Revision 0:355a854280cd, committed 2018-06-19

Comitter:

adaphoto

Date:

Tue Jun 19 12:24:24 2018 +0000

Commit message:

??????

Changed in this revision

diff -r 000000000000 -r 355a854280cd ReceiverIR.cpp
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/ReceiverIR.cpp	Tue Jun 19 12:24:24 2018 +0000
@@ -0,0 +1,330 @@
+/**
+ * IR receiver (Version 0.0.4)
+ *
+ * Copyright (C) 2010 Shinichiro Nakamura (CuBeatSystems)
+ * http://shinta.main.jp/
+ */
+
+#include "ReceiverIR.h"
+
+#define LOCK()
+#define UNLOCK()
+
+#define InRange(x,y)   ((((y) * 0.7) < (x)) && ((x) < ((y) * 1.3)))
+
+/**
+ * Constructor.
+ *
+ * @param rxpin Pin for receive IR signal.
+ */
+ReceiverIR::ReceiverIR(PinName rxpin) : evt(rxpin) {
+    init_state();
+    evt.fall(this, &ReceiverIR::isr_fall);
+    evt.rise(this, &ReceiverIR::isr_rise);
+    evt.mode(PullUp);
+    ticker.attach_us(this, &ReceiverIR::isr_wdt, 10 * 1000);
+}
+
+/**
+ * Destructor.
+ */
+ReceiverIR::~ReceiverIR() {
+}
+
+/**
+ * Get state.
+ *
+ * @return Current state.
+ */
+ReceiverIR::State ReceiverIR::getState() {
+    LOCK();
+    State s = work.state;
+    UNLOCK();
+    return s;
+}
+
+/**
+ * Get data.
+ *
+ * @param format Pointer to format.
+ * @param buf Buffer of a data.
+ * @param bitlength Bit length of the buffer.
+ *
+ * @return Data bit length.
+ */
+int ReceiverIR::getData(RemoteIR::Format *format, uint8_t *buf, int bitlength) {
+    LOCK();
+
+    if (bitlength < data.bitcount) {
+        UNLOCK();
+        return -1;
+    }
+
+    const int nbits = data.bitcount;
+    const int nbytes = data.bitcount / 8 + (((data.bitcount % 8) != 0) ? 1 : 0);
+    *format = data.format;
+    for (int i = 0; i < nbytes; i++) {
+        buf[i] = data.buffer[i];
+    }
+
+    init_state();
+
+    UNLOCK();
+    return nbits;
+}
+
+void ReceiverIR::init_state(void) {
+    work.c1 = -1;
+    work.c2 = -1;
+    work.c3 = -1;
+    work.d1 = -1;
+    work.d2 = -1;
+    work.state = Idle;
+    data.format = RemoteIR::UNKNOWN;
+    data.bitcount = 0;
+    timer.stop();
+    timer.reset();
+    for (int i = 0; i < sizeof(data.buffer); i++) {
+        data.buffer[i] = 0;
+    }
+}
+
+void ReceiverIR::isr_wdt(void) {
+    LOCK();
+    static int cnt = 0;
+    if ((Idle != work.state) || ((0 <= work.c1) || (0 <= work.c2) || (0 <= work.c3) || (0 <= work.d1) || (0 <= work.d2))) {
+        cnt++;
+        if (cnt > 50) {
+#if 0
+            printf("# WDT [c1=%d, c2=%d, c3=%d, d1=%d, d2=%d, state=%d, format=%d, bitcount=%d]\n",
+                   work.c1,
+                   work.c2,
+                   work.c3,
+                   work.d1,
+                   work.d2,
+                   work.state,
+                   data.format,
+                   data.bitcount);
+#endif
+            init_state();
+            cnt = 0;
+        }
+    } else {
+        cnt = 0;
+    }
+    UNLOCK();
+}
+
+void ReceiverIR::isr_fall(void) {
+    LOCK();
+    switch (work.state) {
+        case Idle:
+            if (work.c1 < 0) {
+                timer.start();
+                work.c1 = timer.read_us();
+            } else {
+                work.c3 = timer.read_us();
+                int a = work.c2 - work.c1;
+                int b = work.c3 - work.c2;
+                if (InRange(a, RemoteIR::TUS_NEC * 16) && InRange(b, RemoteIR::TUS_NEC * 8)) {
+                    /*
+                     * NEC.
+                     */
+                    data.format = RemoteIR::NEC;
+                    work.state = Receiving;
+                    data.bitcount = 0;
+                } else if (InRange(a, RemoteIR::TUS_NEC * 16) && InRange(b, RemoteIR::TUS_NEC * 4)) {
+                    /*
+                     * NEC Repeat.
+                     */
+                    data.format = RemoteIR::NEC_REPEAT;
+                    work.state = Received;
+                    data.bitcount = 0;
+                    work.c1 = -1;
+                    work.c2 = -1;
+                    work.c3 = -1;
+                    work.d1 = -1;
+                    work.d2 = -1;
+                } else if (InRange(a, RemoteIR::TUS_AEHA * 8) && InRange(b, RemoteIR::TUS_AEHA * 4)) {
+                    /*
+                     * AEHA.
+                     */
+                    data.format = RemoteIR::AEHA;
+                    work.state = Receiving;
+                    data.bitcount = 0;
+                } else if (InRange(a, RemoteIR::TUS_AEHA * 8) && InRange(b, RemoteIR::TUS_AEHA * 8)) {
+                    /*
+                     * AEHA Repeat.
+                     */
+                    data.format = RemoteIR::AEHA_REPEAT;
+                    work.state = Received;
+                    data.bitcount = 0;
+                    work.c1 = -1;
+                    work.c2 = -1;
+                    work.c3 = -1;
+                    work.d1 = -1;
+                    work.d2 = -1;
+                } else {
+                    init_state();
+                }
+            }
+            break;
+        case Receiving:
+            if (RemoteIR::NEC == data.format) {
+                work.d2 = timer.read_us();
+                int a = work.d2 - work.d1;
+                if (InRange(a, RemoteIR::TUS_NEC * 3)) {
+                    data.buffer[data.bitcount / 8] |= (1 << (data.bitcount % 8));
