#include <LedControl.h>

// Pin definitions for the LED matrix
int DIN = 12;
int CS =  11;
int CLK = 10;
LedControl lc = LedControl(DIN, CLK, CS, 0); // Create LedControl object

// Pin for voice detection
int voicePin = A0;

void setup() {
  lc.shutdown(0, false);       // Wake up displays
  lc.setIntensity(0, 15);      // Set brightness level (0 to 15)
  lc.clearDisplay(0);          // Clear display register
  pinMode(voicePin, INPUT);    // Set voicePin as input
}

void loop() {
  // Check if there is voice input
  bool voiceDetected = (digitalRead(voicePin) == HIGH); // Change this if using analog or different logic
  
  if (voiceDetected) {
    // Display TALK1 and TALK2 if voice is detected
    displayTalk();
  } else {
    // Display FACE if no voice is detected
    displayFace();
  }
}

void displayFace() {
  delay(1000);
  tone(7, 262, 250);
  
  // Pattern for FACE
  byte FACE[8] = {  
    B00111100,
    B01000010,
    B10100101,
    B10000001,
    B10100101,
    B10011001,
    B01000010,
    B00111100
  };
  printByte(FACE);
  delay(1000);
}

void displayTalk() {
  delay(1000);
  
  // Pattern for TALK1
  byte TALK1[8] = {  
    B00111100,
    B01000010,
    B10100101,
    B10000001,
    B10011001,
    B10100101,
    B01011010,
    B00111100
  };
  printByte(TALK1);
  delay(1000);
  
  // Pattern for TALK2
  byte TALK2[8] = {
    B00111100,
    B01000010,
    B10100101,
    B10000001,
    B10000001,
    B10111101,
    B01000010,
    B00111100
  };
  printByte(TALK2);
  delay(1000);
}

void printByte(byte character[]) {
  for (int i = 0; i < 8; i++) {
    lc.setRow(0, i, character[i]); // Set each row of the display
  }
}