AtomS3Liteで、Windowsログインするプログラム（セキュリティには注意しましょう）

main.cpp

#include <Arduino.h>
#include "USB.h"
#include "USBHIDKeyboard.h"
#include "USBHIDMouse.h"
#include <M5Unified.h>
#include <FastLED.h>
USBHIDKeyboard keyboard;
USBHIDMouse mouse;

void setup() {
  M5.begin();
  keyboard.begin();
  mouse.begin();         // Mouse Without Bordersで物理マウスが無いとカーソルが表示されない件に対応
  USB.begin();
}

void loop() {
  M5.update();
  if (M5.BtnA.wasClicked()) {
    Keyboard.print(" ");
    delay(2000);
    Keyboard.println("YOUR_PIN"); // YOUR_PINを置き換えてください。
  }
}

platformio.ini

; PlatformIO Project Configuration File
;
;   Build options: build flags, source filter
;   Upload options: custom upload port, speed and extra flags
;   Library options: dependencies, extra library storages
;   Advanced options: extra scripting
;
; Please visit documentation for the other options and examples
; https://docs.platformio.org/page/projectconf.html
[platformio]
default_envs = m5stack-atoms3

[env]
platform = espressif32 @ 6.5.0 
framework = arduino
upload_speed = 1500000
monitor_speed = 115200
board_build.f_flash = 80000000L
board_build.filesystem = spiffs
board_build.partitions = default_8MB.csv
build_flags = -DCORE_DEBUG_LEVEL=4
lib_deps = 
    m5stack/M5Unified@0.1.14
lib_ldf_mode = deep


[env:m5stack-atoms3]
board = m5stack-atoms3

build_flags = -DARDUINO_USB_MODE=1
              -DARDUINO_USB_CDC_ON_BOOT=1