#define DIN_PIN 4
#define CS_PIN  5
#define CLK_PIN 6
#define CLK_KY 2
#define DT_KY 3
#define SW_KY 7

void setup() {
  pinMode(DIN_PIN, OUTPUT);
  pinMode(CS_PIN, OUTPUT);
  pinMode(CLK_PIN, OUTPUT);
  pinMode(CLK_KY, INPUT_PULLUP);
  pinMode(DT_KY, INPUT_PULLUP);
  pinMode(SW_KY, INPUT_PULLUP);
}

void loop() {
  // put your main code here, to run repeatedly:

}