);
unsigned int cycles = TCNT1;
Serial.print("Cycles: ");
Serial.println(cycles - 1);
Serial.print("Microseconds: ");
Serial.println((float)(cycles - 1) / 16);
}
void loop() {
// delay(1000);
//digitalWrite(LED_BUILTIN, LOW);
//delay(1000);
}