diff --git a/app/boards/nucleo_h723zg.overlay b/app/boards/nucleo_h723zg.overlay
new file mode 100644
index 0000000..5213eb3
--- /dev/null
+++ b/app/boards/nucleo_h723zg.overlay
@@ -0,0 +1,16 @@
+/ {
+	example_sensor: example-sensor {
+		compatible = "zephyr,example-sensor";
+		input-gpios = <&gpioc 13 (GPIO_PULL_UP | GPIO_ACTIVE_LOW)>;
+	};
+
+	blink_led: blink-led {
+		compatible = "blink-gpio-led";
+		led-gpios = <&gpioe 1 GPIO_ACTIVE_HIGH>;
+		blink-period-ms = <1000>;
+	};
+};
+
+&gpioc {
+	status = "okay";
+};
diff --git a/app/boards/nucleo_h743zi.overlay b/app/boards/nucleo_h743zi.overlay
new file mode 100644
index 0000000..1342692
--- /dev/null
+++ b/app/boards/nucleo_h743zi.overlay
@@ -0,0 +1,16 @@
+/ {
+	example_sensor: example-sensor {
+		compatible = "zephyr,example-sensor";
+		input-gpios = <&gpioc 13 (GPIO_PULL_UP | GPIO_ACTIVE_LOW)>;
+	};
+
+	blink_led: blink-led {
+		compatible = "blink-gpio-led";
+		led-gpios = <&gpiob 0 GPIO_ACTIVE_HIGH>;
+		blink-period-ms = <1000>;
+	};
+};
+
+&gpioc {
+	status = "okay";
+};