//define pins
#define inputCLK 2
#define inputDT 3

void setup() {
  //define pins
pinMode (inputCLK,INPUT);
pinMode (inputDT,INPUT);
Serial.begin(9600);
}

void loop() {
Serial.print("DT:  ");
Serial.print(digitalRead(inputDT));
Serial.print("  CLK: ");
Serial.println(digitalRead(inputCLK));
}