Arduino/esp8266/micropython/ports/stm32/boards/ESPRUINO_PICO/mpconfigboard.h

#define MICROPY_HW_BOARD_NAME       "Espruino Pico"
#define MICROPY_HW_MCU_NAME         "STM32F401CD"

#define MICROPY_EMIT_THUMB          (0)
#define MICROPY_EMIT_INLINE_THUMB   (0)
#define MICROPY_PY_BUILTINS_COMPLEX (0)
#define MICROPY_PY_USOCKET          (0)
#define MICROPY_PY_NETWORK          (0)

#define MICROPY_HW_HAS_SWITCH       (1)
#define MICROPY_HW_HAS_FLASH        (1)
#define MICROPY_HW_ENABLE_RTC       (1)
#define MICROPY_HW_ENABLE_USB       (1)
#define MICROPY_HW_ENABLE_SERVO     (1)

// Pico has an 8 MHz HSE and the F401 does 84 MHz max
#define MICROPY_HW_CLK_PLLM (5)
#define MICROPY_HW_CLK_PLLN (210)
#define MICROPY_HW_CLK_PLLP (RCC_PLLP_DIV4)
#define MICROPY_HW_CLK_PLLQ (7)

// does not have a 32kHz crystal
#define MICROPY_HW_RTC_USE_LSE      (0)

// UART config
#define MICROPY_HW_UART1_TX     (pin_B6)
#define MICROPY_HW_UART1_RX     (pin_B7)
#define MICROPY_HW_UART2_TX     (pin_A2)
#define MICROPY_HW_UART2_RX     (pin_A3)
#define MICROPY_HW_UART2_RTS    (pin_A1)
#define MICROPY_HW_UART2_CTS    (pin_A0)
#define MICROPY_HW_UART6_TX     (pin_A11)
#define MICROPY_HW_UART6_RX     (pin_A12)

// I2C busses
#define MICROPY_HW_I2C1_SCL (pin_B6)
#define MICROPY_HW_I2C1_SDA (pin_B7)
#define MICROPY_HW_I2C2_SCL (pin_B10)
#define MICROPY_HW_I2C2_SDA (pin_B3)
#define MICROPY_HW_I2C3_SCL (pin_A8)
#define MICROPY_HW_I2C3_SDA (pin_B4)

// SPI busses
#define MICROPY_HW_SPI1_NSS  (pin_A4)
#define MICROPY_HW_SPI1_SCK  (pin_A5)
#define MICROPY_HW_SPI1_MISO (pin_A6)
#define MICROPY_HW_SPI1_MOSI (pin_A7)
#define MICROPY_HW_SPI2_NSS  (pin_B12)
#define MICROPY_HW_SPI2_SCK  (pin_B13)
#define MICROPY_HW_SPI2_MISO (pin_B14)
#define MICROPY_HW_SPI2_MOSI (pin_B15)

// BTN1 has no pullup or pulldown; it is active high and broken out on a header
#define MICROPY_HW_USRSW_PIN        (pin_C13)
#define MICROPY_HW_USRSW_PULL       (GPIO_PULLDOWN)
#define MICROPY_HW_USRSW_EXTI_MODE  (GPIO_MODE_IT_RISING)
#define MICROPY_HW_USRSW_PRESSED    (1)

// Pico has 2 LEDs
#define MICROPY_HW_LED1             (pin_B2)  // red
#define MICROPY_HW_LED2             (pin_B12) // green
#define MICROPY_HW_LED3             (pin_B12) // green
#define MICROPY_HW_LED4             (pin_B12) // green
#define MICROPY_HW_LED_ON(pin)      (mp_hal_pin_high(pin))
#define MICROPY_HW_LED_OFF(pin)     (mp_hal_pin_low(pin))

// USB config
#define MICROPY_HW_USB_FS (1)