void setup() {
  // put your setup code here, to run once:
  Serial.begin(115200);
  pinMode(25,OUTPUT);
  pinMode(22,OUTPUT);
  pinMode(33,OUTPUT);
  pinMode(19,OUTPUT);
  pinMode(16, OUTPUT);
  pinMode(2, OUTPUT);
} 
void loop(){
  {
Serial.println("stop");
digitalWrite(25, HIGH);
digitalWrite(22, LOW);
digitalWrite(33, LOW);

Serial.println("go");
digitalWrite(19, HIGH);
digitalWrite(16, LOW);
digitalWrite(2, LOW);
delay(3000);

Serial.println("slow"); 
digitalWrite(25, LOW);
digitalWrite(22, HIGH);
digitalWrite(33, LOW);

Serial.println("slow1");
digitalWrite(19, LOW);
digitalWrite(16, HIGH);
digitalWrite(2, LOW);
delay(3000);

Serial.println("go1");
digitalWrite(25, LOW);
digitalWrite(22, LOW);
digitalWrite(33, HIGH);

Serial.println("stop1");
digitalWrite(19, LOW);
digitalWrite(16, LOW);
digitalWrite(2, HIGH);
delay(3000);

Serial.println("slow2");
digitalWrite(25,LOW);
digitalWrite(22,HIGH);
digitalWrite(33,LOW);

Serial.println("slow3");
digitalWrite(19, LOW);
digitalWrite(16,HIGH);
digitalWrite(2,LOW);
delay(3000);
}
}