text: #define MICROPY_HW_BOARD_NAME "SparkFun LUMIDrive"
  #define MICROPY_HW_MCU_NAME "samd21g18"
  
  // Clock rates are off: Salae reads 12MHz which is the limit even though we set it to the safer 8MHz.
  #define SPI_FLASH_BAUDRATE  (8000000)
  
  #define SPI_FLASH_MOSI_PIN   &pin_PA08
  #define SPI_FLASH_MISO_PIN   &pin_PA14
  #define SPI_FLASH_SCK_PIN    &pin_PA09
  #define SPI_FLASH_CS_PIN     &pin_PA13
  
  #define MICROPY_PORT_A    ( 0 )
  #define MICROPY_PORT_B    ( 0 )
  #define MICROPY_PORT_C    ( 0 )
  
  #define BOARD_HAS_CRYSTAL 1
  
  //I2C
  #define DEFAULT_I2C_BUS_SCL (&pin_PA23)
  #define DEFAULT_I2C_BUS_SDA (&pin_PA22)
  
  //SPI
  #define DEFAULT_SPI_BUS_SCK (&pin_PA19)
  #define DEFAULT_SPI_BUS_MOSI (&pin_PA18)
  #define DEFAULT_SPI_BUS_MISO (&pin_PA21)
  
  // USB is always used internally so skip the pin objects for it.
  #define IGNORE_PIN_PA24     1
  #define IGNORE_PIN_PA25     1
  
  #define IGNORE_PIN_PA02     1
  #define IGNORE_PIN_PA03     1
  #define IGNORE_PIN_PA10     1
  #define IGNORE_PIN_PA11     1
  #define IGNORE_PIN_PA12     1
  #define IGNORE_PIN_PA15     1
  #define IGNORE_PIN_PA16     1
  #define IGNORE_PIN_PA21     1
  #define IGNORE_PIN_PA22     1
  #define IGNORE_PIN_PA23     1
  #define IGNORE_PIN_PA27     1
  #define IGNORE_PIN_PA28     1
  
  #define IGNORE_PIN_PB02     1
  #define IGNORE_PIN_PB03     1
  #define IGNORE_PIN_PB08     1
  #define IGNORE_PIN_PB09     1
  #define IGNORE_PIN_PB10     1
  #define IGNORE_PIN_PB11     1
  #define IGNORE_PIN_PB22     1
  #define IGNORE_PIN_PB23     1
  