{ "build": { "core": "teensy", "extra_flags": "-DTEENSY2PP -fsingle-precision-constant", "f_cpu": "16000000L", "mcu": "at90usb1286" }, "frameworks": [ "arduino" ], "platform": "teensy", "name": "Atmel AT90USB1286 based", "upload": { "maximum_ram_size": 8192, "maximum_size": 122880, "require_upload_port": true, "protocol": "teensy-gui" }, "url": "https://github.com/MarlinFirmware/Marlin", "vendor": "various" }