Dumping Infrared Remote Control Codes

This example uses the IRreceiver class to dump commands that are received from an infrared remote control that is compatible with the Philips RC-5 protocol. Commands are dumped to the serial port. The example needs a 3-pin infrared receiver connected to D2, GND, and 5V:

The full source code for the example follows:

/* This example is placed into the public domain */

#include <IRreceiver.h>

IRreceiver ir;

static const char *systems[32] = {
    "TV",
    "TV2",
    "TXT",
    "TV_EXT",
    "LV",
    "VCR",
    "VCR2",
    "Sys7",
    "SAT",
    "VCR_EXT",
    "SAT2",
    "Sys11",
    "CD_VIDEO",
    "Sys13",
    "CD_PHOTO",
    "Sys15",
    "PREAMP",
    "RADIO",
    "REC",
    "PREAMP2",
    "CD",
    "COMBI",
    "AUDIO_SAT",
    "REC2",
    "Sys24",
    "Sys25",
    "CD_R",
    "Sys27",
    "Sys28",
    "Sys29",
    "Sys30",
    "Sys31"
};

// Selection of TV, VCR, and CD commands to assist with command identification.
// May not be correct for all system types.
static const char *commands[128] = {
    "0",
    "1",
    "2",
    "3",
    "4",
    "5",
    "6",
    "7",
    "8",
    "9",
    "123",
    "11",
    "STANDBY",
    "MUTE",
    "PREFERENCES",
    "DISPLAY_INFO",
    "INC_VOLUME",
    "DEC_VOLUME",
    "INC_BRIGHTNESS",
    "DEC_BRIGHTNESS",
    "INC_SATURATION",
    "DEC_SATURATION",
    "INC_BASS",
    "DEC_BASS",
    "INC_TREBLE",
    "DEC_TREBLE",
    "BALANCE_LEFT",
    "BALANCE_RIGHT",
    "INC_CONTRAST",
    "DEC_CONTRAST",
    "SEARCH_UP",
    "DEC_TINT",
    "CHANNEL_UP",
    "CHANNEL_DOWN",
    "CHANNEL_LAST",
    "STEREO_SELECT",
    "STEREO_SPATIAL",
    "STEREO_TOGGLE",
    "SLEEP_TIMER",
    "INC_TINT",
    "SWITCH_RF",
    "STORE",
    "TIME",
    "INC_SCAN",
    "DEC_SCAN",
    "TRAY",
    "SECONDARY_MENU",
    "CLOCK",
    "PAUSE",
    "ERASE",
    "REWIND",
    "GOTO",
    "WIND",
    "PLAY",
    "STOP",
    "RECORD",
    "EXTERNAL_1",
    "EXTERNAL_2",
    "CLEAR_MEMORY",
    "VIEW_DATA",
    "12",
    "SYSTEM_STANDBY",
    "CRISP",
    "TRANSMIT_MODE",
    "Cmd64",
    "Cmd65",
    "Cmd66",
    "Cmd67",
    "Cmd68",
    "Cmd69",
    "AUDIO_RESPONSE",
    "DIM",
    "Cmd72",
    "Cmd73",
    "Cmd74",
    "Cmd75",
    "Cmd76",
    "INC_LINEAR",
    "DEC_LINEAR",
    "SOUND_FUNCTIONS",
    "UP",
    "DOWN",
    "MENU_ON",
    "MENU_OFF",
    "AV_STATUS",
    "LEFT",
    "RIGHT",
    "OK",
    "PIP",
    "PIP_SHIFT",
    "PIP_SWAP",
    "PIP_STROBE",
    "PIP_MULTI_STROBE",
    "PIP_FREEZE_MAIN",
    "PIP_MULTI_SCAN",
    "PIP_SOURCE",
    "PIP_MOSAIC",
    "PIP_NOISE",
    "PIP_STORE",
    "PIP_PHOTO_FINISH",
    "PIP_RECALL",
    "PIP_FREEZE",
    "PIP_UP",
    "PIP_DOWN",
    "PIP_SIZE",
    "VERSION_FUNCTIONS",
    "COLOR_KEY",
    "RED",
    "GREEN",
    "YELLOW",
    "CYAN",
    "INDEX",
    "NEXT_OPTION",
    "PREVIOUS_OPTION",
    "Cmd114",
    "Cmd115",
    "Cmd116",
    "Cmd117",
    "SUBMODE",
    "OPTIONS",
    "FADE",
    "Cmd121",
    "STORE_OPEN_CLOSE",
    "CONNECT_EURO",
    "DISCONNECT_EURO",
    "Cmd125",
    "Cmd126",
    "Cmd127"
};

void setup() {
    Serial.begin(9600);
}

void loop() {
    int cmd = ir.command();
    if (cmd >= 0) {
        Serial.print("IR system=");
        Serial.print(ir.system());
        Serial.print(" (RC5_SYS_");
        Serial.print(systems[ir.system()]);
        Serial.print("), command=");
        Serial.print(cmd & 0x7F);
        Serial.print(" (RC5_");
        Serial.print(commands[cmd & 0x7F]);
        Serial.print(")");
        if (cmd & IRreceiver::AUTO_REPEAT)
            Serial.println(", auto-repeat");
        else
            Serial.println();
    }
}