add board.STEMMA_I2C on QT PY RP2040

Author: Neradoc

ports/raspberrypi/boards/adafruit_qtpy_rp2040/mpconfigboard.h

@@ -7,6 +7,9 @@
 #define DEFAULT_I2C_BUS_SCL (&pin_GPIO25)
 #define DEFAULT_I2C_BUS_SDA (&pin_GPIO24)
 
+#define SECOND_I2C_BUS_SCL (&pin_GPIO23)
+#define SECOND_I2C_BUS_SDA (&pin_GPIO22)
+
 #define DEFAULT_SPI_BUS_SCK (&pin_GPIO6)
 #define DEFAULT_SPI_BUS_MOSI (&pin_GPIO3)
 #define DEFAULT_SPI_BUS_MISO (&pin_GPIO4)

ports/raspberrypi/boards/adafruit_qtpy_rp2040/pins.c

@@ -45,6 +45,7 @@ STATIC const mp_rom_map_elem_t board_module_globals_table[] = {
     { MP_ROM_QSTR(MP_QSTR_SCL1), MP_ROM_PTR(&pin_GPIO23) },
 
     { MP_ROM_QSTR(MP_QSTR_I2C), MP_ROM_PTR(&board_i2c_obj) },
+    { MP_ROM_QSTR(MP_QSTR_STEMMA_I2C), MP_ROM_PTR(&board_second_i2c_obj) },
     { MP_ROM_QSTR(MP_QSTR_SPI), MP_ROM_PTR(&board_spi_obj) },
     { MP_ROM_QSTR(MP_QSTR_UART), MP_ROM_PTR(&board_uart_obj) },
 };