platform-espressif32/boards/m5stack-core-esp32-16M.json

{
  "build": {
    "core": "esp32",
    "extra_flags": "-DARDUINO_M5Stack_Core",
    "f_cpu": "240000000L",
    "f_flash": "80000000L",
    "flash_mode": "qio",
    "mcu": "esp32",
    "variant": "m5stack_core"
  },
  "connectivity": [
    "wifi",
    "bluetooth",
    "ethernet",
    "can"
  ],
  "frameworks": [
    "arduino",
    "espidf"
  ],
  "name": "M5Stack Core ESP32 16M",
  "upload": {
    "flash_size": "16MB",
    "maximum_ram_size": 532480,
    "maximum_size": 16777216,
    "require_upload_port": true,
    "speed": 460800
  },
  "url": "http://www.m5stack.com",
  "vendor": "M5Stack"
}