diff --git a/2_BUTTON/button_function.py b/2_BUTTON/button_function.py
new file mode 100644
index 0000000..00760bc
--- /dev/null
+++ b/2_BUTTON/button_function.py
@@ -0,0 +1,11 @@
+from gpiozero import Button
+from signal import pause
+
+def say_hello():
+    print("Hello!")
+
+button = Button(23)
+
+button.when_pressed = say_hello
+
+pause()