diff --git a/examples/blinky_core1.zig b/examples/blinky_core1.zig
index 64f0674..0615729 100644
--- a/examples/blinky_core1.zig
+++ b/examples/blinky_core1.zig
@@ -18,6 +18,7 @@ fn core1() void {
 }
 
 pub fn main() !void {
+    led.set_function(.sio);
     led.set_direction(.out);
     multicore.launch_core1(core1);
 
diff --git a/examples/flash_program.zig b/examples/flash_program.zig
index a2999c9..4bae769 100644
--- a/examples/flash_program.zig
+++ b/examples/flash_program.zig
@@ -28,6 +28,7 @@ pub const std_options = struct {
 };
 
 pub fn main() !void {
+    led.set_function(.sio);
     led.set_direction(.out);
     led.put(1);
 
diff --git a/examples/random.zig b/examples/random.zig
index 0645839..151482e 100644
--- a/examples/random.zig
+++ b/examples/random.zig
@@ -28,6 +28,7 @@ pub const std_options = struct {
 };
 
 pub fn main() !void {
+    led.set_function(.sio);
     led.set_direction(.out);
     led.put(1);
 
diff --git a/examples/uart.zig b/examples/uart.zig
index 6be3b38..914b9ae 100644
--- a/examples/uart.zig
+++ b/examples/uart.zig
@@ -24,6 +24,7 @@ pub const std_options = struct {
 };
 
 pub fn main() !void {
+    led.set_function(.sio);
     led.set_direction(.out);
     led.put(1);
 
diff --git a/examples/usb_device.zig b/examples/usb_device.zig
index 252db52..27d961d 100644
--- a/examples/usb_device.zig
+++ b/examples/usb_device.zig
@@ -138,6 +138,7 @@ pub const std_options = struct {
 };
 
 pub fn main() !void {
+    led.set_function(.sio);
     led.set_direction(.out);
     led.put(1);
 
diff --git a/examples/usb_hid.zig b/examples/usb_hid.zig
index a19a3e0..34b9a12 100644
--- a/examples/usb_hid.zig
+++ b/examples/usb_hid.zig
@@ -153,6 +153,7 @@ pub const std_options = struct {
 };
 
 pub fn main() !void {
+    led.set_function(.sio);
     led.set_direction(.out);
     led.put(1);