Metalab Teletext Remote control code.

metalab-teletext-remote.ino

#include <IRremote.h>
#include <Keypad.h>

const byte ROWS = 4;
const byte COLS = 4;

// define the symbols of the buttons on the keypads.
const char hexaKeys[ROWS][COLS] = {
  {'1','2','3','A'},
  {'4','5','6','B'},
  {'7','8','9','C'},
  {'*','0','#','D'}

};

// 38kHz carrier frequency for the NEC protocol
const int khz = 38;

// pins are row 1-4 and then column 1-4 from left to right
// if the keypad is hold upwards.
byte rowPins[ROWS] = {20, 19, 18, 17};
byte colPins[COLS] = {1, 2, 3, 4};

Keypad customKeypad = Keypad(makeKeymap(hexaKeys), rowPins, colPins, ROWS, COLS); 
IRsend irsend;

void setup() {}

const unsigned int channel0[][21] = { 
  {900,2300, 800,250, 800,250, 800,300, 750,250, 800,250, 800,300, 700,350, 650,400, 650,400, 650},  
  {650,2550, 600,950, 600,450, 600,450, 600,500, 1050,1000, 600,450, 600,500, 550,500, 550},  
  {700,2500, 600,450, 600,450, 600,500, 550,500, 550,450, 600,450, 600,500, 550,500, 550,500, 550}  
};

const unsigned int channel1[][21] = { 
  {800,2300, 900,200, 850,200, 800,250, 800,250, 800,300, 750,250, 700,350, 700,350, 700,400, 650},  
  {650,2500, 650,400, 650,950, 600,450, 600,450, 1100,1000, 600,450, 600,450, 600,450, 600},  
  {600,2550, 650,400, 600,450, 600,450, 600,450, 600,450, 600,450, 600,450, 600,450, 600,450, 650}  
}; 

const unsigned int channel2[][21] = { 
  {850,2350, 800,250, 800,200, 850,250, 800,250, 800,250, 700,350, 700,350, 700,400, 650,400, 650},  
  {600,2550, 650,900, 1150,1000, 600,450, 1100,1000, 600,450, 550,500, 550,500, 600},  
  {650,2500, 650,450, 600,450, 600,400, 650,400, 650,450, 600,450, 550,500, 600,450, 600,450, 600}
}; 

const unsigned int channel3[][21] = {
  {850,2300, 850,200, 850,200, 850,200, 850,250, 750,300, 750,300, 650,400, 650,400, 650,400, 650},  
  {650,2500, 650,400, 650,400, 650,950, 600,450, 1100,1050, 550,500, 550,500, 550,450, 600},  
  {600,2600, 550,450, 600,450, 650,400, 650,450, 550,500, 550,500, 600,450, 600,450, 600,450, 600},  
}; 

const unsigned int channel4[][21] = { 
  {850,2350, 850,200, 850,200, 850,200, 850,200, 800,250, 700,400, 650,400, 650,400, 650,350, 700},  
  {650,2500, 650,950, 600,450, 1100,1000, 1100,1000, 600,450, 600,450, 600,500, 550},  
  {600,2550, 600,450, 600,450, 600,450, 600,450, 600,450, 600,450, 600,500, 550,500, 550,450, 600},  

}; 

const unsigned int channel5[][21] = { 
  {900,2300, 850,200, 800,300, 750,300, 750,250, 800,300, 750,300, 700,350, 650,400, 650,400, 650},  
  {650,2500, 650,450, 600,950, 1150,1000, 1050,1000, 600,500, 550,500, 550,500, 550},  
  {650,2500, 700,350, 650,450, 550,500, 550,500, 550,500, 600,450, 600,450, 600,450, 550,500, 550}  
};

const unsigned int channel6[][21] = { 
  {800,2350, 850,200, 850,200, 850,200, 850,200, 800,300, 750,300, 650,400, 650,400, 650,400, 650},  
  {650,2500, 650,950, 1150,400, 600,1000, 1100,1000, 600,450, 600,500, 550,500, 550},  
  {650,2500, 600,450, 600,450, 600,450, 600,450, 600,450, 600,500, 550,500, 550,500, 550,500, 550}  
};

const unsigned int channel7[][21] = {
  {850,2350, 850,200, 800,250, 800,250, 800,250, 800,250, 800,300, 650,400, 650,400, 650,400, 650},  
  {650,2500, 650,400, 650,450, 600,450, 550,1000, 1100,1000, 600,500, 550,500, 550,500, 550},  
  {650,2550, 600,450, 600,450, 600,450, 600,450, 600,450, 600,450, 600,500, 550,500, 550,500, 550}  
};

const unsigned int channel8[][21] = { 
  {850,2300, 850,200, 850,200, 800,250, 800,300, 750,300, 750,250, 700,400, 700,350, 700,350, 650},  
  {650,2500, 650,950, 650,400, 650,400, 1150,450, 600,1000, 550,500, 550,450, 600,500, 600},  
  {600,2550, 600,450, 600,450, 600,450, 600,450, 600,500, 550,500, 550,450, 600,450, 600,500, 600}  
};

const unsigned int channel9[][21] = { 
  {850,2300, 850,200, 850,200, 800,250, 800,300, 750,300, 750,250, 700,400, 650,400, 650,400, 650},  
  {650,2500, 650,400, 650,950, 600,450, 1100,500, 600,1000, 550,450, 600,450, 600,450, 600},  
  {650,2500, 650,400, 550,550, 550,500, 500,550, 550,500, 550,500, 550,500, 550,500, 600,450, 550},  
};

