Saturday, March 3, 2012

Teensy IR PC Remote Keyboard & Mouse / Youtube playlist player

By: Shawn McCombs


This project was a lot of fun to program. It good practice, and has a functional purpose. If you want to re purpose it feel free.



Here is the how to, for the program HOTKEYS and how to setup the VOL UP DOWN hotkeys.

You will also need the IRremote library.

To get your codes from your remote use the IRDemo sketch that comes with the library. Just make sure to add the 0x to the beginning of each code you get.






/*
Project: Teensy IR Keyboard
Mar 1 - Mar 2 12
-Shawn McCombs
 */

#include <IRremote.h>
#include <IRremoteInt.h>

int RECV_PIN = 10;  
int ledPin = 11;

int todo; 
int opened; 
int steps = 1;
int direct;
int place;
int mode;
int screen;

long previousMillis;
long interval = 100;

IRrecv irrecv(RECV_PIN);
decode_results results;

String digit, doneit;

String channels[] = {
  "zero",
  "http://www.youtube.com/watch?v=G17x99Sh424",
  "http://www.youtube.com/watch?v=EZbrSm5psT4",
  "http://www.youtube.com/watch?v=jUkoL9RE72o",
  "http://www.youtube.com/watch?v=7q2bNqe0Xyk",
  "http://www.youtube.com/watch?v=pMPrxg1bSPE",
  "http://www.youtube.com/watch?v=J4Mb5Yt_ylk",
  "http://www.youtube.com/watch?v=Zcps2fJKuAI",
  "http://www.youtube.com/watch?v=-SIgu2j4Nzs",
  "http://www.youtube.com/watch?v=mdJDPepGOAM",
  "http://www.shoutcast.com/shoutcast_popup_player?station_id=1254140&play_status=1&stn=Chillout%20Dreams%20-%20DIGITALLY%20IMPORTED%20-%20relax...", 
  "http://www.youtube.com/watch?v=bX5uSguogQM"
};

void setup()
{ 
  irrecv.enableIRIn(); 
  pinMode(ledPin, OUTPUT);  
  digitalWrite(ledPin, HIGH);
  
  digit = String("");
  doneit = String("");
}

void loop() {
  if (irrecv.decode(&results)) {
    if(results.value == 0x210700FF) {
      digit += 0;
    } else if (results.value == 0x2107807F) {
      digit += 1;
    } else if (results.value == 0x210740BF) {
      digit += 2;
    } else if (results.value == 0x2107C03F) {
      digit += 3;
    } else if (results.value == 0x210720DF) {
      digit += 4;
    } else if (results.value == 0x2107A05F) {
      digit += 5;
    } else if (results.value == 0x2107609F) {
      digit += 6;
    } else if (results.value == 0x2107E01F) {
      digit += 7;
    } else if (results.value == 0x210710EF) {
      digit += 8;
    } else if (results.value == 0x2107906F) {
      digit += 9;
    } else if (results.value == 0x2107EA15) {
      todo = digit.toInt();
      if (todo > 0 && todo < 12) {
        place = todo;
        doneit = channels[todo];
        doit(); 
        digit = "";
        todo = 0;
      } else {
        error();
      }
    } else if (results.value == 0x210706F9) {
      volup();
      direct = 5;
    } else if (results.value == 0x21078679) {
      voldown();
      direct = 6;
    } else if (results.value == 0x210726D9) {
      mute();
      direct = 0;
    } else if (results.value == 0x21071EE1) {
      refresh();
      direct = 0;
    } else if (results.value == 0x2107D926) {
      closewin();
      opened = 0;
      direct = 0;
    } else if (results.value == 0x210709F6) {
      if(screen == 0) {
        screen = 1;
      }
      screenswitch();
      direct = 0;
    } else if (results.value == 0x2107CE31) {
      steps = 1;
      up();
      direct = 1;
    } else if (results.value == 0x21076E91) {
      if(screen == 1) {
        Keyboard.set_key1(KEY_LEFT);
        Keyboard.send_now();
        Keyboard.set_key1(0);
        Keyboard.send_now();
      } else {
        steps = 1;
        left();
        direct = 2;
      }
    } else if (results.value == 0x21072ED1) {
      steps = 1;
      down();
      direct = 3;
    } else if (results.value == 0x2107AE51) {
      if(screen == 1) {
        Keyboard.set_key1(KEY_RIGHT);
        Keyboard.send_now();
        Keyboard.set_key1(0);
        Keyboard.send_now();
      } else {
        steps = 1;
        right();
        direct = 4;
      }
    } else if (results.value == 0x2107EE11) {
      if(screen == 1) {
        screen = 0;
        screenswitch();
      } else {
        direct = 0;
        leftmouse();
      }
    } else if (results.value == 0x21070EF1) {
      direct = 0;
      rightmouse();
    } else if (results.value == 0x21070AF5) {
      place++;
      if (place > 11) {
        place = 11;
        error();
      } else {
        doneit = channels[place];
        doit(); 
      }
    } else if (results.value == 0x21078A75) {
      place = place - 1;
      if (place < 0) {
        place = 0;
        error();
      } else if (place > 0) {
      doneit = channels[place];
      doit(); 
      } else {
        if (opened == 1) {
          closewin();
        }
      }
    }
    
    if(direct > 0 && results.value == 0xFFFFFFFF) {
      if(direct == 1) {
        up();
      } else if (direct == 2) {
        left();
      } else if (direct == 3) {
        down();
      } else if (direct == 4) {
        right();
      } else if (direct == 5) {
        volup();
      } else if (direct == 6) {
        voldown();
      } 
     
      
      unsigned long currentMillis = millis();

      if(currentMillis - previousMillis > interval) {
        previousMillis = currentMillis;   

        steps++;
        
        if (steps > 19) {
          steps = 20;
        }
      }
    }    
    irrecv.resume();
  }
}

void doit()  {
  if (opened == 0) {
    opened = 1;
  } else {
    closewin();
  }
  
