//Auto_Band (600W)  09/07/2019

#define A 10
#define B 9
#define C 8
#define KeyOut 7
#define In80 2
#define In40 3
#define In20 4
#define InHI 5
#define KeyIn 6
#define Pulse 12
int filter80;
int filter40;
int filter20;
int filterHI;
int key = LOW;
void setup() {
  // put your setup code here, to run once:
  pinMode(A, OUTPUT);
  pinMode(B, OUTPUT);
  pinMode(C, OUTPUT);
  pinMode(KeyOut, OUTPUT);
  pinMode(In80, INPUT_PULLUP);
  pinMode(In40, INPUT_PULLUP);
  pinMode(In20, INPUT_PULLUP);
  pinMode(InHI, INPUT_PULLUP);
  pinMode(KeyIn, INPUT_PULLUP);
}

void loop()
{
   filter80 = digitalRead(In80);
   filter40 = digitalRead(In40);
   filter20 = digitalRead(In20);
   filterHI = digitalRead (InHI);
   key = digitalRead (KeyIn);
   if (filter80 == LOW) {Band80();} //80m filter
   else if (filter40 == LOW) {Band30_40();} //40m filter 
   else if (filter20 == LOW) {Band20();} //20m filter
   else if (filterHI == LOW) {Band17_15_12_10();} //17m,15m,12m,10m filter
   key = !key;
   digitalWrite(KeyOut, key);
}

//D5 = Amp connector pin 2; D4 = connector pin 4; D3 = connector pin 8; D2 = connector pin 1

void Band17_15_12_10()
  {
    digitalWrite(A, HIGH);
    digitalWrite(B, HIGH);
    digitalWrite(C, HIGH);
  } 


void Band20()
  {
    digitalWrite(A, LOW);
    digitalWrite(B, HIGH);
    digitalWrite(C, HIGH);
  }

 void Band30_40()
  {
    digitalWrite(A, LOW);
    digitalWrite(B, LOW);
    digitalWrite(C, HIGH);
  }
 
void Band80()
  {
    digitalWrite(A, LOW);
    digitalWrite(B, HIGH);
    digitalWrite(C, LOW);
  }