{ "build": { "core": "esp32", "extra_flags": [ "-DARDUINO_DENKY_PICOV3", "-DBOARD_HAS_PSRAM" ], "f_cpu": "240000000L", "f_flash": "80000000L", "flash_mode": "qio", "mcu": "esp32", "variant": "ch_denky" }, "connectivity": [ "wifi", "bluetooth", "ethernet", "can" ], "frameworks": [ "arduino", "espidf" ], "name": "Denky D4 (PICO-V3-02)", "upload": { "flash_size": "8MB", "maximum_ram_size": 327680, "maximum_size": 8388608, "require_upload_port": true, "speed": 2000000 }, "url": "https://en.wikipedia.org/wiki/ESP32", "vendor": "Denky" }