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Interrupt.ino
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Interrupt.ino
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/*
* Interrupt.cpp
*
* Receives IR protocol data by using pin change interrupts and no polling by timer.
* !!! This WILL NOT work for all protocols.!!!
* Tested for NEC, Kaseiko, Denon, RC6, Samsung + Samsg32.
*
* To disable one of them or to enable other protocols, specify this before the "#include <irmp.hpp>" line.
* If you get warnings of redefining symbols, just ignore them or undefine them first (see Interrupt example).
* The exact names can be found in the library file irmpSelectAllProtocols.h (see Callback example).
*
* Copyright (C) 2019-2022 Armin Joachimsmeyer
*
* This file is part of IRMP https://github.com/IRMP-org/IRMP.
*
* IRMP is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
* See the GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/gpl.html>.
*
*/
#include <Arduino.h>
/*
* Set input pin and output pin definitions etc.
*/
#include "PinDefinitionsAndMore.h"
#define IRMP_PROTOCOL_NAMES 1 // Enable protocol number mapping to protocol strings - needs some FLASH. Must before #include <irmp*>
#define IRMP_USE_COMPLETE_CALLBACK 1 // Enable callback functionality
#define IRMP_ENABLE_PIN_CHANGE_INTERRUPT // Enable interrupt functionality
#define IRMP_SUPPORT_NEC_PROTOCOL 1 // NEC + APPLE + ONKYO >= 10000 ~300 bytes
#define IRMP_SUPPORT_SAMSUNG_PROTOCOL 1 // Samsung + Samsg32 >= 10000 ~300 bytes
#define IRMP_SUPPORT_KASEIKYO_PROTOCOL 1 // Kaseikyo >= 10000 ~250 bytes
#define IRMP_SUPPORT_RC6_PROTOCOL 1 // RC6 & RC6A >= 10000 ~250 bytes
#define IRMP_SUPPORT_DENON_PROTOCOL 1 // DENON, Sharp >= 10000 ~250 bytes
/*
* After setting the definitions we can include the code and compile it.
*/
#include <irmp.hpp>
IRMP_DATA irmp_data;
#define PROCESS_IR_RESULT_IN_MAIN_LOOP
#if defined(PROCESS_IR_RESULT_IN_MAIN_LOOP) || defined(ARDUINO_ARCH_MBED) || defined(ESP32)
volatile bool sIRDataJustReceived = false;
#endif
void handleReceivedIRData();
void evaluateIRCommand(uint16_t aAddress, uint16_t aCommand, uint8_t aFlags);
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_ARCH_RP2040) || 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_IRMP));
irmp_init();
irmp_irsnd_LEDFeedback(true); // Enable receive signal feedback at LED_BUILTIN
irmp_register_complete_callback_function(&handleReceivedIRData);
Serial.print(F("Ready to receive IR signals of protocols: "));
irmp_print_active_protocols(&Serial);
Serial.println(F("at pin " STR(IRMP_INPUT_PIN)));
}
void loop() {
#if defined(PROCESS_IR_RESULT_IN_MAIN_LOOP) || defined(ARDUINO_ARCH_MBED) || defined(ESP32)
if (sIRDataJustReceived) {
sIRDataJustReceived = false;
evaluateIRCommand(irmp_data.address, irmp_data.command, irmp_data.flags);
irmp_result_print(&irmp_data); // this is not allowed in ISR context for any kind of RTOS
}
#endif
/*
* Put your code here
*/
}
/*
* Callback function
* Here we know, that data is available.
* This function is executed in ISR (Interrupt Service Routine) context (interrupts are blocked here).
* Make it short and fast and keep in mind, that you can not use delay(), prints longer than print buffer size etc.,
* because they require interrupts enabled to return.
* In order to enable other interrupts you can call sei() (enable interrupt again) after evaluating/copying data.
* Good practice, but somewhat more complex, is to copy relevant data and signal receiving to main loop.
*/
#if defined(ESP8266) || defined(ESP32)
void IRAM_ATTR handleReceivedIRData()
#else
void handleReceivedIRData()
#endif
{
irmp_get_data(&irmp_data);
#if defined(PROCESS_IR_RESULT_IN_MAIN_LOOP) || defined(ARDUINO_ARCH_MBED) || defined(ESP32)
/*
* Set flag to trigger printing of results in main loop,
* since printing should not be done in a callback function
* running in ISR (Interrupt Service Routine) context where interrupts are disabled.
*/
sIRDataJustReceived = true;
#else
interrupts(); // enable interrupts
evaluateIRCommand(irmp_data.address, irmp_data.command, irmp_data.flags);
irmp_result_print(&irmp_data); // This is not recommended, but simpler and works, except for any kind of RTOS like on ESP and MBED.
#endif
}
void evaluateIRCommand(uint16_t aAddress, uint16_t aCommand, uint8_t aFlags)
{
/*
* Filter for commands from the WM010 IR Remote
*/
if (aAddress == 0xF708)
{
/*
* Skip repetitions of command
*/
if (!(aAddress & IRMP_FLAG_REPETITION))
{
/*
* Evaluation of IR command
*/
switch (aAddress)
{
case 0x48:
digitalWrite(LED_BUILTIN, HIGH);
break;
case 0x0B:
digitalWrite(LED_BUILTIN, LOW);
break;
default:
break;
}
}
}
}