diff --git a/blink/blink.c b/blink/blink.c
index c6367f2bb..f413d501d 100644
--- a/blink/blink.c
+++ b/blink/blink.c
@@ -7,7 +7,7 @@
 #include "pico/stdlib.h"
 
 int main() {
-    const uint LED_PIN = 25;
+    const uint LED_PIN = PICO_DEFAULT_LED_PIN;
     gpio_init(LED_PIN);
     gpio_set_dir(LED_PIN, GPIO_OUT);
     while (true) {
diff --git a/picoboard/blinky/blinky.c b/picoboard/blinky/blinky.c
index f9cafcd21..eb2c545af 100644
--- a/picoboard/blinky/blinky.c
+++ b/picoboard/blinky/blinky.c
@@ -8,7 +8,7 @@
 #include "pico/stdlib.h"
 #include "hardware/gpio.h"
 
-const uint LED_PIN = 25;
+const uint LED_PIN = PICO_DEFAULT_LED_PIN;
 const uint DOT_PERIOD_MS = 100;
 
 const char *morse_letters[] = {
diff --git a/pio/pwm/pwm.c b/pio/pwm/pwm.c
index 0eef2e0c9..f1cc46dba 100644
--- a/pio/pwm/pwm.c
+++ b/pio/pwm/pwm.c
@@ -33,7 +33,7 @@ int main() {
     uint offset = pio_add_program(pio, &pwm_program);
     printf("Loaded program at %d\n", offset);
 
-    pwm_program_init(pio, sm, offset, 25);
+    pwm_program_init(pio, sm, offset, PICO_DEFAULT_LED_PIN);
     pio_pwm_set_period(pio, sm, (1u << 16) - 1);
 
     int level = 0;