byte transistor0basis = 10;
byte transistor1basis = 9;

bool button0on = false;
bool button0read = false;
bool switch0 = false;
bool start0 = false;

unsigned long button0millis = 0;
unsigned long motor0millis = 0;
unsigned long serial0millis = 0;
unsigned long motor0timer = 0;

int speed0 = 0;

void setup() {
pinMode(transistor0basis, OUTPUT);
pinMode(transistor1basis, OUTPUT);
pinMode(7, INPUT_PULLUP);
pinMode(6, INPUT_PULLUP);
Serial.begin(9600);

}

void loop() {

button0read = digitalRead(7);
start0 = digitalRead(6);
motor0timer =  millis() - motor0millis;


if (millis() - serial0millis > 250)
{
  Serial.print(" Switch == ");
  Serial.println(switch0);

  Serial.print("Drehszahl == ");
  Serial.print(speed0);

  Serial.print(" <><>");

  Serial.print(" Start == ");
  Serial.print(start0);

  Serial.print(" <><>");

  serial0millis = millis();
}

if (button0read == true)
{
 button0millis = millis();
}

if (button0read == false && button0on == false && millis() - button0millis > 20)
{
  button0on = true;
}

if (button0read == true && button0on == true)
{
  button0on = false;
  switch0 = !switch0;
  motor0millis = millis();
}

if (switch0)
{
  digitalWrite(transistor1basis, HIGH);
  
  if (start0 == false && speed0 < 255 && motor0timer > 5)
  {
      speed0 +=5;
      motor0millis = millis();
  }
  else if (speed0 == 255 && start0 == false)
  {
    speed0 = 255;
  }
  else
  {
    if (speed0 > 0 && motor0timer > 5) 
   {
     speed0-=5;
     motor0millis = millis();
   }
  }

}
else
{
  digitalWrite(transistor1basis, LOW);
  digitalWrite(transistor0basis, LOW);
  speed0 = 0;
}

analogWrite(transistor0basis, speed0);



}