+                } else if (InRange(a, RemoteIR::TUS_NEC * 1)) {
+                    data.buffer[data.bitcount / 8] &= ~(1 << (data.bitcount % 8));
+                }
+                data.bitcount++;
+#if 0
+                /*
+                 * Length of NEC is always 32 bits.
+                 */
+                if (32 <= data.bitcount) {
+                    data.state = Received;
+                    work.c1 = -1;
+                    work.c2 = -1;
+                    work.c3 = -1;
+                    work.d1 = -1;
+                    work.d2 = -1;
+                }
+#else
+                /*
+                 * Set timeout for tail detection automatically.
+                 */
+                timeout.detach();
+                timeout.attach_us(this, &ReceiverIR::isr_timeout, RemoteIR::TUS_NEC * 5);
+#endif
+            } else if (RemoteIR::AEHA == data.format) {
+                work.d2 = timer.read_us();
+                int a = work.d2 - work.d1;
+                if (InRange(a, RemoteIR::TUS_AEHA * 3)) {
+                    data.buffer[data.bitcount / 8] |= (1 << (data.bitcount % 8));
+                } else if (InRange(a, RemoteIR::TUS_AEHA * 1)) {
+                    data.buffer[data.bitcount / 8] &= ~(1 << (data.bitcount % 8));
+                }
+                data.bitcount++;
+#if 0
+                /*
+                 * Typical length of AEHA is 48 bits.
+                 * Please check a specification of your remote controller if you find a problem.
+                 */
+                if (48 <= data.bitcount) {
+                    data.state = Received;
+                    work.c1 = -1;
+                    work.c2 = -1;
+                    work.c3 = -1;
+                    work.d1 = -1;
+                    work.d2 = -1;
+                }
+#else
+                /*
+                 * Set timeout for tail detection automatically.
+                 */
+                timeout.detach();
+                timeout.attach_us(this, &ReceiverIR::isr_timeout, RemoteIR::TUS_AEHA * 5);
+#endif
+            } else if (RemoteIR::SONY == data.format) {
+                work.d1 = timer.read_us();
+            }
+            break;
+        case Received:
+            break;
+        default:
+            break;
+    }
+    UNLOCK();
+}
+
+void ReceiverIR::isr_rise(void) {
+    LOCK();
+    switch (work.state) {
+        case Idle:
+            if (0 <= work.c1) {
+                work.c2 = timer.read_us();
+                int a = work.c2 - work.c1;
+                if (InRange(a, RemoteIR::TUS_SONY * 4)) {
+                    data.format = RemoteIR::SONY;
+                    work.state = Receiving;
+                    data.bitcount = 0;
+                } else {
+                    static const int MINIMUM_LEADER_WIDTH = 150;
+                    if (a < MINIMUM_LEADER_WIDTH) {
+                        init_state();
+                    }
+                }
+            } else {
+                init_state();
+            }
+            break;
+        case Receiving:
+            if (RemoteIR::NEC == data.format) {
+                work.d1 = timer.read_us();
+            } else if (RemoteIR::AEHA == data.format) {
+                work.d1 = timer.read_us();
+            } else if (RemoteIR::SONY == data.format) {
+                work.d2 = timer.read_us();
+                int a = work.d2 - work.d1;
+                if (InRange(a, RemoteIR::TUS_SONY * 2)) {
+                    data.buffer[data.bitcount / 8] |= (1 << (data.bitcount % 8));
+                } else if (InRange(a, RemoteIR::TUS_SONY * 1)) {
+                    data.buffer[data.bitcount / 8] &= ~(1 << (data.bitcount % 8));
+                }
+                data.bitcount++;
+#if 0
+                /*
+                 * How do I know the correct length? (6bits, 12bits, 15bits, 20bits...)
+                 * By a model only?
+                 * Please check a specification of your remote controller if you find a problem.
+                 */
+                if (12 <= data.bitcount) {
+                    data.state = Received;
+                    work.c1 = -1;
+                    work.c2 = -1;
+                    work.c3 = -1;
+                    work.d1 = -1;
+                    work.d2 = -1;
+                }
+#else
+                /*
+                 * Set timeout for tail detection automatically.
+                 */
+                timeout.detach();
+                timeout.attach_us(this, &ReceiverIR::isr_timeout, RemoteIR::TUS_SONY * 4);
+#endif
+            }
+            break;
+        case Received:
+            break;
+        default:
+            break;
+    }
+    UNLOCK();
+}
+
+void ReceiverIR::isr_timeout(void) {
+    LOCK();
+#if 0
+    printf("# TIMEOUT [c1=%d, c2=%d, c3=%d, d1=%d, d2=%d, state=%d, format=%d, bitcount=%d]\n",
+           work.c1,
+           work.c2,
+           work.c3,
+           work.d1,
+           work.d2,
+           work.state,
+           data.format,
+           data.bitcount);
+#endif
+    if (work.state == Receiving) {
+        work.state = Received;
+        work.c1 = -1;
+        work.c2 = -1;
+        work.c3 = -1;
+        work.d1 = -1;
+        work.d2 = -1;
+    }
+    UNLOCK();
+}

