#include <LedControl.h>

int Green = A10;


int DIN = 10;
int CS =  9;
int CLK = 8;
LedControl lc = LedControl(DIN, CLK, CS, 0);

void setup() {
  
  pinMode(Green, INPUT_PULLUP);
 
  
    
 lc.shutdown(0,false);       
 lc.setIntensity(0,15); 
}

void loop() {

  if (digitalRead(Green) == 0){
    smile();
  }
  
  else {
    sad();
  }
    
}


void smile()
{
  byte SMILE[8] = {0x3C, 0x42, 0xA5, 0x81, 0xA5, 0x99, 0x42, 0x3C};
  for (int i = 0; i < 8; i++) {
    lc.setRow(0, i, SMILE[i]);
  }
}

void sad()
{
  byte SAD[8] = {0x3C, 0x42, 0xA5, 0x81, 0x99, 0xA5, 0x42, 0x3C};
  for (int i = 0; i < 8; i++) {
    lc.setRow(0, i, SAD[i]);
  }
}