diff --git a/ch-2/blink.py b/ch-2/blink.py
new file mode 100644
index 0000000..6b6c2b7
--- /dev/null
+++ b/ch-2/blink.py
@@ -0,0 +1,12 @@
+import time
+import board
+import digitalio
+
+led = digitalio.DigitalInOut(board.LED)
+led.direction = digitalio.Direction.OUTPUT
+
+while True:
+    led.value = True
+    time.sleep(0.5)
+    led.value = False
+    time.sleep(0.5)
diff --git a/ch-2/helloworld.py b/ch-2/helloworld.py
new file mode 100644
index 0000000..1385fe3
--- /dev/null
+++ b/ch-2/helloworld.py
@@ -0,0 +1 @@
+print("Hello, world!")
\ No newline at end of file
diff --git a/ch-2/light_led.py b/ch-2/light_led.py
new file mode 100644
index 0000000..5914659
--- /dev/null
+++ b/ch-2/light_led.py
@@ -0,0 +1,5 @@
+import board
+import digitalio
+led = digitalio.DigitalInOut(board.LED)
+led.direction = digitalio.Direction.OUTPUT
+led.value = True