diff -r 000000000000 -r 355a854280cd ReceiverIR.h
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/ReceiverIR.h	Tue Jun 19 12:24:24 2018 +0000
@@ -0,0 +1,98 @@
+/**
+ * IR receiver (Version 0.0.4)
+ *
+ * Copyright (C) 2010 Shinichiro Nakamura (CuBeatSystems)
+ * http://shinta.main.jp/
+ */
+
+#ifndef _RECEIVER_IR_H_
+#define _RECEIVER_IR_H_
+
+#include <mbed.h>
+
+#include "RemoteIR.h"
+
+/**
+ * IR receiver class.
+ */
+class ReceiverIR {
+public:
+
+    /**
+     * Constructor.
+     *
+     * @param rxpin Pin for receive IR signal.
+     */
+    explicit ReceiverIR(PinName rxpin);
+    
+    /**
+     * Destructor.
+     */
+    ~ReceiverIR();
+
+    /**
+     * State.
+     */
+    typedef enum {
+        Idle,
+        Receiving,
+        Received
+    } State;
+    
+    /**
+     * Get state.
+     *
+     * @return Current state.
+     */
+    State getState();
+    
+    /**
+     * Get data.
+     *
+     * @param format Pointer to format.
+     * @param buf Buffer of a data.
+     * @param bitlength Bit length of the buffer.
+     *
+     * @return Data bit length.
+     */
+    int getData(RemoteIR::Format *format, uint8_t *buf, int bitlength);
+    
+private:
+    
+    typedef struct {
+        RemoteIR::Format format;
+        int bitcount;
+        uint8_t buffer[64];
+    } data_t;
+    
+    typedef struct {
+        State state;
+        int c1;
+        int c2;
+        int c3;
+        int d1;
+        int d2;
+    } work_t;
+
+    InterruptIn evt;    /**< Interrupt based input for input. */
+    Timer timer;        /**< Timer for WDT. */
+    Ticker ticker;      /**< Tciker for tick. */
+    Timeout timeout;    /**< Timeout for tail. */
+
+    data_t data;
+    work_t work;
+    
+    void init_state(void);
+
+    void isr_wdt(void);
+    void isr_fall(void);
+    void isr_rise(void);
+    
+    /**
+     * ISR timeout for tail detection.
+     */
+    void isr_timeout(void);
+
+};
+
+#endif

