int SWpin1= 3;
int SWpin2= 4;
int btn1pin = 5;
int btn2pin = 6;

enum TrellisMode {
  deck0,
  pad0,
  deck1,
  pad1
};
TrellisMode trellis1_activeMode = deck0;
TrellisMode trellis2_activeMode = deck0;

uint8_t leftDeck = 0;
uint8_t leftPad;
uint8_t offset_Trellis1 = 0;

uint8_t rightDeck = 0;
uint8_t rightPad;
uint8_t offset_Trellis2 = 0;

void setup() {
  pinMode(SWpin1, INPUT_PULLUP);
  pinMode(SWpin2, INPUT_PULLUP);
  pinMode(btn1pin, INPUT_PULLUP);
  pinMode(btn2pin, INPUT_PULLUP);
}

void loop() {
  leftPad = digitalRead(SWpin1); 
  rightPad = digitalRead(SWpin2); 
}


void printLeftLCDmode(){
 switch(trellis1_activeMode){
  case deck0: Serial.println("DECK A");
  break;
  case pad0: Serial.println("PAD A");
  break;
  case deck1: Serial.println("DECK C");
  break;
  case pad1: Serial.println("PAD A");
  break;
  default:
  return;
 }
}


void printRightLCDmode(){
 switch(trellis2_activeMode){
  case deck0: Serial.println("DECK B");
  break;
  case pad0: Serial.println("PAD B");
  break;
  case deck1: Serial.println("DECK D");
  break;
  case pad1: Serial.println("PAD D");
  break;
  default:
  return;
 }
}