diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..bee8a64
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1 @@
+__pycache__
diff --git a/__init__.py b/__init__.py
index a873e6c..07e4191 100644
--- a/__init__.py
+++ b/__init__.py
@@ -1,5 +1,111 @@
+import bpy
+
+class MESH_OT_led_strip(bpy.types.Operator):
+    """Add a LED strip"""
+    bl_idname = 'mesh.led_strip'
+    bl_label = 'Add LED Strip'
+    bl_options = { 'REGISTER', 'UNDO' }
+
+    led_num: bpy.props.IntProperty(
+        name = 'Addressable Leds',
+        description = 'Number of addresabble leds in the Strip',
+        default = 60, min = 1, soft_max = 300,
+    )
+    led_model: bpy.props.EnumProperty(
+        name = 'Model',
+        description = 'Led model (ej. WS2812)',
+        items = [
+            ('WS2812', 'WS2812', 'Individually addressable'),
+            ('WS2811', 'WS2811', 'Addressable every 3'),
+            ],
+        default = 'WS2812'
+    )
+    led_density: bpy.props.EnumProperty(
+        name = 'Density',
+        description = 'Leds per meter',
+        items = [
+            ('30', '30', '30 leds per meter'),
+            ('60', '60', '60 leds per meter'),
+            ('144', '144', '144 leds per meter'),
+            ],
+        default = '60'
+    )
+
+    @classmethod
+    def poll(cls, context):
+        return context.area.type == 'VIEW_3D'
+
+    def execute(self, context):
+
+        separation = 0.05
+        x_size = (100 - (separation * int(self.led_density))) / int(self.led_density) 
+        print(x_size)
+
+        if self.led_model == 'WS2811':
+            x_scale = 3 
+        else:
+            x_scale = 1
+
+        last_object = None
+
+        for i in range(self.led_num):
+            x_loc = ((x_size  + separation) * x_scale ) * i
+            bpy.ops.mesh.primitive_plane_add(size=1, location=(x_loc, 0, 0))
+            context.active_object.scale.x = x_scale * x_size   # 3 leds for WS2811
+            bpy.ops.object.transform_apply()
+            if last_object is not None:
+                last_object.select_set(True)
+                bpy.ops.object.join()
+            last_object = bpy.context.active_object
+    
+        context.active_object.name = 'Led Strip ' + \
+                                     self.led_model + ' ' + \
+                                     self.led_density + '/m'
+        context.active_object.color = [0.1, 0.1, 0.1, 1.0]
+        bpy.ops.object.transform_apply()
+
+        return {'FINISHED'} 
+
+    
+class VIEW3D_PT_lidrop(bpy.types.Panel):
+    bl_space_type = 'VIEW_3D'
+    bl_region_type = 'UI'
+    bl_category = 'LiDrop'
+    bl_label = 'LiDrop'
+
+    def draw(self, context):
+        self.layout.operator('mesh.led_strip',
+                             text = 'Add a new LED Strip',
+                             icon = 'ONIONSKIN_ON')
+        
+        # TODO agregar una propiedad que me diga si el objeto activo es una led strip
+        if context.active_object is not None \
+                and context.active_object.select_get():
+            nombre = context.active_object.name
+            self.layout.label(text = nombre, icon = 'OBJECT_DATA')
+        else:
+            self.layout.label(text = 'No LED strip selected')
+
+        # col = self.layout.column(align = True, heading = 'Light Drops')
+
+        # obj = context.active_object
+        # if obj is not None:
+        #     col.prop(context.active_object, 'color') # cuando no tienes nada seleccionado no debería desaparecer
+
+        
+        # col.prop(context.space_data.shading, 'color_type')
+
+
 
 def register():
-    print("hola mundo")
+    print('Lidrop ON')
+    bpy.utils.register_class(VIEW3D_PT_lidrop)
+    bpy.utils.register_class(MESH_OT_led_strip)
+
+
 def unregister():
-    print("Goodbye World")
+    print('Lidrop OFF')
+    bpy.utils.unregister_class(VIEW3D_PT_lidrop)
+    bpy.utils.unregister_class(MESH_OT_led_strip)
+
+