{ "build": { "arduino":{ "ldscript": "esp32_out.ld" }, "core": "esp32", "extra_flags": "-DARDUINO_ESP32_DEV", "f_cpu": "240000000L", "f_flash": "40000000L", "flash_mode": "dio", "mcu": "esp32", "variant": "firebeetle32" }, "connectivity": [ "wifi", "bluetooth" ], "debug": { "openocd_board": "esp-wroom-32.cfg" }, "frameworks": [ "arduino", "espidf" ], "name": "FireBeetle-ESP32", "upload": { "flash_size": "16MB", "maximum_ram_size": 532480, "maximum_size": 16777216, "require_upload_port": true, "speed": 460800 }, "url": "https://wiki.dfrobot.com/FireBeetle_ESP32_IOT_Microcontroller(V3.0)__Supports_Wi-Fi_&_Bluetooth__SKU__DFR0478", "vendor": "DFRobot" }