  Keyboard.set_modifier(MODIFIERKEY_GUI);
  Keyboard.set_key1(KEY_R);
  Keyboard.send_now();
  Keyboard.set_modifier(0);
  Keyboard.set_key1(0);
  Keyboard.send_now();
  delay(100);
  delay(100);
  Keyboard.print(doneit); 
  delay(100);
  Keyboard.set_key1(KEY_ENTER);
  Keyboard.send_now();
  Keyboard.set_key1(0);
  Keyboard.send_now();
  
  doneit = "";
}

void error()  {
  digitalWrite(ledPin, LOW);
  delay(400);
  digitalWrite(ledPin, HIGH);
  delay(400);
  digitalWrite(ledPin, LOW);
  delay(400);
  digitalWrite(ledPin, HIGH);
  delay(400);
  digitalWrite(ledPin, LOW);
  delay(400);
  digitalWrite(ledPin, HIGH);
  delay(400);
  digitalWrite(ledPin, LOW);
  delay(400);
  digitalWrite(ledPin, HIGH);
}

void refresh()  {
  Keyboard.set_key1(KEY_F5);
  Keyboard.send_now();
  Keyboard.set_key1(0);
  Keyboard.send_now();
}

void closewin()  {
  Keyboard.set_modifier(MODIFIERKEY_ALT);
  Keyboard.set_key1(KEY_F4);
  Keyboard.send_now();
  Keyboard.set_modifier(0);
  Keyboard.set_key1(0);
  Keyboard.send_now();
}

void volup()  {
  Keyboard.set_modifier(MODIFIERKEY_CTRL | MODIFIERKEY_ALT);
  Keyboard.set_key1(KEY_UP);
  Keyboard.send_now();
  Keyboard.set_modifier(0);
  Keyboard.set_key1(0);
  Keyboard.send_now();
}

void voldown()  {
  Keyboard.set_modifier(MODIFIERKEY_CTRL | MODIFIERKEY_ALT);
  Keyboard.set_key1(KEY_DOWN);
  Keyboard.send_now();
  Keyboard.set_modifier(0);
  Keyboard.set_key1(0);
  Keyboard.send_now();
}

void mute()  {
  Keyboard.set_modifier(MODIFIERKEY_CTRL | MODIFIERKEY_ALT);
  Keyboard.set_key1(KEY_PERIOD);
  Keyboard.send_now();
  Keyboard.set_modifier(0);
  Keyboard.set_key1(0);
  Keyboard.send_now();
}

void up()  {
  Mouse.move(0, -steps);
}

void left()  {
  Mouse.move(-steps, 0);
}

void down()  {
  Mouse.move(0, steps);
}

void right()  {
  Mouse.move(steps, 0);
}

void leftmouse()  {
  Mouse.click();
}

void rightmouse()  {
  Mouse.set_buttons(0, 0, 1);
  Mouse.set_buttons(0, 0, 0);
}

void screenswitch()  {
  if (screen == 1) {
    Keyboard.set_modifier(MODIFIERKEY_ALT);
    Keyboard.set_key1(KEY_TAB);
    Keyboard.send_now();
    Keyboard.set_key1(0);
    Keyboard.send_now();
  } else {
    Keyboard.set_modifier(0);
    Keyboard.send_now();
  }
}
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18 comments:

  1. Nice work but you should use switch command. I did the same thing with C programming. I'll share code if you are interested.

    tryg.

    trygvetmadsen@yahoo.com

    ReplyDelete

  2. This comment has been removed by a blog administrator.

    ReplyDelete
    Replies

    1. Hi... I forgot what I wrote, I hope it wasn't out of line.

      Please tell me why it was removed.

      trygvetmadsen@yahoo.com

      Delete

  3. nice work, but in my opinion you can do this much easier:

    a very easy way: receive the ir-code with the arduino, but don't "hard-encode" the received signal, just pass it to the serial output. now use "eventghost", an open source automation tool and the serial plugin to receive the input and tell the tool what to do (mouse up, press space, control xbmc or whatever you want). with eventghost you are completely independent from received codes ect - its much more flexible then doing in a sketch for arduino...)

    i just hard endoded one button of my remote: for turning the pc on via arduino...

    hope this helps somebody, if there are questions: randaley@gmail.com

    ReplyDelete

  4. Yeah, that is a way to do it, but I don't really like using software as a add-on. I want independent devices. The only reason I used hotkeys is because I couldn't figure out how to add the media key keystrokes to the teensy library. Even without hotkeys this will work, you just can't control the volume.

    Also I know how to use switches. I just didn't want to because of the mouse keys have to be based on multiple instances that constantly change. Switches could do that, but I found IF statements more easier for me, and it works without much coding length difference (That I know of).

    ReplyDelete

  5. Did you have to do anything special to initialize the Teensy for both as a mouse device and a keyboard device as the same time? I'm interested in making a mouse with some hotkeys but noticed that the code library on the Teensy site has just slightly different usb_init functions.

    ReplyDelete

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  9. @Adam
    You have to select the "USB Type" in the Arduino Tools menu, mine is set to "Serial + Mouse + Keyboard + Joystick"

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