#include <LiquidCrystal_I2C.h>
#include <Wire.h>
LiquidCrystal_I2C lcd(0x27, 16, 2);

const int swOn = 4;
const int swOff = 5;

const String titel = "Motorsteuerung";
const String name = "Safa";
const String motorOn = "Motor ein       ";
const String motorOff = "Motor aus      ";

const int ledRed = 6;
const int ledBlue = 7;

const int rgbRed = 9;
const int rgbGreen = 10;
const int rgbBlue = 11;

const int potiPin = A0;
const int motorPin=3; 

int adcVal = 0;  // Wert für Umwandlung von 0-1023
int pwmVal=0;    // Wert für PWM 0-255
int prozent=0;   // prozentwert 





void setup()
{
  pinMode(swOn, INPUT_PULLUP);
  pinMode(swOff, INPUT_PULLUP);
  pinMode(ledRed, OUTPUT);
  pinMode(ledBlue, OUTPUT);
  pinMode (rgbRed, OUTPUT);
  pinMode (rgbGreen, OUTPUT);
  pinMode (rgbBlue, OUTPUT);

  digitalWrite (rgbGreen, 1); // rgb grün off
  digitalWrite (rgbRed, 1);  // rgb rot off
  digitalWrite (rgbBlue, 1); // rgb blau off

  lcd.init();
  lcd.backlight();
  lcd.setCursor(1, 0);
  lcd.print(titel);
  lcd.setCursor(6, 1);
  lcd.print(name);
  delay(5000);
  lcd.clear();

}

void loop()
{
  if (digitalRead (swOn) == 0) //Motor eingeschaltet
  {
    digitalWrite (ledRed, 1);  // rote led on
    digitalWrite (ledBlue, 0); //  blaue led off
    lcd.setCursor(0, 0);
    lcd.print(motorOn);

    adcVal = analogRead (potiPin); //adcwert zeigen
    lcd.setCursor(0, 1);
    lcd.print(adcVal);
    lcd.print("  ") ;

    pwmVal=map(adcVal,0,1023,0,255); //PWM signal berechnen 
    lcd.setCursor(6, 1);
    lcd.print(pwmVal);
    lcd.print(" ") ;

    prozent=map(pwmVal,0,255,0,100); // Prozent berechnen 
    lcd.print(prozent);
    lcd.print("%");
    lcd.print("   ");

    analogWrite (motorPin,pwmVal);

    if  ((prozent>0) && (prozent<50))
    setled (0,0,1); 

    if ((prozent>50)&& (prozent<=70))
    setled (0,1,0);

    if ((prozent>70)&& (prozent=100))
    setled(1,0,0); 



  }
  else                       //Motor ausgeschaltet
  {
    digitalWrite (ledRed, 0);  // rote led off
    digitalWrite (ledBlue, 1); // blaue led on
    lcd.setCursor(0, 0);
    lcd.print(motorOff);
    lcd.setCursor(0, 1);
    lcd.print("      ");
    setled(0,0,0);
    analogWrite (motorPin,0);
  }
}
void setled (int valrgbR,int valrgbG, int valrgbB)
{
  digitalWrite (rgbRed, !valrgbR); 
  digitalWrite (rgbGreen, !valrgbG);
  digitalWrite (rgbBlue, !valrgbB);
  
}