added (empty) PS2 arduino project page

src/routes/projects/electronics/ps2-arduino.md

@@ -0,0 +1 @@
+This page isn't done yet.

src/routes/projects/projects2.ts

@@ -126,6 +126,24 @@ export const projects: Project[] = [
     },
 
     // 2025
+    {
+        category: ProjectCategory.ELECTRONICS,
+        id: "ps2-arduino",
+        banner: "/common/placeholder.webp",
+        bannerAlt: "",
+        title: "PS2 Arduino adapter",
+        subtitle: "DualShock 2 to XInput converter",
+        description: "",
+        isOngoing: false,
+        date: "May 2025",
+        status: ProjectStatus.FINISHED,
+        links: [
+            {
+                text: "source code",
+                link: "https://code.natconf.dev/denizk0461/ps2-arduino",
+            },
+        ],
+    },
     {
         category: ProjectCategory.GAMES,
         id: "projektike",