Chain DualKey USB HID

#include "USB.h"
#include "USBHIDKeyboard.h"
#include "USBHIDMouse.h"
#include "M5Unified.h"

#define pin_Key1 0
#define pin_Key2 17

m5::Button_Class Key1;
m5::Button_Class Key2;
USBHIDKeyboard Keyboard;
USBHIDMouse Mouse;

void setup() {
  pinMode(pin_Key1, INPUT);
  pinMode(pin_Key2, INPUT);

  Keyboard.begin();
  Mouse.begin();
  USB.begin();
}

void loop() {
  uint32_t ms = millis();
  Key1.setRawState(ms, !digitalRead(pin_Key1));
  Key2.setRawState(ms, !digitalRead(pin_Key2));

  if (Key1.wasPressed()) {
    // Keyboard.print("123 ABC def ,?#");
  }
  if (Key1.wasReleased()) {
    // Keyboard.write(KEY_RETURN);
  }
  if (Key1.wasHold()) {
    // Keyboard.press(KEY_LEFT_GUI);  // Command key in macOS, Windows key in Windows
    Keyboard.press(KEY_LEFT_CTRL);
    Keyboard.press('c');
    delay(500);
    Keyboard.releaseAll();
  }

  if (Key2.wasPressed()) {
    Mouse.move(50, 50);  // x, y
  }
  if (Key2.wasHold()) {
    Mouse.click(MOUSE_RIGHT);
  }

  delay(10);
}