int ipin = A0;
int intval =150;//High is 255 which is equals to five volts


void setup() {
  // put your setup code here, to run once:
  pinMode(ipin, OUTPUT);

}

void loop() {
  // put your main code here, to run repeatedly:
  analogWrite(ipin,intval);
  delay(1000);
  analogWrite(ipin,intval);
  delay(1000);
}