/* Program 5-2: Use delayMicroseconds() function to toggle a pin. Use a Scope to see the wave generated on the output pin*/

const int outpin = 12;         /* pin */

void setup() {
    pinMode(outpin, OUTPUT);   /* set pin as output */
}

void loop() {
    static int onOff = LOW;
    
    onOff = !onOff;             /* toggle the value of the variable */
    digitalWrite(outpin, onOff);   /* set outpin on/off by the variable */
    delayMicroseconds(16000);  /* delay 16000 microseconds */
}