diff --git a/software/apps/slave_node/boards/bluepill_f103rb.conf b/software/apps/slave_node/boards/bluepill_f103rb.conf
new file mode 100644
index 0000000..975165e
--- /dev/null
+++ b/software/apps/slave_node/boards/bluepill_f103rb.conf
@@ -0,0 +1,6 @@
+# Disable UART console
+CONFIG_UART_CONSOLE=n
+
+# Enable RTT console
+CONFIG_RTT_CONSOLE=y
+CONFIG_USE_SEGGER_RTT=y
\ No newline at end of file
diff --git a/software/apps/slave_node/boards/weact_stm32g431_core.overlay b/software/apps/slave_node/boards/weact_stm32g431_core.overlay
new file mode 100644
index 0000000..897a9c1
--- /dev/null
+++ b/software/apps/slave_node/boards/weact_stm32g431_core.overlay
@@ -0,0 +1,9 @@
+&usart1 {
+	modbus0 {
+		compatible = "zephyr,modbus-serial";
+		status = "okay";
+	};
+	status = "okay";
+    pinctrl-0 = <&usart1_tx_pa9 &usart1_rx_pa10>;
+    pinctrl-names = "default";
+};
diff --git a/software/apps/slave_node/prj.conf b/software/apps/slave_node/prj.conf
index 6ad01cb..6a66456 100644
--- a/software/apps/slave_node/prj.conf
+++ b/software/apps/slave_node/prj.conf
@@ -2,13 +2,6 @@
 CONFIG_CONSOLE=y
 CONFIG_LOG=y
 
-# Disable UART console
-CONFIG_UART_CONSOLE=n
-
-# Enable RTT console
-CONFIG_RTT_CONSOLE=y
-CONFIG_USE_SEGGER_RTT=y
-
 # Enable Shell
 CONFIG_SHELL=y
 CONFIG_SHELL_BACKEND_RTT=y