#include #ifdef ARCH_RP2040 #define LED_PIN PICO_DEFAULT_LED_PIN #else #define LED_PIN 2 // GPIO2 #endif SimpleTimer procTimer; bool state = true; void blink() { digitalWrite(LED_PIN, state); state = !state; } void init() { pinMode(LED_PIN, OUTPUT); procTimer.initializeMs<1000>(blink).start(); }