// This sketch arms the Platinum ESC
int escPin = 9;
int arm = 1000; // pulse width in microseconds for arming
int startupvalue = 1300; //pulse width in microseconds for startup
int startuptime = 5000; //5000 ms delay for startup
int speedvalue = 1900; // pulse width in microseconds for operation
void setup()
{

  // It appears that the ESC will accept a range of values for the arming
  // sequence. This provides 10 pulses with a pulse width of 1000 us with
  // with a 20 ms delay between pulses.
  pinMode(escPin, OUTPUT);
  for (int count = 0; count < 150; count++) {
    digitalWrite(escPin, HIGH);
    delayMicroseconds(arm);
    digitalWrite(escPin, LOW);
    delay(20);
  }
}

void loop()
{
  // Once armed the ESC needs to receive a pulse train to operate the
  // the motor. The motor speed is controlled by the duration of the
  // pulse width.
  // This simple loop provides a pulses width a width of 1350 us and a
  // separation of 20 ms.

  // Startup in the first 5000 ms
  if (millis() < startuptime) {
    digitalWrite(escPin, HIGH);
    delayMicroseconds(startupvalue);
    digitalWrite(escPin, LOW);
    delay(20);
  }
  //Normal operation below
  else {
    digitalWrite(escPin, HIGH);
    delayMicroseconds(speedvalue);
    digitalWrite(escPin, LOW);
    delay(20);
  }
}