/*
   Written by R. Jordan Kreindler, 12/2017
    PWM digital pin ~3 in series with 10M ohm resistor
    and connected to MOSFET Gate

   Fan placed between MOSFET Source and Drain
*/

int delay1 = 6000;

// PMW pin 3
#define PWM1 3

void setup()
{
  // Set PWM pin for output
  pinMode(PWM1, OUTPUT); 
}

void loop()
{
  // We turn the fan on and off
    analogWrite(PWM1, 255);
    delay(delay1);
    analogWrite(PWM1, 0);
    delay(delay1);1
} // End