#include <dummy.h>

  #include <Wire.h>
  /*
  This program is to control a heater fan with a 4 speed selector switch and a relay for the full speed setting.
  */
 
  int Spd_0_in=4; //pin for lowest speed selection
  int Spd_2_in=5; //pin for 2nd speed selection
  int Spd_3_in=12; //pin for 3rd speed selection
  int Spd_4_in=13; //pin for highest speed selection
  int Spd_5_in=14;
  int PWM_out=32;  // PWM out for fan control
  int Full_spd=33; // relay output for full speed fan
  int Spd_val;
 const int Spd_val_3=225; //these are the values to be written to the pwm to generate speeds
 const int Spd_val_2=180;
 //const int Spd_val_0=125;
 const int Spd_val_0=32;
 const int Spd_val_4=250;
 
  void setup() { 
    pinMode(4,INPUT);
    pinMode(5,INPUT);
    pinMode(12,INPUT);
    pinMode(13,INPUT);
    pinMode(14,INPUT);
    pinMode (33,OUTPUT);
   // pinMode (33,OUTPUT);
   ledcAttachChannel(32,5000,8,0);
   //ledcAttachPin(33,0);
  // put your setup code here, to run once:
 Wire.begin();
  Serial.begin(115200);
 // Serial.println("exiting setup");
 
}

void loop(){
  // put your main code here, to run repeatedly;
 bool High_spd_selected=digitalRead(Spd_5_in);
 bool spd_4_selected=digitalRead(Spd_4_in);
 bool spd_3_selected=digitalRead(Spd_3_in);
 bool spd_2_selected=digitalRead(Spd_2_in);
 bool spd_1_selected=digitalRead(Spd_0_in);
Spd_val=0;
//Serial.println("1,2,3,4,5");
//Serial.println(digitalRead(Spd_0_in));
//Serial.println(digitalRead(Spd_2_in));
//Serial.println(digitalRead(Spd_3_in));
//Serial.println(digitalRead(Spd_4_in));
//Serial.println(digitalRead(Spd_5_in));

 if (High_spd_selected){
  digitalWrite(Full_spd,HIGH);
  // Serial.println("High spd_selected");
  // Serial.println(High_spd_selected);
   //Serial.println(spd_4_selected);
 }
  else {
  	digitalWrite(Full_spd,LOW);
}

if (spd_4_selected and !(High_spd_selected)){
  Spd_val = Spd_val_4;
 // Serial.println("speed 4");
}

if (spd_3_selected and !((spd_4_selected)or (High_spd_selected))){
  Spd_val = Spd_val_3;
 // Serial.println("speed 3");
}
if (spd_2_selected and !((spd_3_selected)or (spd_4_selected)or(High_spd_selected))){
  Spd_val = Spd_val_2;
  //Serial.println("Speed 2");
}

if (spd_1_selected and !((spd_2_selected)or(spd_3_selected)or(spd_4_selected)or (High_spd_selected))){
  Spd_val = Spd_val_0;
  //Serial.println("Speed 1");
}

ledcWriteChannel(0,Spd_val);
//analogWrite (PWM_out, Spd_val);
Serial.print("Spd_val=");
Serial.println(Spd_val);
//Serial.println(High_spd_selected);
Serial.print(spd_1_selected);Serial.print(spd_2_selected);Serial.print(spd_3_selected);Serial.println(spd_4_selected);
}