install Arduino Open： https://github.com/espressif/arduino-esp32/blob/master/package/package_esp32_index.template.json Download files from "tools" key: https://github.com/espressif/esp32-arduino-lib-builder/releases/download/idf-release_v5.5/esp32-arduino-libs-idf-release_v5.5-b66b5448-v1.zip https://github.com/espressif/crosstool-NG/releases/download/esp-14.2.0_20241119/xtensa-esp-elf-14.2.0_20241119-x86_64-w64-mingw32.zip ... Download: https://github.com/espressif/arduino-esp32/releases/download/3.3.0/esp32-3.3.0.zip Move download files to: C:\Users\li\AppData\Local\Arduino15\staging\packages Open Arduino IDE, Boards manager, Search "esp32", click "Install"
ESP32-S3-N16R8 has 16MB Flash and 8MB PSRAM, Select: Board type: ESP32S3 Dev Module Flash size: 16MB PSRAM: OPI PSRAM