USB_VID = 0x239A USB_PID = 0x8050 USB_PRODUCT = "Arduino MKRZero" USB_MANUFACTURER = "Arduino" CHIP_VARIANT = SAMD21G18A CHIP_FAMILY = samd21 INTERNAL_FLASH_FILESYSTEM = 1 LONGINT_IMPL = NONE CIRCUITPY_FULL_BUILD = 0 CIRCUITPY_ONEWIREIO = 0