#include <Servo.h>
#define motorPin 9 //For PWM signal
int userInput;   //for storing user input
int dutycycle;  // for storing duty cycle


void setup()
{
   Serial.begin(9600);
   pinMode(motorPin,OUTPUT);
   Serial.println("Vacuum pump pressure testing using code in which in are taking input from user\n");
   Serial.println("Choose an option :- \n");
   Serial.print("1. Stop vacuum Pump \n");
   Serial.print("2. Start vacuum Pump at 100% duty cycle\n");
   Serial.print("3. Run vacuum pump at specific duty cycle\n");
   Serial.print("Write 1,2,3 to select any one of these according to your need/choice\n");
   
}



void loop()
{
   while(true)
   {
      userInput = Serial.parseInt();// exclude newline input due to Enter
      //Serial.print("User Input: ");
     // Serial.println(userInput);
      switch(userInput)


      {  
         case 1: 
         analogWrite(motorPin,0);  
         Serial.println("Motor Stopped");  
         break;  
         
         case 2: 
         analogWrite(motorPin,254);  
         Serial.println("Motor is running at 100% duty cycle");  
         break;  
         
         case 3:  
         Serial.println("Enter Duty cycle between 0 to 255 :- ");  



         while(true)  
         {  
             dutycycle = Serial.parseInt();    
             analogWrite(motorPin, dutycycle);    
             Serial.println(dutycycle);  
         }  
         break;  


      }
   }
}