diff --git a/boards/weact/stm32g431_core/weact_stm32g431_core_defconfig b/boards/weact/stm32g431_core/weact_stm32g431_core_defconfig
new file mode 100644
index 00000000000..19919b198ca
--- /dev/null
+++ b/boards/weact/stm32g431_core/weact_stm32g431_core_defconfig
@@ -0,0 +1,18 @@
+#
+# Copyright (c) 2023 Andreas Sandberg
+#
+# SPDX-License-Identifier: Apache-2.0
+#
+
+CONFIG_CLOCK_CONTROL=y
+CONFIG_PINCTRL=y
+
+CONFIG_ARM_MPU=y
+CONFIG_HW_STACK_PROTECTION=y
+
+CONFIG_GPIO=y
+
+CONFIG_SERIAL=y
+CONFIG_UART_INTERRUPT_DRIVEN=y
+CONFIG_CONSOLE=y
+CONFIG_UART_CONSOLE=y