diff -r 000000000000 -r 355a854280cd RemoteIR.h
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/RemoteIR.h	Tue Jun 19 12:24:24 2018 +0000
@@ -0,0 +1,31 @@
+/**
+ * IR remote common class (Version 0.0.4)
+ *
+ * Copyright (C) 2010 Shinichiro Nakamura (CuBeatSystems)
+ * http://shinta.main.jp/
+ */
+
+#ifndef _REMOTE_IR_H_
+#define _REMOTE_IR_H_
+
+class RemoteIR {
+public:
+
+    typedef enum {
+        UNKNOWN,
+        NEC,
+        NEC_REPEAT,
+        AEHA,
+        AEHA_REPEAT,
+        SONY
+    } Format;
+
+    static const int TUS_NEC = 562;
+    static const int TUS_AEHA = 425;
+    static const int TUS_SONY = 600;
+
+private:
+    RemoteIR();
+};
+
+#endif

diff -r 000000000000 -r 355a854280cd TransmitterIR.cpp
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/TransmitterIR.cpp	Tue Jun 19 12:24:24 2018 +0000
@@ -0,0 +1,300 @@
+/**
+ * IR transmitter (Version 0.0.4)
+ *
+ * Copyright (C) 2010 Shinichiro Nakamura (CuBeatSystems)
+ * http://shinta.main.jp/
+ */
+
+#include "TransmitterIR.h"
+
+#define LOCK()
+#define UNLOCK()
+
+/**
+ * Constructor.
+ *
+ * @param txpin Pin for transmit IR signal.
+ */
+TransmitterIR::TransmitterIR(PinName txpin) : tx(txpin) {
+    tx.write(0.0);
+    tx.period_us(26.3);
+
+    work.state = Idle;
+    work.bitcount = 0;
+    work.leader = 0;
+    work.data = 0;
+    work.trailer = 0;
+
+    data.format = RemoteIR::UNKNOWN;
+    data.bitlength = 0;
+}
+
+/**
+ * Destructor.
+ */
+TransmitterIR::~TransmitterIR() {
+}
+
+/**
+ * Get state.
+ *
+ * @return Current state.
+ */
+TransmitterIR::State TransmitterIR::getState(void) {
+    LOCK();
+    State s = work.state;
+    UNLOCK();
+    return s;
+}
+
+/**
+ * Set data.
+ *
+ * @param format Format.
+ * @param buf Buffer of a data.
+ * @param bitlength Bit length of the data.
+ *
+ * @return Data bit length.
+ */
+int TransmitterIR::setData(RemoteIR::Format format, uint8_t *buf, int bitlength) {
+    LOCK();
+    if (work.state != Idle) {
+        UNLOCK();
+        return -1;
+    }
+
+    work.state = Leader;
+    work.bitcount = 0;
+    work.leader = 0;
+    work.data = 0;
+    work.trailer = 0;
+
+    data.format = format;
+    data.bitlength = bitlength;
+    const int n = bitlength / 8 + (((bitlength % 8) != 0) ? 1 : 0);
+    for (int i = 0; i < n; i++) {
+        data.buffer[i] = buf[i];
+    }
+
+    switch (format) {
+        case RemoteIR::NEC:
+            ticker.detach();
+            ticker.attach_us(this, &TransmitterIR::tick, RemoteIR::TUS_NEC);
+            break;
+        case RemoteIR::AEHA:
+            ticker.detach();
+            ticker.attach_us(this, &TransmitterIR::tick, RemoteIR::TUS_AEHA);
+            break;
+        case RemoteIR::SONY:
+            ticker.detach();
+            ticker.attach_us(this, &TransmitterIR::tick, RemoteIR::TUS_SONY);
+            break;
+    }
+
+    UNLOCK();
+    return bitlength;
+}
+
+void TransmitterIR::tick(void) {
+    LOCK();
+    switch (work.state) {
+        case Idle:
+            work.bitcount = 0;
+            work.leader = 0;
+            work.data = 0;
+            work.trailer = 0;
+            break;
+        case Leader:
+            if (data.format == RemoteIR::NEC) {
+                /*
+                 * NEC.
+                 */
+                static const int LEADER_NEC_HEAD = 16;
+                static const int LEADER_NEC_TAIL = 8;
+                if (work.leader < LEADER_NEC_HEAD) {
+                    tx.write(0.5);
+                } else {
+                    tx.write(0.0);
+                }
+                work.leader++;
+                if ((LEADER_NEC_HEAD + LEADER_NEC_TAIL) <= work.leader) {
+                    work.state = Data;
+                }
+            } else if (data.format == RemoteIR::AEHA) {
+                /*
+                 * AEHA.
+                 */
+                static const int LEADER_AEHA_HEAD = 8;
+                static const int LEADER_AEHA_TAIL = 4;
+                if (work.leader < LEADER_AEHA_HEAD) {
+                    tx.write(0.5);
+                } else {
+                    tx.write(0.0);
+                }
+                work.leader++;
+                if ((LEADER_AEHA_HEAD + LEADER_AEHA_TAIL) <= work.leader) {
+                    work.state = Data;
+                }
+            } else if (data.format == RemoteIR::SONY) {
+                /*
+                 * SONY.
+                 */
+                static const int LEADER_SONY_HEAD = 4;
+                static const int LEADER_SONY_TAIL = 0;
+                if (work.leader < LEADER_SONY_HEAD) {
+                    tx.write(0.5);
+                } else {
+                    tx.write(0.0);
+                }
+                work.leader++;
+                if ((LEADER_SONY_HEAD + LEADER_SONY_TAIL) <= work.leader) {
+                    work.state = Data;
+                }
+            } else {
+            }
+            break;
+        case Data:
+            if (data.format == RemoteIR::NEC) {
+                /*
+                 * NEC.
+                 */
+                if (work.data == 0) {
