diff --git a/ports/esp32s2/boards/unexpectedmaker_feathers2/mpconfigboard.h b/ports/esp32s2/boards/unexpectedmaker_feathers2/mpconfigboard.h
index 5a885f29ce..b68a31b9e5 100644
--- a/ports/esp32s2/boards/unexpectedmaker_feathers2/mpconfigboard.h
+++ b/ports/esp32s2/boards/unexpectedmaker_feathers2/mpconfigboard.h
@@ -37,3 +37,13 @@
 
 // #define MICROPY_HW_APA102_MOSI   (&pin_GPIO40)
 // #define MICROPY_HW_APA102_SCK    (&pin_GPIO45)
+
+#define DEFAULT_I2C_BUS_SCL (&pin_GPIO9)
+#define DEFAULT_I2C_BUS_SDA (&pin_GPIO8)
+
+#define DEFAULT_SPI_BUS_SCK (&pin_GPIO36)
+#define DEFAULT_SPI_BUS_MOSI (&pin_GPIO35)
+#define DEFAULT_SPI_BUS_MISO (&pin_GPIO37)
+
+#define DEFAULT_UART_BUS_RX (&pin_GPIO44)
+#define DEFAULT_UART_BUS_TX (&pin_GPIO43)