StickC-Plus SE IR 赤外線送信

#include "M5Unified.h"

#define IR_SEND_PIN 9   // Onboard IR transmitter pin. The IR driver circuit is active-low.
#define TX_LED_PIN  10  // Onboard normal LED pin used as the transmission indicator. It is also active-low.

// Invert the IRremote output polarity for active-low IR hardware.
#define USE_ACTIVE_LOW_OUTPUT_FOR_SEND_PIN
// Disable IRremote's built-in feedback LED code because IO10 is controlled manually below.
#define NO_LED_SEND_FEEDBACK_CODE
#include <IRremote.hpp>

constexpr uint8_t LED_ON  = LOW;
constexpr uint8_t LED_OFF = HIGH;
constexpr uint8_t IR_OFF  = HIGH;

uint16_t address = 0x0000;
uint8_t command = 0x55;
uint8_t repeats = 0;

void setup() {
    M5.begin();
    M5.Lcd.setRotation(1);
    M5.Lcd.setFont(&fonts::FreeMonoBold12pt7b);

    Serial.begin(115200);
    delay(200);

    // Set idle levels before switching the pins to OUTPUT to avoid unwanted flashes.
    digitalWrite(IR_SEND_PIN, IR_OFF);
    pinMode(IR_SEND_PIN, OUTPUT);

    digitalWrite(TX_LED_PIN, LED_OFF);
    pinMode(TX_LED_PIN, OUTPUT);

    // IR_SEND_PIN is fixed by the macro above, so IRremote 4.x must use begin() without parameters.
    IrSender.begin();

    Serial.println("StickC-Plus SE IRremote active-low example");
    Serial.printf("IR Send Pin: %d\n", IR_SEND_PIN);
    Serial.printf("TX LED Pin : %d\n", TX_LED_PIN);

    M5.Lcd.clear();
    M5.Lcd.setCursor(0, 0);
    M5.Lcd.println("IR Ready");
    M5.Lcd.printf("IR : GPIO%d\n", IR_SEND_PIN);
    M5.Lcd.printf("LED: GPIO%d\n", TX_LED_PIN);

    delay(500);
}

void loop() {
    M5.update();

    M5.Lcd.clear();
    M5.Lcd.setCursor(0, 0);
    M5.Lcd.printf("Send NEC:\n addr=0x%04x\n cmd=0x%02x\n", address, command);

    Serial.printf("Send NEC: addr=0x%04X, cmd=0x%02X, repeats=%u\n",
                  address, command, repeats);

    // Turn on the normal LED only while a transmission is in progress.
    digitalWrite(TX_LED_PIN, LED_ON);

    // Send one NEC frame using the current address and command values.
    IrSender.sendNEC(address, command, repeats);

    // Keep the indicator visible briefly after the short IR frame, then turn it off.
    delay(80);
    digitalWrite(TX_LED_PIN, LED_OFF);

    // Force the active-low IR output back to the inactive level after sending.
    digitalWrite(IR_SEND_PIN, IR_OFF);

    address += 0x0001;
    command += 0x01;
    repeats = 0;

    delay(2000);
}