MOSFET_H_Bridge

int P_FET_Q1 = 2;
int N_FET_Q4 = 3;

int P_FET_Q3 = 8;
int N_FET_Q2 = 9;

int PWM = 0;

void setup() {
  Serial.begin(9600);
  pinMode(P_FET_Q1, OUTPUT);
  pinMode(N_FET_Q2, OUTPUT);
  pinMode(P_FET_Q3, OUTPUT);
  pinMode(N_FET_Q4, OUTPUT);
  Serial.println("STOP");
  digitalWrite(N_FET_Q2, LOW);
  digitalWrite(P_FET_Q3, LOW);
  digitalWrite(N_FET_Q4, LOW);
  digitalWrite(P_FET_Q1, LOW);
  delay(1000);
}

void loop() {
  Serial.println("CW");
  digitalWrite(P_FET_Q1, HIGH);
  digitalWrite(N_FET_Q2, LOW);
  digitalWrite(P_FET_Q3, LOW);
  digitalWrite(N_FET_Q4, HIGH);
  delay(5000);
  Serial.println("STOP");
  digitalWrite(N_FET_Q2, LOW);
  digitalWrite(P_FET_Q3, LOW);
  digitalWrite(N_FET_Q4, LOW);
  digitalWrite(P_FET_Q1, LOW);
  delay(5000);
  Serial.println("CCW");
  digitalWrite(P_FET_Q1, LOW);
  digitalWrite(N_FET_Q2, HIGH);
  digitalWrite(P_FET_Q3, HIGH);
  digitalWrite(N_FET_Q4, LOW);
  delay(5000);
  Serial.println("STOP");
  digitalWrite(N_FET_Q2, LOW);
  digitalWrite(P_FET_Q3, LOW);
  digitalWrite(N_FET_Q4, LOW);
  digitalWrite(P_FET_Q1, LOW);
  delay(5000);
}