#define USER_LED_R 17 // Defined The User Led R As 17 The Pin Of The XIOA RP2040 // int USER_LED = 17; void setup() { // initialize digital pin LED_BUILTIN as an output. pinMode(USER_LED_R, OUTPUT); } // the loop function runs over and over again forever void loop() { digitalWrite(USER_LED_R, HIGH); // turn the LED on (HIGH is the voltage level) delay(1000); // wait for a second digitalWrite(USER_LED_R, LOW); // turn the LED off by making the voltage LOW delay(1000); // wait for a second }