Arduino-IRremote/examples/SendAndReceive/SendAndReceive.ino

/*
 * SendAndReceive.cpp
 *
 * Demonstrates sending IR codes and receiving it simultaneously
 *
 *  This file is part of Arduino-IRremote https://github.com/Arduino-IRremote/Arduino-IRremote.
 *
 ************************************************************************************
 * MIT License
 *
 * Copyright (c) 2021-2023 Armin Joachimsmeyer
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is furnished
 * to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in all
 * copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED,
 * INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A
 * PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
 * HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF
 * CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE
 * OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 *
 ************************************************************************************
 */

#include <Arduino.h>

// select only NEC and the universal decoder for pulse distance protocols
#define DECODE_NEC          // Includes Apple and Onkyo
#define DECODE_DISTANCE_WIDTH // In case NEC is not received correctly. Universal decoder for pulse distance width protocols

//#define EXCLUDE_UNIVERSAL_PROTOCOLS // Saves up to 1000 bytes program memory.
//#define EXCLUDE_EXOTIC_PROTOCOLS // saves around 650 bytes program memory if all other protocols are active
//#define NO_LED_FEEDBACK_CODE      // saves 92 bytes program memory
//#define RECORD_GAP_MICROS 12000   // Default is 5000. Activate it for some LG air conditioner protocols
//#define SEND_PWM_BY_TIMER         // Disable carrier PWM generation in software and use (restricted) hardware PWM.
//#define USE_NO_SEND_PWM           // Use no carrier PWM, just simulate an active low receiver signal. Overrides SEND_PWM_BY_TIMER definition

//#define DEBUG // Activate this for lots of lovely debug output from the decoders.

#include "PinDefinitionsAndMore.h" // Define macros for input and output pin etc.
#include <IRremote.hpp>

#define DELAY_AFTER_SEND 2000
#define DELAY_AFTER_LOOP 5000

void setup() {
    Serial.begin(115200);
#if defined(__AVR_ATmega32U4__) || defined(SERIAL_PORT_USBVIRTUAL) || defined(SERIAL_USB) /*stm32duino*/|| defined(USBCON) /*STM32_stm32*/|| defined(SERIALUSB_PID) || defined(ARDUINO_attiny3217)
    delay(4000); // To be able to connect Serial monitor after reset or power up and before first print out. Do not wait for an attached Serial Monitor!
#endif
    // Just to know which program is running on my Arduino
    Serial.println(F("START " __FILE__ " from " __DATE__ "\r\nUsing library version " VERSION_IRREMOTE));

    // Start the receiver and if not 3. parameter specified, take LED_BUILTIN pin from the internal boards definition as default feedback LED
    IrReceiver.begin(IR_RECEIVE_PIN, ENABLE_LED_FEEDBACK);

    Serial.print(F("Ready to receive IR signals of protocols: "));
    printActiveIRProtocols(&Serial);
    Serial.println(F("at pin " STR(IR_RECEIVE_PIN)));
    IrSender.begin(); // Start with IR_SEND_PIN as send pin and enable feedback LED at default feedback LED pin
    Serial.println(F("Send IR signals at pin " STR(IR_SEND_PIN)));

#if FLASHEND >= 0x3FFF  // For 16k flash or more, like ATtiny1604
// For esp32 we use PWM generation by ledcWrite() for each pin.
#  if !defined(SEND_PWM_BY_TIMER) && !defined(USE_NO_SEND_PWM) && !defined(ESP32)
    /*
     * Print internal software PWM generation info
     */
    IrSender.enableIROut(38); // Call it with 38 kHz to initialize the values printed below
    Serial.print(F("Send signal mark duration is "));
    Serial.print(IrSender.periodOnTimeMicros);
    Serial.print(F(" us, pulse correction is "));
    Serial.print(IrSender.getPulseCorrectionNanos());
    Serial.print(F(" ns, total period is "));
    Serial.print(IrSender.periodTimeMicros);
    Serial.println(F(" us"));
#  endif

    // infos for receive
    Serial.print(RECORD_GAP_MICROS);
    Serial.println(F(" us is the (minimum) gap, after which the start of a new IR packet is assumed"));
    Serial.print(MARK_EXCESS_MICROS);
    Serial.println(F(" us are subtracted from all marks and added to all spaces for decoding"));
#endif
}

uint16_t sAddress = 0x0102;
uint8_t sCommand = 0x34;
uint8_t sRepeats = 1;

/*
 * Send NEC IR protocol
 */
void send_ir_data() {
    Serial.print(F("Sending: 0x"));
    Serial.print(sAddress, HEX);
    Serial.print(sCommand, HEX);
    Serial.println(sRepeats, HEX);
    Serial.flush(); // To avoid disturbing the software PWM generation by serial output interrupts

    // clip repeats at 4
    if (sRepeats > 4) {
        sRepeats = 4;
    }
    // Results for the first loop to: Protocol=NEC Address=0x102 Command=0x34 Raw-Data=0xCB340102 (32 bits)
    IrSender.sendNEC(sAddress, sCommand, sRepeats);
}

void receive_ir_data() {
    if (IrReceiver.decode()) {
        Serial.print(F("Decoded protocol: "));
        Serial.print(getProtocolString(IrReceiver.decodedIRData.protocol));
        Serial.print(F(", decoded raw data: "));
#if (__INT_WIDTH__ < 32)
        Serial.print(IrReceiver.decodedIRData.decodedRawData, HEX);
#else
        PrintULL::print(&Serial, IrReceiver.decodedIRData.decodedRawData, HEX);
#endif
        Serial.print(F(", decoded address: "));
        Serial.print(IrReceiver.decodedIRData.address, HEX);
        Serial.print(F(", decoded command: "));
        Serial.println(IrReceiver.decodedIRData.command, HEX);
        IrReceiver.resume();
    }
}

void loop() {
    /*
     * Print loop values
     */
    Serial.println();
    Serial.print(F("address=0x"));
    Serial.print(sAddress, HEX);
    Serial.print(F(" command=0x"));
    Serial.print(sCommand, HEX);
    Serial.print(F(" repeats="));
    Serial.println(sRepeats);
    Serial.flush();

    send_ir_data();
    IrReceiver.restartAfterSend(); // Is a NOP if sending does not require a timer.

    // wait for the receiver state machine to detect the end of a protocol
    delay((RECORD_GAP_MICROS / 1000) + 5);
    receive_ir_data();

    // Prepare data for next loop
    sAddress += 0x0101;
    sCommand += 0x11;
    sRepeats++;

    delay(100); // Loop delay
}