IR Remote Control for Presentation PC

1// Remote Control For Presentation PC
2// Module Pro Micro (AT MEGA  32U4) 16MHz
3// NEC protocol only
4
5// Author: Piotr Sylwesiuk
6// https://plus.google.com/109581799567307387329
7
8//  IR Remote library from https://github.com/z3t0/Arduino-IRremote
9// HID library  from https://github.com/NicoHood/HID
10
11#include <HID-Project.h>
12#include  <HID-Settings.h>
13
14#include <boarddefs.h>
15#include <IRremote.h>
16#include  <IRremoteInt.h>
17
18uint8_t ir_code();
19
20// Infrared remote control
21#define  IR_ADDR 0x00FF // Address
22// used keys
23#define IR_KEY_3             0xE2  //  Vol+
24#define IR_KEY_6             0xC2  // Vol-
25#define IR_KEY_9             0x90  // Mute
26#define IR_KEY_0             0x98  // Play/Pause
27#define IR_KEY_STAR          0x68  // ESC
28#define IR_KEY_HASH          0xB0  // Shift F5
29#define  IR_KEY_UP_ARROW      0x18  // Arrow Up
30#define IR_KEY_DOWN_ARROW    0x4A  //  Arrow Down
31#define IR_KEY_RIGHT_ARROW   0x5A  // Arrow Right
32#define IR_KEY_LEFT_ARROW    0x10  // Arrow Left
33#define IR_KEY_OK            0x38  // F5
34
35// IR  Receiver
36#define IR_RECEIVER_PIN A2
37
38IRrecv irrecv(IR_RECEIVER_PIN);
39
40void  setup() {
41  // put your setup code here, to run once:
42
43  // Initializing  the infrared receiver
44  irrecv.enableIRIn();
45  irrecv.blink13(false);
46
47  // Initializing control over the keyboard
48  Keyboard.begin();
49  Consumer.begin();
50}
51
52void  loop() {
53  // put your main code here, to run repeatedly:
54  
55  switch(ir_code()){
56    case IR_KEY_UP_ARROW    : Keyboard.write(KEY_UP_ARROW); break;
57    case IR_KEY_DOWN_ARROW  : Keyboard.write(KEY_DOWN_ARROW); break;
58    case IR_KEY_RIGHT_ARROW : Keyboard.write(KEY_RIGHT_ARROW);  break;
59    case IR_KEY_LEFT_ARROW  : Keyboard.write(KEY_LEFT_ARROW); break;
60    case IR_KEY_STAR        : Keyboard.write(KEY_ESC); break;
61
62    // Shift  F5
63    case IR_KEY_HASH        : Keyboard.press(KEY_LEFT_SHIFT);
64                              Keyboard.write(KEY_F5);
65                              Keyboard.release(KEY_LEFT_SHIFT); break;
66                               
67    case IR_KEY_OK          : Keyboard.write(KEY_F5); break;
68    case IR_KEY_9           : Consumer.write(MEDIA_VOLUME_MUTE); break;
69    case IR_KEY_3           :  Consumer.write(MEDIA_VOLUME_UP); break;
70    case IR_KEY_6           : Consumer.write(MEDIA_VOLUME_DOWN);  break;
71    case IR_KEY_0           : Consumer.write(MEDIA_PLAY_PAUSE); break;
72  }
73}
74
75// ----------------------------------------------------------
76uint8_t  ir_code() {
77  decode_results irResults; // Here we store the results
78  uint16_t  irCode = 0;
79  static uint8_t irTmp = 0;
80
81  if (irrecv.decode(&irResults))  {
82    if ((irResults.decode_type == NEC) && (!irResults.overflow)) {
83      if  ((irResults.bits == 32) && (((irResults.value & 0xffff0000)>>16) == IR_ADDR)) {
84        irCode = irResults.value & 0x0000ffff;
85        irTmp = (~(irCode & 0x00ff))&  0x00ff;
86        irCode >>= 8;
87        if (!(irCode == irTmp)) irCode = irTmp  = 0;
88        
89             // Recognition of the code repetition of the pressed  remote control button.
90      } else if ((irResults.bits == 0) && (irResults.value  == 0xffffffff) && (irTmp != 0)) {
91        
92          // Autorepeat for Vol+  and Vol- (IR_KEY_3 and IR_KEY_6)
93          if((irTmp==IR_KEY_3)||(irTmp==IR_KEY_6))  irCode=irTmp; else irCode = 0xff; 
94          
95      } else irCode = irTmp  = 0;
96    } else irCode = irTmp = 0;
97    irrecv.resume(); // Prepare for the  next value
98    return (irCode);
99  } else {
100    irCode = 0;
101    return  (irCode);
102  }
103}
104
105
106