const unsigned int sw_blue[][21] = {
  {850,2300, 850,200, 850,200, 900,200, 800,250, 750,300, 750,300, 700,350, 700,350, 700,350, 700},  
  {600,2500, 700,900, 1150,450, 600,450, 600,950, 1150,1000, 550,500, 600,450, 600},  
};

const unsigned int sw_red[][21] = { 
  {900,2300, 850,200, 850,250, 750,300, 750,250, 850,250, 750,300, 700,350, 650,400, 650,400, 650},  
  {650,2550, 600,950, 1100,1000, 1150,450, 550,500, 550,1050, 550,500, 500,550, 550},  
};

const unsigned int sw_yellow[][21] = { 
  {850,2300, 850,200, 900,200, 800,250, 800,250, 750,300, 750,300, 700,350, 700,350, 700,350, 700},  
  {650,2550, 650,400, 600,450, 600,950, 1150,450, 600,450, 600,1000, 600,450, 600,450, 600},  
};

const unsigned int sw_green[][21] = { 
  {900,2300, 850,200, 800,250, 800,250, 800,300, 750,250, 800,250, 700,400, 650,400, 650,400, 650},  
  {650,2500, 650,950, 1150,450, 550,450, 600,450, 650,450, 600,950, 600,450, 600,450, 600},  
};

const unsigned int teletext[][21] = { 
  {850,2300, 850,200, 850,200, 850,250, 750,300, 750,300, 750,300, 650,400, 700,350, 700,350, 700},  
  {650,2500, 700,900, 600,450, 600,450, 650,400, 1150,450, 600,1000, 550,500, 600,450, 550},  
};

const unsigned int sw_input_next[][21] = { 
  {850,2300, 850,200, 850,200, 850,250, 800,250, 750,300, 750,300, 700,350, 700,350, 700,350, 650},  
  {650,2500, 650,950, 650,400, 1100,1000, 600,500, 550,500, 550,450, 600,450, 650,400, 650},  
};

const unsigned int sw_off[][21] = {
  {850,2300, 850,250, 800,250, 750,300, 750,300, 700,350, 700,350, 700,350, 700,350, 650,400, 650},
  {650,2550, 600,950, 1150,1000, 550,500, 550,500, 550,450, 600,500, 600,450, 600,450, 550},
};

void sendraw(const unsigned int data[][21], byte x) {
  irsend.sendRaw(data[x], sizeof(data[x]) / sizeof(data[x][0]), khz);
  delay(50);
}

void sendcode(char code) {
  Serial.print("Sending codes [");
  Serial.print(code);
  Serial.println("]");
  
  switch (code) {
  case '0':  
    for (int i = 0; i < 3; i++) {
        sendraw(channel0, i);
    }
    break; 

  case '1':
    for (int i = 0; i < 3; i++) {
        sendraw(channel1, i);
    }
    break;
    
  case '2':
    sendraw(channel2, 0);
    for (int i = 0; i < 3; i++) {
      sendraw(channel2, 1);
    }
    sendraw(channel2, 2);
    break;

  case '3':
    for (int i = 0; i < 3; i++) {
      sendraw(channel3, i);
    }
    break;  
    
  case '4':
    sendraw(channel4, 0);
    for (int i = 0; i < 3; i++) {
      sendraw(channel4, 1);
    }
    sendraw(channel4, 2);
    break;       

  case '5':  
    for (int i = 0; i < 3; i++) {
      sendraw(channel5, i);
    }
    break;       

  case '6':  
    for (int i = 0; i < 3; i++) {
      sendraw(channel6, i);
    }
    break;       

  case '7':  
    for (int i = 0; i < 3; i++) {
      sendraw(channel7, i);
    }
    break;       
                
  case '8':
    sendraw(channel8, 0);
    for (int i = 0; i < 2; i++) {
      sendraw(channel8, 1);
    }
    sendraw(channel8, 2);
    break;       
                
  case '9':  
    for (int i = 0; i < 3; i++) {
      sendraw(channel9, i);
    }
    break;       
    
  case '#':
    sendraw(sw_off, 0);
    for (int i = 0; i < 3; i++) {
      sendraw(sw_off, 1);
    }
    break; 
    
  case '*':
    sendraw(sw_input_next, 0);
    for (int i = 0; i < 2; i++) {
      sendraw(sw_input_next, 1);
    }

    for (int i = 0; i < 2; i++) {
      sendraw(teletext, i);
    }
    break; 
               
  case 'A':  
    for (int i = 0; i < 2; i++) {
      sendraw(sw_red, i);
    }
    break;     

  case 'B':
    for (int i = 0; i < 2; i++) {
      sendraw(sw_green, i);
    }
    break;  
 
  case 'C':  
    for (int i = 0; i < 2; i++) {
      sendraw(sw_yellow, i);
    }
    break;                     

  case 'D':
    for (int i = 0; i < 2; i++) {
      sendraw(sw_blue, i);
    }
    break;      
  };
}

void loop() {
  char customKey = customKeypad.getKey();
  if (customKey){
    Serial.print("Sending code: ");
    Serial.println(customKey);
    sendcode(customKey);
  }
}