diff --git a/nodes/app.overlay b/nodes/app.overlay
new file mode 100644
index 0000000..f61dff1
--- /dev/null
+++ b/nodes/app.overlay
@@ -0,0 +1,11 @@
+/* SPDX-License-Identifier: Apache-2.0 */
+
+/ {
+    buttons{
+        compatible = "gpio-keys";
+        window_switch: window_switch {
+            gpios = <&gpio0 7 GPIO_ACTIVE_HIGH>;
+            label = "Window Switch";
+        };
+    };
+};
diff --git a/nodes/boards/nrf54h20dk_nrf54h20_cpuppr.overlay b/nodes/boards/nrf54h20dk_nrf54h20_cpuppr.overlay
deleted file mode 100644
index cbc7b67..0000000
--- a/nodes/boards/nrf54h20dk_nrf54h20_cpuppr.overlay
+++ /dev/null
@@ -1,23 +0,0 @@
-/* SPDX-License-Identifier: Apache-2.0 */
-
-/ {
-	aliases {
-		led0 = &led0;
-	};
-
-	leds {
-		compatible = "gpio-leds";
-		led0: led_0 {
-			gpios = <&gpio9 0 GPIO_ACTIVE_HIGH>;
-			label = "Green LED 0";
-		};
-	};
-};
-
-&gpiote130 {
-	status = "okay";
-};
-
-&gpio9 {
-	status = "okay";
-};
diff --git a/nodes/src/window_status.c b/nodes/src/window_status.c
index 27b2208..3f49374 100644
--- a/nodes/src/window_status.c
+++ b/nodes/src/window_status.c
@@ -1,9 +1,17 @@
 #include "window_status.h"
 
+static const struct gpio_dt_spec window_switch = GPIO_DT_SPEC_GET(DT_NODELABEL(window_switch), gpios);
+
 enum error_code window_init(){
-    return success;
+    enum error_code ret = init_failed;
+    if(gpio_is_ready_dt(&window_switch) && gpio_pin_configure_dt(&window_switch, GPIO_INPUT)){
+        ret = success;
+    }else{}
+    return ret;
 }
 
 enum error_code window_get_value(enum window_status* holder){
-    return 0;
+    // active high
+    *holder = (gpio_pin_get_dt(&window_switch) ? open : closed);
+    return success;
 }
diff --git a/nodes/src/window_status.h b/nodes/src/window_status.h
index 104e0c4..401dfd7 100644
--- a/nodes/src/window_status.h
+++ b/nodes/src/window_status.h
@@ -1,6 +1,8 @@
 #ifndef WINDOW_STATUS_H
 #define WINDOW_STATUS_H
 
+#include <zephyr/drivers/gpio.h>
+
 #include "error_code.h"
 
 enum window_status{