+                    tx.write(0.5);
+                    work.data++;
+                } else {
+                    tx.write(0.0);
+                    if (0 != (data.buffer[work.bitcount / 8] & (1 << work.bitcount % 8))) {
+                        if (3 <= work.data) {
+                            work.bitcount++;
+                            work.data = 0;
+                        } else {
+                            work.data++;
+                        }
+                    } else {
+                        if (1 <= work.data) {
+                            work.bitcount++;
+                            work.data = 0;
+                        } else {
+                            work.data++;
+                        }
+                    }
+                }
+                if (data.bitlength <= work.bitcount) {
+                    work.state = Trailer;
+                }
+            } else if (data.format == RemoteIR::AEHA) {
+                /*
+                 * AEHA.
+                 */
+                if (work.data == 0) {
+                    tx.write(0.5);
+                    work.data++;
+                } else {
+                    tx.write(0.0);
+                    if (0 != (data.buffer[work.bitcount / 8] & (1 << work.bitcount % 8))) {
+                        if (3 <= work.data) {
+                            work.bitcount++;
+                            work.data = 0;
+                        } else {
+                            work.data++;
+                        }
+                    } else {
+                        if (1 <= work.data) {
+                            work.bitcount++;
+                            work.data = 0;
+                        } else {
+                            work.data++;
+                        }
+                    }
+                }
+                if (data.bitlength <= work.bitcount) {
+                    work.state = Trailer;
+                }
+            } else if (data.format == RemoteIR::SONY) {
+                /*
+                 * SONY.
+                 */
+                if (work.data == 0) {
+                    tx.write(0.0);
+                    work.data++;
+                } else {
+                    tx.write(0.5);
+                    if (0 != (data.buffer[work.bitcount / 8] & (1 << work.bitcount % 8))) {
+                        if (2 <= work.data) {
+                            work.bitcount++;
+                            work.data = 0;
+                        } else {
+                            work.data++;
+                        }
+                    } else {
+                        if (1 <= work.data) {
+                            work.bitcount++;
+                            work.data = 0;
+                        } else {
+                            work.data++;
+                        }
+                    }
+                }
+                if (data.bitlength <= work.bitcount) {
+                    work.state = Trailer;
+                }
+            } else {
+            }
+            break;
+        case Trailer:
+            if (data.format == RemoteIR::NEC) {
+                /*
+                 * NEC.
+                 */
+                static const int TRAILER_NEC_HEAD = 1;
+                static const int TRAILER_NEC_TAIL = 2;
+                if (work.trailer < TRAILER_NEC_HEAD) {
+                    tx.write(0.5);
+                } else {
+                    tx.write(0.0);
+                }
+                work.trailer++;
+                if ((TRAILER_NEC_HEAD + TRAILER_NEC_TAIL) <= work.trailer) {
+                    work.state = Idle;
+                    //ticker.detach();
+                }
+            } else if (data.format == RemoteIR::AEHA) {
+                /*
+                 * AEHA.
+                 */
+                static const int TRAILER_AEHA_HEAD = 1;
+                static const int TRAILER_AEHA_TAIL = 8000 / RemoteIR::TUS_AEHA;
+                if (work.trailer < TRAILER_AEHA_HEAD) {
+                    tx.write(0.5);
+                } else {
+                    tx.write(0.0);
+                }
+                work.trailer++;
+                if ((TRAILER_AEHA_HEAD + TRAILER_AEHA_TAIL) <= work.trailer) {
+                    work.state = Idle;
+                    //ticker.detach();
+                }
+            } else if (data.format == RemoteIR::SONY) {
+                /*
+                 * SONY.
+                 */
+                static const int TRAILER_SONY_HEAD = 0;
+                static const int TRAILER_SONY_TAIL = 0;
+                if (work.trailer < TRAILER_SONY_HEAD) {
+                    tx.write(0.5);
+                } else {
+                    tx.write(0.0);
+                }
+                work.trailer++;
+                if ((TRAILER_SONY_HEAD + TRAILER_SONY_TAIL) <= work.trailer) {
+                    work.state = Idle;
+                    //ticker.detach();
+                }
+            } else {
+            }
+            break;
+        default:
+            break;
+    }
+    UNLOCK();
+}

diff -r 000000000000 -r 355a854280cd TransmitterIR.h
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/TransmitterIR.h	Tue Jun 19 12:24:24 2018 +0000
@@ -0,0 +1,83 @@
+/**
+ * IR transmitter (Version 0.0.4)
+ *
+ * Copyright (C) 2010 Shinichiro Nakamura (CuBeatSystems)
+ * http://shinta.main.jp/
+ */
+
+#ifndef _TRANSMITTER_IR_H_
+#define _TRANSMITTER_IR_H_
+
+#include <mbed.h>
+
+#include "RemoteIR.h"
+
+/**
+ * IR transmitter class.
+ */
+class TransmitterIR {
+public:
+
+    /**
+     * Constructor.
+     *
+     * @param txpin Pin for transmit IR signal.
+     */
+    explicit TransmitterIR(PinName txpin);
+
+    /**
+     * Destructor.
+     */
+    ~TransmitterIR();
+
+    typedef enum {
+        Idle,
+        Leader,
+        Data,
+        Trailer
+    } State;
+
+    /**
+     * Get state.
+     *
+     * @return Current state.
+     */
+    State getState(void);
+
+    /**
+     * Set data.
+     *
+     * @param format Format.
+     * @param buf Buffer of a data.
+     * @param bitlength Bit length of the data.
+     *
+     * @return Data bit length.
+     */
+    int setData(RemoteIR::Format format, uint8_t *buf, int bitlength);
+
+private:
+
+    typedef struct {
+        State state;
+        int bitcount;
+        int leader;
+        int data;
+        int trailer;
+    } work_t;
+
+    typedef struct {
+        RemoteIR::Format format;
+        int bitlength;
+        uint8_t buffer[64];
+    } data_t;
+
+    PwmOut tx;
+    Ticker ticker;
+    data_t data;
+    work_t work;
+
+    void tick();
+
+};
+
+#endif
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